ngx-open-map-wrapper/node_modules/@angular/core/fesm2022/testing.mjs

3257 lines
133 KiB
JavaScript
Executable File

/**
* @license Angular v19.2.15
* (c) 2010-2025 Google LLC. https://angular.io/
* License: MIT
*/
import * as i0 from '@angular/core';
import { inject as inject$1, NgZone, ErrorHandler, Injectable, ɵDeferBlockState as _DeferBlockState, ɵtriggerResourceLoading as _triggerResourceLoading, ɵrenderDeferBlockState as _renderDeferBlockState, ɵCONTAINER_HEADER_OFFSET as _CONTAINER_HEADER_OFFSET, ɵgetDeferBlocks as _getDeferBlocks, InjectionToken, ɵDeferBlockBehavior as _DeferBlockBehavior, ɵNoopNgZone as _NoopNgZone, ApplicationRef, ɵPendingTasksInternal as _PendingTasksInternal, ɵZONELESS_ENABLED as _ZONELESS_ENABLED, ɵChangeDetectionScheduler as _ChangeDetectionScheduler, ɵEffectScheduler as _EffectScheduler, ɵMicrotaskEffectScheduler as _MicrotaskEffectScheduler, getDebugNode, RendererFactory2, ɵstringify as _stringify, Pipe, Directive, Component, NgModule, ɵReflectionCapabilities as _ReflectionCapabilities, ɵUSE_RUNTIME_DEPS_TRACKER_FOR_JIT as _USE_RUNTIME_DEPS_TRACKER_FOR_JIT, ɵdepsTracker as _depsTracker, ɵgetInjectableDef as _getInjectableDef, resolveForwardRef, ɵisComponentDefPendingResolution as _isComponentDefPendingResolution, ɵgetAsyncClassMetadataFn as _getAsyncClassMetadataFn, ɵresolveComponentResources as _resolveComponentResources, ɵRender3NgModuleRef as _Render3NgModuleRef, ApplicationInitStatus, LOCALE_ID, ɵDEFAULT_LOCALE_ID as _DEFAULT_LOCALE_ID, ɵsetLocaleId as _setLocaleId, ɵRender3ComponentFactory as _Render3ComponentFactory, ɵNG_COMP_DEF as _NG_COMP_DEF, ɵcompileComponent as _compileComponent, ɵNG_DIR_DEF as _NG_DIR_DEF, ɵcompileDirective as _compileDirective, ɵNG_PIPE_DEF as _NG_PIPE_DEF, ɵcompilePipe as _compilePipe, ɵNG_MOD_DEF as _NG_MOD_DEF, ɵpatchComponentDefWithScope as _patchComponentDefWithScope, ɵNG_INJ_DEF as _NG_INJ_DEF, ɵcompileNgModuleDefs as _compileNgModuleDefs, ɵclearResolutionOfComponentResourcesQueue as _clearResolutionOfComponentResourcesQueue, ɵrestoreComponentResolutionQueue as _restoreComponentResolutionQueue, ɵinternalProvideZoneChangeDetection as _internalProvideZoneChangeDetection, ɵChangeDetectionSchedulerImpl as _ChangeDetectionSchedulerImpl, Compiler, ɵDEFER_BLOCK_CONFIG as _DEFER_BLOCK_CONFIG, ɵINTERNAL_APPLICATION_ERROR_HANDLER as _INTERNAL_APPLICATION_ERROR_HANDLER, COMPILER_OPTIONS, Injector, ɵtransitiveScopesFor as _transitiveScopesFor, ɵgenerateStandaloneInDeclarationsError as _generateStandaloneInDeclarationsError, ɵNgModuleFactory as _NgModuleFactory, ModuleWithComponentFactories, ɵisEnvironmentProviders as _isEnvironmentProviders, ɵconvertToBitFlags as _convertToBitFlags, InjectFlags, ɵsetAllowDuplicateNgModuleIdsForTest as _setAllowDuplicateNgModuleIdsForTest, ɵresetCompiledComponents as _resetCompiledComponents, ɵsetUnknownElementStrictMode as _setUnknownElementStrictMode, ɵsetUnknownPropertyStrictMode as _setUnknownPropertyStrictMode, ɵgetUnknownElementStrictMode as _getUnknownElementStrictMode, ɵgetUnknownPropertyStrictMode as _getUnknownPropertyStrictMode, runInInjectionContext, EnvironmentInjector, ɵflushModuleScopingQueueAsMuchAsPossible as _flushModuleScopingQueueAsMuchAsPossible } from '@angular/core';
export { ɵDeferBlockBehavior as DeferBlockBehavior, ɵDeferBlockState as DeferBlockState } from '@angular/core';
import { Subscription } from 'rxjs';
import { ResourceLoader } from '@angular/compiler';
/**
* Wraps a test function in an asynchronous test zone. The test will automatically
* complete when all asynchronous calls within this zone are done. Can be used
* to wrap an {@link inject} call.
*
* Example:
*
* ```ts
* it('...', waitForAsync(inject([AClass], (object) => {
* object.doSomething.then(() => {
* expect(...);
* })
* })));
* ```
*
* @publicApi
*/
function waitForAsync(fn) {
const _Zone = typeof Zone !== 'undefined' ? Zone : null;
if (!_Zone) {
return function () {
return Promise.reject('Zone is needed for the waitForAsync() test helper but could not be found. ' +
'Please make sure that your environment includes zone.js');
};
}
const asyncTest = _Zone && _Zone[_Zone.__symbol__('asyncTest')];
if (typeof asyncTest === 'function') {
return asyncTest(fn);
}
return function () {
return Promise.reject('zone-testing.js is needed for the async() test helper but could not be found. ' +
'Please make sure that your environment includes zone.js/testing');
};
}
const RETHROW_APPLICATION_ERRORS_DEFAULT = true;
class TestBedApplicationErrorHandler {
zone = inject$1(NgZone);
userErrorHandler = inject$1(ErrorHandler);
whenStableRejectFunctions = new Set();
handleError(e) {
try {
this.zone.runOutsideAngular(() => this.userErrorHandler.handleError(e));
}
catch (userError) {
e = userError;
}
// Instead of throwing the error when there are outstanding `fixture.whenStable` promises,
// reject those promises with the error. This allows developers to write
// expectAsync(fix.whenStable()).toBeRejected();
if (this.whenStableRejectFunctions.size > 0) {
for (const fn of this.whenStableRejectFunctions.values()) {
fn(e);
}
this.whenStableRejectFunctions.clear();
}
else {
throw e;
}
}
static ɵfac = function TestBedApplicationErrorHandler_Factory(__ngFactoryType__) { return new (__ngFactoryType__ || TestBedApplicationErrorHandler)(); };
static ɵprov = /*@__PURE__*/ i0.ɵɵdefineInjectable({ token: TestBedApplicationErrorHandler, factory: TestBedApplicationErrorHandler.ɵfac });
}
(() => { (typeof ngDevMode === "undefined" || ngDevMode) && i0.ɵsetClassMetadata(TestBedApplicationErrorHandler, [{
type: Injectable
}], null, null); })();
/**
* Represents an individual defer block for testing purposes.
*
* @publicApi
*/
class DeferBlockFixture {
block;
componentFixture;
/** @docs-private */
constructor(block, componentFixture) {
this.block = block;
this.componentFixture = componentFixture;
}
/**
* Renders the specified state of the defer fixture.
* @param state the defer state to render
*/
async render(state) {
if (!hasStateTemplate(state, this.block)) {
const stateAsString = getDeferBlockStateNameFromEnum(state);
throw new Error(`Tried to render this defer block in the \`${stateAsString}\` state, ` +
`but there was no @${stateAsString.toLowerCase()} block defined in a template.`);
}
if (state === _DeferBlockState.Complete) {
await _triggerResourceLoading(this.block.tDetails, this.block.lView, this.block.tNode);
}
// If the `render` method is used explicitly - skip timer-based scheduling for
// `@placeholder` and `@loading` blocks and render them immediately.
const skipTimerScheduling = true;
_renderDeferBlockState(state, this.block.tNode, this.block.lContainer, skipTimerScheduling);
this.componentFixture.detectChanges();
}
/**
* Retrieves all nested child defer block fixtures
* in a given defer block.
*/
getDeferBlocks() {
const deferBlocks = [];
// An LContainer that represents a defer block has at most 1 view, which is
// located right after an LContainer header. Get a hold of that view and inspect
// it for nested defer blocks.
const deferBlockFixtures = [];
if (this.block.lContainer.length >= _CONTAINER_HEADER_OFFSET) {
const lView = this.block.lContainer[_CONTAINER_HEADER_OFFSET];
_getDeferBlocks(lView, deferBlocks);
for (const block of deferBlocks) {
deferBlockFixtures.push(new DeferBlockFixture(block, this.componentFixture));
}
}
return Promise.resolve(deferBlockFixtures);
}
}
function hasStateTemplate(state, block) {
switch (state) {
case _DeferBlockState.Placeholder:
return block.tDetails.placeholderTmplIndex !== null;
case _DeferBlockState.Loading:
return block.tDetails.loadingTmplIndex !== null;
case _DeferBlockState.Error:
return block.tDetails.errorTmplIndex !== null;
case _DeferBlockState.Complete:
return true;
default:
return false;
}
}
function getDeferBlockStateNameFromEnum(state) {
switch (state) {
case _DeferBlockState.Placeholder:
return 'Placeholder';
case _DeferBlockState.Loading:
return 'Loading';
case _DeferBlockState.Error:
return 'Error';
default:
return 'Main';
}
}
/** Whether test modules should be torn down by default. */
const TEARDOWN_TESTING_MODULE_ON_DESTROY_DEFAULT = true;
/** Whether unknown elements in templates should throw by default. */
const THROW_ON_UNKNOWN_ELEMENTS_DEFAULT = false;
/** Whether unknown properties in templates should throw by default. */
const THROW_ON_UNKNOWN_PROPERTIES_DEFAULT = false;
/** Whether defer blocks should use manual triggering or play through normally. */
const DEFER_BLOCK_DEFAULT_BEHAVIOR = _DeferBlockBehavior.Playthrough;
/**
* An abstract class for inserting the root test component element in a platform independent way.
*
* @publicApi
*/
class TestComponentRenderer {
insertRootElement(rootElementId) { }
removeAllRootElements() { }
}
/**
* @publicApi
*/
const ComponentFixtureAutoDetect = new InjectionToken('ComponentFixtureAutoDetect');
/**
* @publicApi
*/
const ComponentFixtureNoNgZone = new InjectionToken('ComponentFixtureNoNgZone');
/**
* Fixture for debugging and testing a component.
*
* @publicApi
*/
class ComponentFixture {
componentRef;
/**
* The DebugElement associated with the root element of this component.
*/
debugElement;
/**
* The instance of the root component class.
*/
componentInstance;
/**
* The native element at the root of the component.
*/
nativeElement;
/**
* The ElementRef for the element at the root of the component.
*/
elementRef;
/**
* The ChangeDetectorRef for the component
*/
changeDetectorRef;
_renderer;
_isDestroyed = false;
/** @internal */
_noZoneOptionIsSet = inject$1(ComponentFixtureNoNgZone, { optional: true });
/** @internal */
_ngZone = this._noZoneOptionIsSet ? new _NoopNgZone() : inject$1(NgZone);
// Inject ApplicationRef to ensure NgZone stableness causes after render hooks to run
// This will likely happen as a result of fixture.detectChanges because it calls ngZone.run
// This is a crazy way of doing things but hey, it's the world we live in.
// The zoneless scheduler should instead do this more imperatively by attaching
// the `ComponentRef` to `ApplicationRef` and calling `appRef.tick` as the `detectChanges`
// behavior.
/** @internal */
_appRef = inject$1(ApplicationRef);
_testAppRef = this._appRef;
pendingTasks = inject$1(_PendingTasksInternal);
appErrorHandler = inject$1(TestBedApplicationErrorHandler);
zonelessEnabled = inject$1(_ZONELESS_ENABLED);
scheduler = inject$1(_ChangeDetectionScheduler);
rootEffectScheduler = inject$1(_EffectScheduler);
microtaskEffectScheduler = inject$1(_MicrotaskEffectScheduler);
autoDetectDefault = this.zonelessEnabled ? true : false;
autoDetect = inject$1(ComponentFixtureAutoDetect, { optional: true }) ?? this.autoDetectDefault;
subscriptions = new Subscription();
// TODO(atscott): Remove this from public API
ngZone = this._noZoneOptionIsSet ? null : this._ngZone;
/** @docs-private */
constructor(componentRef) {
this.componentRef = componentRef;
this.changeDetectorRef = componentRef.changeDetectorRef;
this.elementRef = componentRef.location;
this.debugElement = getDebugNode(this.elementRef.nativeElement);
this.componentInstance = componentRef.instance;
this.nativeElement = this.elementRef.nativeElement;
this.componentRef = componentRef;
if (this.autoDetect) {
this._testAppRef.externalTestViews.add(this.componentRef.hostView);
this.scheduler?.notify(8 /* ɵNotificationSource.ViewAttached */);
this.scheduler?.notify(0 /* ɵNotificationSource.MarkAncestorsForTraversal */);
}
this.componentRef.hostView.onDestroy(() => {
this._testAppRef.externalTestViews.delete(this.componentRef.hostView);
});
// Create subscriptions outside the NgZone so that the callbacks run outside
// of NgZone.
this._ngZone.runOutsideAngular(() => {
this.subscriptions.add(this._ngZone.onError.subscribe({
next: (error) => {
throw error;
},
}));
});
}
/**
* Trigger a change detection cycle for the component.
*/
detectChanges(checkNoChanges = true) {
this.microtaskEffectScheduler.flush();
const originalCheckNoChanges = this.componentRef.changeDetectorRef.checkNoChanges;
try {
if (!checkNoChanges) {
this.componentRef.changeDetectorRef.checkNoChanges = () => { };
}
if (this.zonelessEnabled) {
try {
this._testAppRef.externalTestViews.add(this.componentRef.hostView);
this._appRef.tick();
}
finally {
if (!this.autoDetect) {
this._testAppRef.externalTestViews.delete(this.componentRef.hostView);
}
}
}
else {
// Run the change detection inside the NgZone so that any async tasks as part of the change
// detection are captured by the zone and can be waited for in isStable.
this._ngZone.run(() => {
// Flush root effects before `detectChanges()`, to emulate the sequencing of `tick()`.
this.rootEffectScheduler.flush();
this.changeDetectorRef.detectChanges();
this.checkNoChanges();
});
}
}
finally {
this.componentRef.changeDetectorRef.checkNoChanges = originalCheckNoChanges;
}
this.microtaskEffectScheduler.flush();
}
/**
* Do a change detection run to make sure there were no changes.
*/
checkNoChanges() {
this.changeDetectorRef.checkNoChanges();
}
/**
* Set whether the fixture should autodetect changes.
*
* Also runs detectChanges once so that any existing change is detected.
*
* @param autoDetect Whether to autodetect changes. By default, `true`.
*/
autoDetectChanges(autoDetect = true) {
if (this._noZoneOptionIsSet && !this.zonelessEnabled) {
throw new Error('Cannot call autoDetectChanges when ComponentFixtureNoNgZone is set.');
}
if (autoDetect !== this.autoDetect) {
if (autoDetect) {
this._testAppRef.externalTestViews.add(this.componentRef.hostView);
}
else {
this._testAppRef.externalTestViews.delete(this.componentRef.hostView);
}
}
this.autoDetect = autoDetect;
this.detectChanges();
}
/**
* Return whether the fixture is currently stable or has async tasks that have not been completed
* yet.
*/
isStable() {
return !this.pendingTasks.hasPendingTasks.value;
}
/**
* Get a promise that resolves when the fixture is stable.
*
* This can be used to resume testing after events have triggered asynchronous activity or
* asynchronous change detection.
*/
whenStable() {
if (this.isStable()) {
return Promise.resolve(false);
}
return new Promise((resolve, reject) => {
this.appErrorHandler.whenStableRejectFunctions.add(reject);
this._appRef.whenStable().then(() => {
this.appErrorHandler.whenStableRejectFunctions.delete(reject);
resolve(true);
});
});
}
/**
* Retrieves all defer block fixtures in the component fixture.
*/
getDeferBlocks() {
const deferBlocks = [];
const lView = this.componentRef.hostView['_lView'];
_getDeferBlocks(lView, deferBlocks);
const deferBlockFixtures = [];
for (const block of deferBlocks) {
deferBlockFixtures.push(new DeferBlockFixture(block, this));
}
return Promise.resolve(deferBlockFixtures);
}
_getRenderer() {
if (this._renderer === undefined) {
this._renderer = this.componentRef.injector.get(RendererFactory2, null);
}
return this._renderer;
}
/**
* Get a promise that resolves when the ui state is stable following animations.
*/
whenRenderingDone() {
const renderer = this._getRenderer();
if (renderer && renderer.whenRenderingDone) {
return renderer.whenRenderingDone();
}
return this.whenStable();
}
/**
* Trigger component destruction.
*/
destroy() {
this.subscriptions.unsubscribe();
this._testAppRef.externalTestViews.delete(this.componentRef.hostView);
if (!this._isDestroyed) {
this.componentRef.destroy();
this._isDestroyed = true;
}
}
}
const _Zone = typeof Zone !== 'undefined' ? Zone : null;
const fakeAsyncTestModule = _Zone && _Zone[_Zone.__symbol__('fakeAsyncTest')];
const fakeAsyncTestModuleNotLoadedErrorMessage = `zone-testing.js is needed for the fakeAsync() test helper but could not be found.
Please make sure that your environment includes zone.js/testing`;
/**
* Clears out the shared fake async zone for a test.
* To be called in a global `beforeEach`.
*
* @publicApi
*/
function resetFakeAsyncZone() {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.resetFakeAsyncZone();
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
function resetFakeAsyncZoneIfExists() {
if (fakeAsyncTestModule && Zone['ProxyZoneSpec']?.isLoaded()) {
fakeAsyncTestModule.resetFakeAsyncZone();
}
}
/**
* Wraps a function to be executed in the `fakeAsync` zone:
* - Microtasks are manually executed by calling `flushMicrotasks()`.
* - Timers are synchronous; `tick()` simulates the asynchronous passage of time.
*
* Can be used to wrap `inject()` calls.
*
* @param fn The function that you want to wrap in the `fakeAsync` zone.
* @param options
* - flush: When true, will drain the macrotask queue after the test function completes.
* When false, will throw an exception at the end of the function if there are pending timers.
*
* @usageNotes
* ### Example
*
* {@example core/testing/ts/fake_async.ts region='basic'}
*
*
* @returns The function wrapped to be executed in the `fakeAsync` zone.
* Any arguments passed when calling this returned function will be passed through to the `fn`
* function in the parameters when it is called.
*
* @publicApi
*/
function fakeAsync(fn, options) {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.fakeAsync(fn, options);
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
* Simulates the asynchronous passage of time for the timers in the `fakeAsync` zone.
*
* The microtasks queue is drained at the very start of this function and after any timer callback
* has been executed.
*
* @param millis The number of milliseconds to advance the virtual timer.
* @param tickOptions The options to pass to the `tick()` function.
*
* @usageNotes
*
* The `tick()` option is a flag called `processNewMacroTasksSynchronously`,
* which determines whether or not to invoke new macroTasks.
*
* If you provide a `tickOptions` object, but do not specify a
* `processNewMacroTasksSynchronously` property (`tick(100, {})`),
* then `processNewMacroTasksSynchronously` defaults to true.
*
* If you omit the `tickOptions` parameter (`tick(100))`), then
* `tickOptions` defaults to `{processNewMacroTasksSynchronously: true}`.
*
* ### Example
*
* {@example core/testing/ts/fake_async.ts region='basic'}
*
* The following example includes a nested timeout (new macroTask), and
* the `tickOptions` parameter is allowed to default. In this case,
* `processNewMacroTasksSynchronously` defaults to true, and the nested
* function is executed on each tick.
*
* ```ts
* it ('test with nested setTimeout', fakeAsync(() => {
* let nestedTimeoutInvoked = false;
* function funcWithNestedTimeout() {
* setTimeout(() => {
* nestedTimeoutInvoked = true;
* });
* };
* setTimeout(funcWithNestedTimeout);
* tick();
* expect(nestedTimeoutInvoked).toBe(true);
* }));
* ```
*
* In the following case, `processNewMacroTasksSynchronously` is explicitly
* set to false, so the nested timeout function is not invoked.
*
* ```ts
* it ('test with nested setTimeout', fakeAsync(() => {
* let nestedTimeoutInvoked = false;
* function funcWithNestedTimeout() {
* setTimeout(() => {
* nestedTimeoutInvoked = true;
* });
* };
* setTimeout(funcWithNestedTimeout);
* tick(0, {processNewMacroTasksSynchronously: false});
* expect(nestedTimeoutInvoked).toBe(false);
* }));
* ```
*
*
* @publicApi
*/
function tick(millis = 0, tickOptions = {
processNewMacroTasksSynchronously: true,
}) {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.tick(millis, tickOptions);
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
* Flushes any pending microtasks and simulates the asynchronous passage of time for the timers in
* the `fakeAsync` zone by
* draining the macrotask queue until it is empty.
*
* @param maxTurns The maximum number of times the scheduler attempts to clear its queue before
* throwing an error.
* @returns The simulated time elapsed, in milliseconds.
*
* @publicApi
*/
function flush(maxTurns) {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.flush(maxTurns);
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
* Discard all remaining periodic tasks.
*
* @publicApi
*/
function discardPeriodicTasks() {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.discardPeriodicTasks();
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
* Flush any pending microtasks.
*
* @publicApi
*/
function flushMicrotasks() {
if (fakeAsyncTestModule) {
return fakeAsyncTestModule.flushMicrotasks();
}
throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
let _nextReferenceId = 0;
class MetadataOverrider {
_references = new Map();
/**
* Creates a new instance for the given metadata class
* based on an old instance and overrides.
*/
overrideMetadata(metadataClass, oldMetadata, override) {
const props = {};
if (oldMetadata) {
_valueProps(oldMetadata).forEach((prop) => (props[prop] = oldMetadata[prop]));
}
if (override.set) {
if (override.remove || override.add) {
throw new Error(`Cannot set and add/remove ${_stringify(metadataClass)} at the same time!`);
}
setMetadata(props, override.set);
}
if (override.remove) {
removeMetadata(props, override.remove, this._references);
}
if (override.add) {
addMetadata(props, override.add);
}
return new metadataClass(props);
}
}
function removeMetadata(metadata, remove, references) {
const removeObjects = new Set();
for (const prop in remove) {
const removeValue = remove[prop];
if (Array.isArray(removeValue)) {
removeValue.forEach((value) => {
removeObjects.add(_propHashKey(prop, value, references));
});
}
else {
removeObjects.add(_propHashKey(prop, removeValue, references));
}
}
for (const prop in metadata) {
const propValue = metadata[prop];
if (Array.isArray(propValue)) {
metadata[prop] = propValue.filter((value) => !removeObjects.has(_propHashKey(prop, value, references)));
}
else {
if (removeObjects.has(_propHashKey(prop, propValue, references))) {
metadata[prop] = undefined;
}
}
}
}
function addMetadata(metadata, add) {
for (const prop in add) {
const addValue = add[prop];
const propValue = metadata[prop];
if (propValue != null && Array.isArray(propValue)) {
metadata[prop] = propValue.concat(addValue);
}
else {
metadata[prop] = addValue;
}
}
}
function setMetadata(metadata, set) {
for (const prop in set) {
metadata[prop] = set[prop];
}
}
function _propHashKey(propName, propValue, references) {
let nextObjectId = 0;
const objectIds = new Map();
const replacer = (key, value) => {
if (value !== null && typeof value === 'object') {
if (objectIds.has(value)) {
return objectIds.get(value);
}
// Record an id for this object such that any later references use the object's id instead
// of the object itself, in order to break cyclic pointers in objects.
objectIds.set(value, `ɵobj#${nextObjectId++}`);
// The first time an object is seen the object itself is serialized.
return value;
}
else if (typeof value === 'function') {
value = _serializeReference(value, references);
}
return value;
};
return `${propName}:${JSON.stringify(propValue, replacer)}`;
}
function _serializeReference(ref, references) {
let id = references.get(ref);
if (!id) {
id = `${_stringify(ref)}${_nextReferenceId++}`;
references.set(ref, id);
}
return id;
}
function _valueProps(obj) {
const props = [];
// regular public props
Object.keys(obj).forEach((prop) => {
if (!prop.startsWith('_')) {
props.push(prop);
}
});
// getters
let proto = obj;
while ((proto = Object.getPrototypeOf(proto))) {
Object.keys(proto).forEach((protoProp) => {
const desc = Object.getOwnPropertyDescriptor(proto, protoProp);
if (!protoProp.startsWith('_') && desc && 'get' in desc) {
props.push(protoProp);
}
});
}
return props;
}
const reflection = new _ReflectionCapabilities();
/**
* Allows to override ivy metadata for tests (via the `TestBed`).
*/
class OverrideResolver {
overrides = new Map();
resolved = new Map();
addOverride(type, override) {
const overrides = this.overrides.get(type) || [];
overrides.push(override);
this.overrides.set(type, overrides);
this.resolved.delete(type);
}
setOverrides(overrides) {
this.overrides.clear();
overrides.forEach(([type, override]) => {
this.addOverride(type, override);
});
}
getAnnotation(type) {
const annotations = reflection.annotations(type);
// Try to find the nearest known Type annotation and make sure that this annotation is an
// instance of the type we are looking for, so we can use it for resolution. Note: there might
// be multiple known annotations found due to the fact that Components can extend Directives (so
// both Directive and Component annotations would be present), so we always check if the known
// annotation has the right type.
for (let i = annotations.length - 1; i >= 0; i--) {
const annotation = annotations[i];
const isKnownType = annotation instanceof Directive ||
annotation instanceof Component ||
annotation instanceof Pipe ||
annotation instanceof NgModule;
if (isKnownType) {
return annotation instanceof this.type ? annotation : null;
}
}
return null;
}
resolve(type) {
let resolved = this.resolved.get(type) || null;
if (!resolved) {
resolved = this.getAnnotation(type);
if (resolved) {
const overrides = this.overrides.get(type);
if (overrides) {
const overrider = new MetadataOverrider();
overrides.forEach((override) => {
resolved = overrider.overrideMetadata(this.type, resolved, override);
});
}
}
this.resolved.set(type, resolved);
}
return resolved;
}
}
class DirectiveResolver extends OverrideResolver {
get type() {
return Directive;
}
}
class ComponentResolver extends OverrideResolver {
get type() {
return Component;
}
}
class PipeResolver extends OverrideResolver {
get type() {
return Pipe;
}
}
class NgModuleResolver extends OverrideResolver {
get type() {
return NgModule;
}
}
var TestingModuleOverride;
(function (TestingModuleOverride) {
TestingModuleOverride[TestingModuleOverride["DECLARATION"] = 0] = "DECLARATION";
TestingModuleOverride[TestingModuleOverride["OVERRIDE_TEMPLATE"] = 1] = "OVERRIDE_TEMPLATE";
})(TestingModuleOverride || (TestingModuleOverride = {}));
function isTestingModuleOverride(value) {
return (value === TestingModuleOverride.DECLARATION || value === TestingModuleOverride.OVERRIDE_TEMPLATE);
}
function assertNoStandaloneComponents(types, resolver, location) {
types.forEach((type) => {
if (!_getAsyncClassMetadataFn(type)) {
const component = resolver.resolve(type);
if (component && (component.standalone == null || component.standalone)) {
throw new Error(_generateStandaloneInDeclarationsError(type, location));
}
}
});
}
class TestBedCompiler {
platform;
additionalModuleTypes;
originalComponentResolutionQueue = null;
// Testing module configuration
declarations = [];
imports = [];
providers = [];
schemas = [];
// Queues of components/directives/pipes that should be recompiled.
pendingComponents = new Set();
pendingDirectives = new Set();
pendingPipes = new Set();
// Set of components with async metadata, i.e. components with `@defer` blocks
// in their templates.
componentsWithAsyncMetadata = new Set();
// Keep track of all components and directives, so we can patch Providers onto defs later.
seenComponents = new Set();
seenDirectives = new Set();
// Keep track of overridden modules, so that we can collect all affected ones in the module tree.
overriddenModules = new Set();
// Store resolved styles for Components that have template overrides present and `styleUrls`
// defined at the same time.
existingComponentStyles = new Map();
resolvers = initResolvers();
// Map of component type to an NgModule that declares it.
//
// There are a couple special cases:
// - for standalone components, the module scope value is `null`
// - when a component is declared in `TestBed.configureTestingModule()` call or
// a component's template is overridden via `TestBed.overrideTemplateUsingTestingModule()`.
// we use a special value from the `TestingModuleOverride` enum.
componentToModuleScope = new Map();
// Map that keeps initial version of component/directive/pipe defs in case
// we compile a Type again, thus overriding respective static fields. This is
// required to make sure we restore defs to their initial states between test runs.
// Note: one class may have multiple defs (for example: ɵmod and ɵinj in case of an
// NgModule), store all of them in a map.
initialNgDefs = new Map();
// Array that keeps cleanup operations for initial versions of component/directive/pipe/module
// defs in case TestBed makes changes to the originals.
defCleanupOps = [];
_injector = null;
compilerProviders = null;
providerOverrides = [];
rootProviderOverrides = [];
// Overrides for injectables with `{providedIn: SomeModule}` need to be tracked and added to that
// module's provider list.
providerOverridesByModule = new Map();
providerOverridesByToken = new Map();
scopesWithOverriddenProviders = new Set();
testModuleType;
testModuleRef = null;
deferBlockBehavior = DEFER_BLOCK_DEFAULT_BEHAVIOR;
rethrowApplicationTickErrors = RETHROW_APPLICATION_ERRORS_DEFAULT;
constructor(platform, additionalModuleTypes) {
this.platform = platform;
this.additionalModuleTypes = additionalModuleTypes;
class DynamicTestModule {
}
this.testModuleType = DynamicTestModule;
}
setCompilerProviders(providers) {
this.compilerProviders = providers;
this._injector = null;
}
configureTestingModule(moduleDef) {
// Enqueue any compilation tasks for the directly declared component.
if (moduleDef.declarations !== undefined) {
// Verify that there are no standalone components
assertNoStandaloneComponents(moduleDef.declarations, this.resolvers.component, '"TestBed.configureTestingModule" call');
this.queueTypeArray(moduleDef.declarations, TestingModuleOverride.DECLARATION);
this.declarations.push(...moduleDef.declarations);
}
// Enqueue any compilation tasks for imported modules.
if (moduleDef.imports !== undefined) {
this.queueTypesFromModulesArray(moduleDef.imports);
this.imports.push(...moduleDef.imports);
}
if (moduleDef.providers !== undefined) {
this.providers.push(...moduleDef.providers);
}
if (moduleDef.schemas !== undefined) {
this.schemas.push(...moduleDef.schemas);
}
this.deferBlockBehavior = moduleDef.deferBlockBehavior ?? DEFER_BLOCK_DEFAULT_BEHAVIOR;
this.rethrowApplicationTickErrors =
moduleDef.rethrowApplicationErrors ?? RETHROW_APPLICATION_ERRORS_DEFAULT;
}
overrideModule(ngModule, override) {
if (_USE_RUNTIME_DEPS_TRACKER_FOR_JIT) {
_depsTracker.clearScopeCacheFor(ngModule);
}
this.overriddenModules.add(ngModule);
// Compile the module right away.
this.resolvers.module.addOverride(ngModule, override);
const metadata = this.resolvers.module.resolve(ngModule);
if (metadata === null) {
throw invalidTypeError(ngModule.name, 'NgModule');
}
this.recompileNgModule(ngModule, metadata);
// At this point, the module has a valid module def (ɵmod), but the override may have introduced
// new declarations or imported modules. Ingest any possible new types and add them to the
// current queue.
this.queueTypesFromModulesArray([ngModule]);
}
overrideComponent(component, override) {
this.verifyNoStandaloneFlagOverrides(component, override);
this.resolvers.component.addOverride(component, override);
this.pendingComponents.add(component);
// If this is a component with async metadata (i.e. a component with a `@defer` block
// in a template) - store it for future processing.
this.maybeRegisterComponentWithAsyncMetadata(component);
}
overrideDirective(directive, override) {
this.verifyNoStandaloneFlagOverrides(directive, override);
this.resolvers.directive.addOverride(directive, override);
this.pendingDirectives.add(directive);
}
overridePipe(pipe, override) {
this.verifyNoStandaloneFlagOverrides(pipe, override);
this.resolvers.pipe.addOverride(pipe, override);
this.pendingPipes.add(pipe);
}
verifyNoStandaloneFlagOverrides(type, override) {
if (override.add?.hasOwnProperty('standalone') ||
override.set?.hasOwnProperty('standalone') ||
override.remove?.hasOwnProperty('standalone')) {
throw new Error(`An override for the ${type.name} class has the \`standalone\` flag. ` +
`Changing the \`standalone\` flag via TestBed overrides is not supported.`);
}
}
overrideProvider(token, provider) {
let providerDef;
if (provider.useFactory !== undefined) {
providerDef = {
provide: token,
useFactory: provider.useFactory,
deps: provider.deps || [],
multi: provider.multi,
};
}
else if (provider.useValue !== undefined) {
providerDef = { provide: token, useValue: provider.useValue, multi: provider.multi };
}
else {
providerDef = { provide: token };
}
const injectableDef = typeof token !== 'string' ? _getInjectableDef(token) : null;
const providedIn = injectableDef === null ? null : resolveForwardRef(injectableDef.providedIn);
const overridesBucket = providedIn === 'root' ? this.rootProviderOverrides : this.providerOverrides;
overridesBucket.push(providerDef);
// Keep overrides grouped by token as well for fast lookups using token
this.providerOverridesByToken.set(token, providerDef);
if (injectableDef !== null && providedIn !== null && typeof providedIn !== 'string') {
const existingOverrides = this.providerOverridesByModule.get(providedIn);
if (existingOverrides !== undefined) {
existingOverrides.push(providerDef);
}
else {
this.providerOverridesByModule.set(providedIn, [providerDef]);
}
}
}
overrideTemplateUsingTestingModule(type, template) {
const def = type[_NG_COMP_DEF];
const hasStyleUrls = () => {
const metadata = this.resolvers.component.resolve(type);
return !!metadata.styleUrl || !!metadata.styleUrls?.length;
};
const overrideStyleUrls = !!def && !_isComponentDefPendingResolution(type) && hasStyleUrls();
// In Ivy, compiling a component does not require knowing the module providing the
// component's scope, so overrideTemplateUsingTestingModule can be implemented purely via
// overrideComponent. Important: overriding template requires full Component re-compilation,
// which may fail in case styleUrls are also present (thus Component is considered as required
// resolution). In order to avoid this, we preemptively set styleUrls to an empty array,
// preserve current styles available on Component def and restore styles back once compilation
// is complete.
const override = overrideStyleUrls
? { template, styles: [], styleUrls: [], styleUrl: undefined }
: { template };
this.overrideComponent(type, { set: override });
if (overrideStyleUrls && def.styles && def.styles.length > 0) {
this.existingComponentStyles.set(type, def.styles);
}
// Set the component's scope to be the testing module.
this.componentToModuleScope.set(type, TestingModuleOverride.OVERRIDE_TEMPLATE);
}
async resolvePendingComponentsWithAsyncMetadata() {
if (this.componentsWithAsyncMetadata.size === 0)
return;
const promises = [];
for (const component of this.componentsWithAsyncMetadata) {
const asyncMetadataFn = _getAsyncClassMetadataFn(component);
if (asyncMetadataFn) {
promises.push(asyncMetadataFn());
}
}
this.componentsWithAsyncMetadata.clear();
const resolvedDeps = await Promise.all(promises);
const flatResolvedDeps = resolvedDeps.flat(2);
this.queueTypesFromModulesArray(flatResolvedDeps);
// Loaded standalone components might contain imports of NgModules
// with providers, make sure we override providers there too.
for (const component of flatResolvedDeps) {
this.applyProviderOverridesInScope(component);
}
}
async compileComponents() {
this.clearComponentResolutionQueue();
// Wait for all async metadata for components that were
// overridden, we need resolved metadata to perform an override
// and re-compile a component.
await this.resolvePendingComponentsWithAsyncMetadata();
// Verify that there were no standalone components present in the `declarations` field
// during the `TestBed.configureTestingModule` call. We perform this check here in addition
// to the logic in the `configureTestingModule` function, since at this point we have
// all async metadata resolved.
assertNoStandaloneComponents(this.declarations, this.resolvers.component, '"TestBed.configureTestingModule" call');
// Run compilers for all queued types.
let needsAsyncResources = this.compileTypesSync();
// compileComponents() should not be async unless it needs to be.
if (needsAsyncResources) {
let resourceLoader;
let resolver = (url) => {
if (!resourceLoader) {
resourceLoader = this.injector.get(ResourceLoader);
}
return Promise.resolve(resourceLoader.get(url));
};
await _resolveComponentResources(resolver);
}
}
finalize() {
// One last compile
this.compileTypesSync();
// Create the testing module itself.
this.compileTestModule();
this.applyTransitiveScopes();
this.applyProviderOverrides();
// Patch previously stored `styles` Component values (taken from ɵcmp), in case these
// Components have `styleUrls` fields defined and template override was requested.
this.patchComponentsWithExistingStyles();
// Clear the componentToModuleScope map, so that future compilations don't reset the scope of
// every component.
this.componentToModuleScope.clear();
const parentInjector = this.platform.injector;
this.testModuleRef = new _Render3NgModuleRef(this.testModuleType, parentInjector, []);
// ApplicationInitStatus.runInitializers() is marked @internal to core.
// Cast it to any before accessing it.
this.testModuleRef.injector.get(ApplicationInitStatus).runInitializers();
// Set locale ID after running app initializers, since locale information might be updated while
// running initializers. This is also consistent with the execution order while bootstrapping an
// app (see `packages/core/src/application_ref.ts` file).
const localeId = this.testModuleRef.injector.get(LOCALE_ID, _DEFAULT_LOCALE_ID);
_setLocaleId(localeId);
return this.testModuleRef;
}
/**
* @internal
*/
_compileNgModuleSync(moduleType) {
this.queueTypesFromModulesArray([moduleType]);
this.compileTypesSync();
this.applyProviderOverrides();
this.applyProviderOverridesInScope(moduleType);
this.applyTransitiveScopes();
}
/**
* @internal
*/
async _compileNgModuleAsync(moduleType) {
this.queueTypesFromModulesArray([moduleType]);
await this.compileComponents();
this.applyProviderOverrides();
this.applyProviderOverridesInScope(moduleType);
this.applyTransitiveScopes();
}
/**
* @internal
*/
_getModuleResolver() {
return this.resolvers.module;
}
/**
* @internal
*/
_getComponentFactories(moduleType) {
return maybeUnwrapFn(moduleType.ɵmod.declarations).reduce((factories, declaration) => {
const componentDef = declaration.ɵcmp;
componentDef && factories.push(new _Render3ComponentFactory(componentDef, this.testModuleRef));
return factories;
}, []);
}
compileTypesSync() {
// Compile all queued components, directives, pipes.
let needsAsyncResources = false;
this.pendingComponents.forEach((declaration) => {
if (_getAsyncClassMetadataFn(declaration)) {
throw new Error(`Component '${declaration.name}' has unresolved metadata. ` +
`Please call \`await TestBed.compileComponents()\` before running this test.`);
}
needsAsyncResources = needsAsyncResources || _isComponentDefPendingResolution(declaration);
const metadata = this.resolvers.component.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Component');
}
this.maybeStoreNgDef(_NG_COMP_DEF, declaration);
if (_USE_RUNTIME_DEPS_TRACKER_FOR_JIT) {
_depsTracker.clearScopeCacheFor(declaration);
}
_compileComponent(declaration, metadata);
});
this.pendingComponents.clear();
this.pendingDirectives.forEach((declaration) => {
const metadata = this.resolvers.directive.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Directive');
}
this.maybeStoreNgDef(_NG_DIR_DEF, declaration);
_compileDirective(declaration, metadata);
});
this.pendingDirectives.clear();
this.pendingPipes.forEach((declaration) => {
const metadata = this.resolvers.pipe.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Pipe');
}
this.maybeStoreNgDef(_NG_PIPE_DEF, declaration);
_compilePipe(declaration, metadata);
});
this.pendingPipes.clear();
return needsAsyncResources;
}
applyTransitiveScopes() {
if (this.overriddenModules.size > 0) {
// Module overrides (via `TestBed.overrideModule`) might affect scopes that were previously
// calculated and stored in `transitiveCompileScopes`. If module overrides are present,
// collect all affected modules and reset scopes to force their re-calculation.
const testingModuleDef = this.testModuleType[_NG_MOD_DEF];
const affectedModules = this.collectModulesAffectedByOverrides(testingModuleDef.imports);
if (affectedModules.size > 0) {
affectedModules.forEach((moduleType) => {
if (!_USE_RUNTIME_DEPS_TRACKER_FOR_JIT) {
this.storeFieldOfDefOnType(moduleType, _NG_MOD_DEF, 'transitiveCompileScopes');
moduleType[_NG_MOD_DEF].transitiveCompileScopes = null;
}
else {
_depsTracker.clearScopeCacheFor(moduleType);
}
});
}
}
const moduleToScope = new Map();
const getScopeOfModule = (moduleType) => {
if (!moduleToScope.has(moduleType)) {
const isTestingModule = isTestingModuleOverride(moduleType);
const realType = isTestingModule ? this.testModuleType : moduleType;
moduleToScope.set(moduleType, _transitiveScopesFor(realType));
}
return moduleToScope.get(moduleType);
};
this.componentToModuleScope.forEach((moduleType, componentType) => {
if (moduleType !== null) {
const moduleScope = getScopeOfModule(moduleType);
this.storeFieldOfDefOnType(componentType, _NG_COMP_DEF, 'directiveDefs');
this.storeFieldOfDefOnType(componentType, _NG_COMP_DEF, 'pipeDefs');
_patchComponentDefWithScope(getComponentDef(componentType), moduleScope);
}
// `tView` that is stored on component def contains information about directives and pipes
// that are in the scope of this component. Patching component scope will cause `tView` to be
// changed. Store original `tView` before patching scope, so the `tView` (including scope
// information) is restored back to its previous/original state before running next test.
// Resetting `tView` is also needed for cases when we apply provider overrides and those
// providers are defined on component's level, in which case they may end up included into
// `tView.blueprint`.
this.storeFieldOfDefOnType(componentType, _NG_COMP_DEF, 'tView');
});
this.componentToModuleScope.clear();
}
applyProviderOverrides() {
const maybeApplyOverrides = (field) => (type) => {
const resolver = field === _NG_COMP_DEF ? this.resolvers.component : this.resolvers.directive;
const metadata = resolver.resolve(type);
if (this.hasProviderOverrides(metadata.providers)) {
this.patchDefWithProviderOverrides(type, field);
}
};
this.seenComponents.forEach(maybeApplyOverrides(_NG_COMP_DEF));
this.seenDirectives.forEach(maybeApplyOverrides(_NG_DIR_DEF));
this.seenComponents.clear();
this.seenDirectives.clear();
}
/**
* Applies provider overrides to a given type (either an NgModule or a standalone component)
* and all imported NgModules and standalone components recursively.
*/
applyProviderOverridesInScope(type) {
const hasScope = isStandaloneComponent(type) || isNgModule(type);
// The function can be re-entered recursively while inspecting dependencies
// of an NgModule or a standalone component. Exit early if we come across a
// type that can not have a scope (directive or pipe) or the type is already
// processed earlier.
if (!hasScope || this.scopesWithOverriddenProviders.has(type)) {
return;
}
this.scopesWithOverriddenProviders.add(type);
// NOTE: the line below triggers JIT compilation of the module injector,
// which also invokes verification of the NgModule semantics, which produces
// detailed error messages. The fact that the code relies on this line being
// present here is suspicious and should be refactored in a way that the line
// below can be moved (for ex. after an early exit check below).
const injectorDef = type[_NG_INJ_DEF];
// No provider overrides, exit early.
if (this.providerOverridesByToken.size === 0)
return;
if (isStandaloneComponent(type)) {
// Visit all component dependencies and override providers there.
const def = getComponentDef(type);
const dependencies = maybeUnwrapFn(def.dependencies ?? []);
for (const dependency of dependencies) {
this.applyProviderOverridesInScope(dependency);
}
}
else {
const providers = [
...injectorDef.providers,
...(this.providerOverridesByModule.get(type) || []),
];
if (this.hasProviderOverrides(providers)) {
this.maybeStoreNgDef(_NG_INJ_DEF, type);
this.storeFieldOfDefOnType(type, _NG_INJ_DEF, 'providers');
injectorDef.providers = this.getOverriddenProviders(providers);
}
// Apply provider overrides to imported modules recursively
const moduleDef = type[_NG_MOD_DEF];
const imports = maybeUnwrapFn(moduleDef.imports);
for (const importedModule of imports) {
this.applyProviderOverridesInScope(importedModule);
}
// Also override the providers on any ModuleWithProviders imports since those don't appear in
// the moduleDef.
for (const importedModule of flatten(injectorDef.imports)) {
if (isModuleWithProviders(importedModule)) {
this.defCleanupOps.push({
object: importedModule,
fieldName: 'providers',
originalValue: importedModule.providers,
});
importedModule.providers = this.getOverriddenProviders(importedModule.providers);
}
}
}
}
patchComponentsWithExistingStyles() {
this.existingComponentStyles.forEach((styles, type) => (type[_NG_COMP_DEF].styles = styles));
this.existingComponentStyles.clear();
}
queueTypeArray(arr, moduleType) {
for (const value of arr) {
if (Array.isArray(value)) {
this.queueTypeArray(value, moduleType);
}
else {
this.queueType(value, moduleType);
}
}
}
recompileNgModule(ngModule, metadata) {
// Cache the initial ngModuleDef as it will be overwritten.
this.maybeStoreNgDef(_NG_MOD_DEF, ngModule);
this.maybeStoreNgDef(_NG_INJ_DEF, ngModule);
_compileNgModuleDefs(ngModule, metadata);
}
maybeRegisterComponentWithAsyncMetadata(type) {
const asyncMetadataFn = _getAsyncClassMetadataFn(type);
if (asyncMetadataFn) {
this.componentsWithAsyncMetadata.add(type);
}
}
queueType(type, moduleType) {
// If this is a component with async metadata (i.e. a component with a `@defer` block
// in a template) - store it for future processing.
this.maybeRegisterComponentWithAsyncMetadata(type);
const component = this.resolvers.component.resolve(type);
if (component) {
// Check whether a give Type has respective NG def (ɵcmp) and compile if def is
// missing. That might happen in case a class without any Angular decorators extends another
// class where Component/Directive/Pipe decorator is defined.
if (_isComponentDefPendingResolution(type) || !type.hasOwnProperty(_NG_COMP_DEF)) {
this.pendingComponents.add(type);
}
this.seenComponents.add(type);
// Keep track of the module which declares this component, so later the component's scope
// can be set correctly. If the component has already been recorded here, then one of several
// cases is true:
// * the module containing the component was imported multiple times (common).
// * the component is declared in multiple modules (which is an error).
// * the component was in 'declarations' of the testing module, and also in an imported module
// in which case the module scope will be TestingModuleOverride.DECLARATION.
// * overrideTemplateUsingTestingModule was called for the component in which case the module
// scope will be TestingModuleOverride.OVERRIDE_TEMPLATE.
//
// If the component was previously in the testing module's 'declarations' (meaning the
// current value is TestingModuleOverride.DECLARATION), then `moduleType` is the component's
// real module, which was imported. This pattern is understood to mean that the component
// should use its original scope, but that the testing module should also contain the
// component in its scope.
if (!this.componentToModuleScope.has(type) ||
this.componentToModuleScope.get(type) === TestingModuleOverride.DECLARATION) {
this.componentToModuleScope.set(type, moduleType);
}
return;
}
const directive = this.resolvers.directive.resolve(type);
if (directive) {
if (!type.hasOwnProperty(_NG_DIR_DEF)) {
this.pendingDirectives.add(type);
}
this.seenDirectives.add(type);
return;
}
const pipe = this.resolvers.pipe.resolve(type);
if (pipe && !type.hasOwnProperty(_NG_PIPE_DEF)) {
this.pendingPipes.add(type);
return;
}
}
queueTypesFromModulesArray(arr) {
// Because we may encounter the same NgModule or a standalone Component while processing
// the dependencies of an NgModule or a standalone Component, we cache them in this set so we
// can skip ones that have already been seen encountered. In some test setups, this caching
// resulted in 10X runtime improvement.
const processedDefs = new Set();
const queueTypesFromModulesArrayRecur = (arr) => {
for (const value of arr) {
if (Array.isArray(value)) {
queueTypesFromModulesArrayRecur(value);
}
else if (hasNgModuleDef(value)) {
const def = value.ɵmod;
if (processedDefs.has(def)) {
continue;
}
processedDefs.add(def);
// Look through declarations, imports, and exports, and queue
// everything found there.
this.queueTypeArray(maybeUnwrapFn(def.declarations), value);
queueTypesFromModulesArrayRecur(maybeUnwrapFn(def.imports));
queueTypesFromModulesArrayRecur(maybeUnwrapFn(def.exports));
}
else if (isModuleWithProviders(value)) {
queueTypesFromModulesArrayRecur([value.ngModule]);
}
else if (isStandaloneComponent(value)) {
this.queueType(value, null);
const def = getComponentDef(value);
if (processedDefs.has(def)) {
continue;
}
processedDefs.add(def);
const dependencies = maybeUnwrapFn(def.dependencies ?? []);
dependencies.forEach((dependency) => {
// Note: in AOT, the `dependencies` might also contain regular
// (NgModule-based) Component, Directive and Pipes, so we handle
// them separately and proceed with recursive process for standalone
// Components and NgModules only.
if (isStandaloneComponent(dependency) || hasNgModuleDef(dependency)) {
queueTypesFromModulesArrayRecur([dependency]);
}
else {
this.queueType(dependency, null);
}
});
}
}
};
queueTypesFromModulesArrayRecur(arr);
}
// When module overrides (via `TestBed.overrideModule`) are present, it might affect all modules
// that import (even transitively) an overridden one. For all affected modules we need to
// recalculate their scopes for a given test run and restore original scopes at the end. The goal
// of this function is to collect all affected modules in a set for further processing. Example:
// if we have the following module hierarchy: A -> B -> C (where `->` means `imports`) and module
// `C` is overridden, we consider `A` and `B` as affected, since their scopes might become
// invalidated with the override.
collectModulesAffectedByOverrides(arr) {
const seenModules = new Set();
const affectedModules = new Set();
const calcAffectedModulesRecur = (arr, path) => {
for (const value of arr) {
if (Array.isArray(value)) {
// If the value is an array, just flatten it (by invoking this function recursively),
// keeping "path" the same.
calcAffectedModulesRecur(value, path);
}
else if (hasNgModuleDef(value)) {
if (seenModules.has(value)) {
// If we've seen this module before and it's included into "affected modules" list, mark
// the whole path that leads to that module as affected, but do not descend into its
// imports, since we already examined them before.
if (affectedModules.has(value)) {
path.forEach((item) => affectedModules.add(item));
}
continue;
}
seenModules.add(value);
if (this.overriddenModules.has(value)) {
path.forEach((item) => affectedModules.add(item));
}
// Examine module imports recursively to look for overridden modules.
const moduleDef = value[_NG_MOD_DEF];
calcAffectedModulesRecur(maybeUnwrapFn(moduleDef.imports), path.concat(value));
}
}
};
calcAffectedModulesRecur(arr, []);
return affectedModules;
}
/**
* Preserve an original def (such as ɵmod, ɵinj, etc) before applying an override.
* Note: one class may have multiple defs (for example: ɵmod and ɵinj in case of
* an NgModule). If there is a def in a set already, don't override it, since
* an original one should be restored at the end of a test.
*/
maybeStoreNgDef(prop, type) {
if (!this.initialNgDefs.has(type)) {
this.initialNgDefs.set(type, new Map());
}
const currentDefs = this.initialNgDefs.get(type);
if (!currentDefs.has(prop)) {
const currentDef = Object.getOwnPropertyDescriptor(type, prop);
currentDefs.set(prop, currentDef);
}
}
storeFieldOfDefOnType(type, defField, fieldName) {
const def = type[defField];
const originalValue = def[fieldName];
this.defCleanupOps.push({ object: def, fieldName, originalValue });
}
/**
* Clears current components resolution queue, but stores the state of the queue, so we can
* restore it later. Clearing the queue is required before we try to compile components (via
* `TestBed.compileComponents`), so that component defs are in sync with the resolution queue.
*/
clearComponentResolutionQueue() {
if (this.originalComponentResolutionQueue === null) {
this.originalComponentResolutionQueue = new Map();
}
_clearResolutionOfComponentResourcesQueue().forEach((value, key) => this.originalComponentResolutionQueue.set(key, value));
}
/*
* Restores component resolution queue to the previously saved state. This operation is performed
* as a part of restoring the state after completion of the current set of tests (that might
* potentially mutate the state).
*/
restoreComponentResolutionQueue() {
if (this.originalComponentResolutionQueue !== null) {
_restoreComponentResolutionQueue(this.originalComponentResolutionQueue);
this.originalComponentResolutionQueue = null;
}
}
restoreOriginalState() {
// Process cleanup ops in reverse order so the field's original value is restored correctly (in
// case there were multiple overrides for the same field).
forEachRight(this.defCleanupOps, (op) => {
op.object[op.fieldName] = op.originalValue;
});
// Restore initial component/directive/pipe defs
this.initialNgDefs.forEach((defs, type) => {
if (_USE_RUNTIME_DEPS_TRACKER_FOR_JIT) {
_depsTracker.clearScopeCacheFor(type);
}
defs.forEach((descriptor, prop) => {
if (!descriptor) {
// Delete operations are generally undesirable since they have performance
// implications on objects they were applied to. In this particular case, situations
// where this code is invoked should be quite rare to cause any noticeable impact,
// since it's applied only to some test cases (for example when class with no
// annotations extends some @Component) when we need to clear 'ɵcmp' field on a given
// class to restore its original state (before applying overrides and running tests).
delete type[prop];
}
else {
Object.defineProperty(type, prop, descriptor);
}
});
});
this.initialNgDefs.clear();
this.scopesWithOverriddenProviders.clear();
this.restoreComponentResolutionQueue();
// Restore the locale ID to the default value, this shouldn't be necessary but we never know
_setLocaleId(_DEFAULT_LOCALE_ID);
}
compileTestModule() {
class RootScopeModule {
}
_compileNgModuleDefs(RootScopeModule, {
providers: [
...this.rootProviderOverrides,
_internalProvideZoneChangeDetection({}),
TestBedApplicationErrorHandler,
{ provide: _ChangeDetectionScheduler, useExisting: _ChangeDetectionSchedulerImpl },
],
});
const providers = [
{ provide: Compiler, useFactory: () => new R3TestCompiler(this) },
{ provide: _DEFER_BLOCK_CONFIG, useValue: { behavior: this.deferBlockBehavior } },
{
provide: _INTERNAL_APPLICATION_ERROR_HANDLER,
useFactory: () => {
if (this.rethrowApplicationTickErrors) {
const handler = inject$1(TestBedApplicationErrorHandler);
return (e) => {
handler.handleError(e);
};
}
else {
const userErrorHandler = inject$1(ErrorHandler);
const ngZone = inject$1(NgZone);
return (e) => ngZone.runOutsideAngular(() => userErrorHandler.handleError(e));
}
},
},
...this.providers,
...this.providerOverrides,
];
const imports = [RootScopeModule, this.additionalModuleTypes, this.imports || []];
_compileNgModuleDefs(this.testModuleType, {
declarations: this.declarations,
imports,
schemas: this.schemas,
providers,
},
/* allowDuplicateDeclarationsInRoot */ true);
this.applyProviderOverridesInScope(this.testModuleType);
}
get injector() {
if (this._injector !== null) {
return this._injector;
}
const providers = [];
const compilerOptions = this.platform.injector.get(COMPILER_OPTIONS, []);
compilerOptions.forEach((opts) => {
if (opts.providers) {
providers.push(opts.providers);
}
});
if (this.compilerProviders !== null) {
providers.push(...this.compilerProviders);
}
this._injector = Injector.create({ providers, parent: this.platform.injector });
return this._injector;
}
// get overrides for a specific provider (if any)
getSingleProviderOverrides(provider) {
const token = getProviderToken(provider);
return this.providerOverridesByToken.get(token) || null;
}
getProviderOverrides(providers) {
if (!providers || !providers.length || this.providerOverridesByToken.size === 0)
return [];
// There are two flattening operations here. The inner flattenProviders() operates on the
// metadata's providers and applies a mapping function which retrieves overrides for each
// incoming provider. The outer flatten() then flattens the produced overrides array. If this is
// not done, the array can contain other empty arrays (e.g. `[[], []]`) which leak into the
// providers array and contaminate any error messages that might be generated.
return flatten(flattenProviders(providers, (provider) => this.getSingleProviderOverrides(provider) || []));
}
getOverriddenProviders(providers) {
if (!providers || !providers.length || this.providerOverridesByToken.size === 0)
return [];
const flattenedProviders = flattenProviders(providers);
const overrides = this.getProviderOverrides(flattenedProviders);
const overriddenProviders = [...flattenedProviders, ...overrides];
const final = [];
const seenOverriddenProviders = new Set();
// We iterate through the list of providers in reverse order to make sure provider overrides
// take precedence over the values defined in provider list. We also filter out all providers
// that have overrides, keeping overridden values only. This is needed, since presence of a
// provider with `ngOnDestroy` hook will cause this hook to be registered and invoked later.
forEachRight(overriddenProviders, (provider) => {
const token = getProviderToken(provider);
if (this.providerOverridesByToken.has(token)) {
if (!seenOverriddenProviders.has(token)) {
seenOverriddenProviders.add(token);
// Treat all overridden providers as `{multi: false}` (even if it's a multi-provider) to
// make sure that provided override takes highest precedence and is not combined with
// other instances of the same multi provider.
final.unshift({ ...provider, multi: false });
}
}
else {
final.unshift(provider);
}
});
return final;
}
hasProviderOverrides(providers) {
return this.getProviderOverrides(providers).length > 0;
}
patchDefWithProviderOverrides(declaration, field) {
const def = declaration[field];
if (def && def.providersResolver) {
this.maybeStoreNgDef(field, declaration);
const resolver = def.providersResolver;
const processProvidersFn = (providers) => this.getOverriddenProviders(providers);
this.storeFieldOfDefOnType(declaration, field, 'providersResolver');
def.providersResolver = (ngDef) => resolver(ngDef, processProvidersFn);
}
}
}
function initResolvers() {
return {
module: new NgModuleResolver(),
component: new ComponentResolver(),
directive: new DirectiveResolver(),
pipe: new PipeResolver(),
};
}
function isStandaloneComponent(value) {
const def = getComponentDef(value);
return !!def?.standalone;
}
function getComponentDef(value) {
return value.ɵcmp ?? null;
}
function hasNgModuleDef(value) {
return value.hasOwnProperty('ɵmod');
}
function isNgModule(value) {
return hasNgModuleDef(value);
}
function maybeUnwrapFn(maybeFn) {
return maybeFn instanceof Function ? maybeFn() : maybeFn;
}
function flatten(values) {
const out = [];
values.forEach((value) => {
if (Array.isArray(value)) {
out.push(...flatten(value));
}
else {
out.push(value);
}
});
return out;
}
function identityFn(value) {
return value;
}
function flattenProviders(providers, mapFn = identityFn) {
const out = [];
for (let provider of providers) {
if (_isEnvironmentProviders(provider)) {
provider = provider.ɵproviders;
}
if (Array.isArray(provider)) {
out.push(...flattenProviders(provider, mapFn));
}
else {
out.push(mapFn(provider));
}
}
return out;
}
function getProviderField(provider, field) {
return provider && typeof provider === 'object' && provider[field];
}
function getProviderToken(provider) {
return getProviderField(provider, 'provide') || provider;
}
function isModuleWithProviders(value) {
return value.hasOwnProperty('ngModule');
}
function forEachRight(values, fn) {
for (let idx = values.length - 1; idx >= 0; idx--) {
fn(values[idx], idx);
}
}
function invalidTypeError(name, expectedType) {
return new Error(`${name} class doesn't have @${expectedType} decorator or is missing metadata.`);
}
class R3TestCompiler {
testBed;
constructor(testBed) {
this.testBed = testBed;
}
compileModuleSync(moduleType) {
this.testBed._compileNgModuleSync(moduleType);
return new _NgModuleFactory(moduleType);
}
async compileModuleAsync(moduleType) {
await this.testBed._compileNgModuleAsync(moduleType);
return new _NgModuleFactory(moduleType);
}
compileModuleAndAllComponentsSync(moduleType) {
const ngModuleFactory = this.compileModuleSync(moduleType);
const componentFactories = this.testBed._getComponentFactories(moduleType);
return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);
}
async compileModuleAndAllComponentsAsync(moduleType) {
const ngModuleFactory = await this.compileModuleAsync(moduleType);
const componentFactories = this.testBed._getComponentFactories(moduleType);
return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);
}
clearCache() { }
clearCacheFor(type) { }
getModuleId(moduleType) {
const meta = this.testBed._getModuleResolver().resolve(moduleType);
return (meta && meta.id) || undefined;
}
}
// The formatter and CI disagree on how this import statement should be formatted. Both try to keep
// it on one line, too, which has gotten very hard to read & manage. So disable the formatter for
// this statement only.
let _nextRootElementId = 0;
/**
* Returns a singleton of the `TestBed` class.
*
* @publicApi
*/
function getTestBed() {
return TestBedImpl.INSTANCE;
}
/**
* @description
* Configures and initializes environment for unit testing and provides methods for
* creating components and services in unit tests.
*
* TestBed is the primary api for writing unit tests for Angular applications and libraries.
*/
class TestBedImpl {
static _INSTANCE = null;
static get INSTANCE() {
return (TestBedImpl._INSTANCE = TestBedImpl._INSTANCE || new TestBedImpl());
}
/**
* Teardown options that have been configured at the environment level.
* Used as a fallback if no instance-level options have been provided.
*/
static _environmentTeardownOptions;
/**
* "Error on unknown elements" option that has been configured at the environment level.
* Used as a fallback if no instance-level option has been provided.
*/
static _environmentErrorOnUnknownElementsOption;
/**
* "Error on unknown properties" option that has been configured at the environment level.
* Used as a fallback if no instance-level option has been provided.
*/
static _environmentErrorOnUnknownPropertiesOption;
/**
* Teardown options that have been configured at the `TestBed` instance level.
* These options take precedence over the environment-level ones.
*/
_instanceTeardownOptions;
/**
* Defer block behavior option that specifies whether defer blocks will be triggered manually
* or set to play through.
*/
_instanceDeferBlockBehavior = DEFER_BLOCK_DEFAULT_BEHAVIOR;
/**
* "Error on unknown elements" option that has been configured at the `TestBed` instance level.
* This option takes precedence over the environment-level one.
*/
_instanceErrorOnUnknownElementsOption;
/**
* "Error on unknown properties" option that has been configured at the `TestBed` instance level.
* This option takes precedence over the environment-level one.
*/
_instanceErrorOnUnknownPropertiesOption;
/**
* Stores the previous "Error on unknown elements" option value,
* allowing to restore it in the reset testing module logic.
*/
_previousErrorOnUnknownElementsOption;
/**
* Stores the previous "Error on unknown properties" option value,
* allowing to restore it in the reset testing module logic.
*/
_previousErrorOnUnknownPropertiesOption;
/**
* Initialize the environment for testing with a compiler factory, a PlatformRef, and an
* angular module. These are common to every test in the suite.
*
* This may only be called once, to set up the common providers for the current test
* suite on the current platform. If you absolutely need to change the providers,
* first use `resetTestEnvironment`.
*
* Test modules and platforms for individual platforms are available from
* '@angular/<platform_name>/testing'.
*
* @publicApi
*/
static initTestEnvironment(ngModule, platform, options) {
const testBed = TestBedImpl.INSTANCE;
testBed.initTestEnvironment(ngModule, platform, options);
return testBed;
}
/**
* Reset the providers for the test injector.
*
* @publicApi
*/
static resetTestEnvironment() {
TestBedImpl.INSTANCE.resetTestEnvironment();
}
static configureCompiler(config) {
return TestBedImpl.INSTANCE.configureCompiler(config);
}
/**
* Allows overriding default providers, directives, pipes, modules of the test injector,
* which are defined in test_injector.js
*/
static configureTestingModule(moduleDef) {
return TestBedImpl.INSTANCE.configureTestingModule(moduleDef);
}
/**
* Compile components with a `templateUrl` for the test's NgModule.
* It is necessary to call this function
* as fetching urls is asynchronous.
*/
static compileComponents() {
return TestBedImpl.INSTANCE.compileComponents();
}
static overrideModule(ngModule, override) {
return TestBedImpl.INSTANCE.overrideModule(ngModule, override);
}
static overrideComponent(component, override) {
return TestBedImpl.INSTANCE.overrideComponent(component, override);
}
static overrideDirective(directive, override) {
return TestBedImpl.INSTANCE.overrideDirective(directive, override);
}
static overridePipe(pipe, override) {
return TestBedImpl.INSTANCE.overridePipe(pipe, override);
}
static overrideTemplate(component, template) {
return TestBedImpl.INSTANCE.overrideTemplate(component, template);
}
/**
* Overrides the template of the given component, compiling the template
* in the context of the TestingModule.
*
* Note: This works for JIT and AOTed components as well.
*/
static overrideTemplateUsingTestingModule(component, template) {
return TestBedImpl.INSTANCE.overrideTemplateUsingTestingModule(component, template);
}
static overrideProvider(token, provider) {
return TestBedImpl.INSTANCE.overrideProvider(token, provider);
}
static inject(token, notFoundValue, flags) {
return TestBedImpl.INSTANCE.inject(token, notFoundValue, _convertToBitFlags(flags));
}
/** @deprecated from v9.0.0 use TestBed.inject */
static get(token, notFoundValue = Injector.THROW_IF_NOT_FOUND, flags = InjectFlags.Default) {
return TestBedImpl.INSTANCE.inject(token, notFoundValue, flags);
}
/**
* Runs the given function in the `EnvironmentInjector` context of `TestBed`.
*
* @see {@link EnvironmentInjector#runInContext}
*/
static runInInjectionContext(fn) {
return TestBedImpl.INSTANCE.runInInjectionContext(fn);
}
static createComponent(component) {
return TestBedImpl.INSTANCE.createComponent(component);
}
static resetTestingModule() {
return TestBedImpl.INSTANCE.resetTestingModule();
}
static execute(tokens, fn, context) {
return TestBedImpl.INSTANCE.execute(tokens, fn, context);
}
static get platform() {
return TestBedImpl.INSTANCE.platform;
}
static get ngModule() {
return TestBedImpl.INSTANCE.ngModule;
}
static flushEffects() {
return TestBedImpl.INSTANCE.flushEffects();
}
// Properties
platform = null;
ngModule = null;
_compiler = null;
_testModuleRef = null;
_activeFixtures = [];
/**
* Internal-only flag to indicate whether a module
* scoping queue has been checked and flushed already.
* @docs-private
*/
globalCompilationChecked = false;
/**
* Initialize the environment for testing with a compiler factory, a PlatformRef, and an
* angular module. These are common to every test in the suite.
*
* This may only be called once, to set up the common providers for the current test
* suite on the current platform. If you absolutely need to change the providers,
* first use `resetTestEnvironment`.
*
* Test modules and platforms for individual platforms are available from
* '@angular/<platform_name>/testing'.
*
* @publicApi
*/
initTestEnvironment(ngModule, platform, options) {
if (this.platform || this.ngModule) {
throw new Error('Cannot set base providers because it has already been called');
}
TestBedImpl._environmentTeardownOptions = options?.teardown;
TestBedImpl._environmentErrorOnUnknownElementsOption = options?.errorOnUnknownElements;
TestBedImpl._environmentErrorOnUnknownPropertiesOption = options?.errorOnUnknownProperties;
this.platform = platform;
this.ngModule = ngModule;
this._compiler = new TestBedCompiler(this.platform, this.ngModule);
// TestBed does not have an API which can reliably detect the start of a test, and thus could be
// used to track the state of the NgModule registry and reset it correctly. Instead, when we
// know we're in a testing scenario, we disable the check for duplicate NgModule registration
// completely.
_setAllowDuplicateNgModuleIdsForTest(true);
}
/**
* Reset the providers for the test injector.
*
* @publicApi
*/
resetTestEnvironment() {
this.resetTestingModule();
this._compiler = null;
this.platform = null;
this.ngModule = null;
TestBedImpl._environmentTeardownOptions = undefined;
_setAllowDuplicateNgModuleIdsForTest(false);
}
resetTestingModule() {
this.checkGlobalCompilationFinished();
_resetCompiledComponents();
if (this._compiler !== null) {
this.compiler.restoreOriginalState();
}
this._compiler = new TestBedCompiler(this.platform, this.ngModule);
// Restore the previous value of the "error on unknown elements" option
_setUnknownElementStrictMode(this._previousErrorOnUnknownElementsOption ?? THROW_ON_UNKNOWN_ELEMENTS_DEFAULT);
// Restore the previous value of the "error on unknown properties" option
_setUnknownPropertyStrictMode(this._previousErrorOnUnknownPropertiesOption ?? THROW_ON_UNKNOWN_PROPERTIES_DEFAULT);
// We have to chain a couple of try/finally blocks, because each step can
// throw errors and we don't want it to interrupt the next step and we also
// want an error to be thrown at the end.
try {
this.destroyActiveFixtures();
}
finally {
try {
if (this.shouldTearDownTestingModule()) {
this.tearDownTestingModule();
}
}
finally {
this._testModuleRef = null;
this._instanceTeardownOptions = undefined;
this._instanceErrorOnUnknownElementsOption = undefined;
this._instanceErrorOnUnknownPropertiesOption = undefined;
this._instanceDeferBlockBehavior = DEFER_BLOCK_DEFAULT_BEHAVIOR;
}
}
return this;
}
configureCompiler(config) {
if (config.useJit != null) {
throw new Error('JIT compiler is not configurable via TestBed APIs.');
}
if (config.providers !== undefined) {
this.compiler.setCompilerProviders(config.providers);
}
return this;
}
configureTestingModule(moduleDef) {
this.assertNotInstantiated('TestBed.configureTestingModule', 'configure the test module');
// Trigger module scoping queue flush before executing other TestBed operations in a test.
// This is needed for the first test invocation to ensure that globally declared modules have
// their components scoped properly. See the `checkGlobalCompilationFinished` function
// description for additional info.
this.checkGlobalCompilationFinished();
// Always re-assign the options, even if they're undefined.
// This ensures that we don't carry them between tests.
this._instanceTeardownOptions = moduleDef.teardown;
this._instanceErrorOnUnknownElementsOption = moduleDef.errorOnUnknownElements;
this._instanceErrorOnUnknownPropertiesOption = moduleDef.errorOnUnknownProperties;
this._instanceDeferBlockBehavior = moduleDef.deferBlockBehavior ?? DEFER_BLOCK_DEFAULT_BEHAVIOR;
// Store the current value of the strict mode option,
// so we can restore it later
this._previousErrorOnUnknownElementsOption = _getUnknownElementStrictMode();
_setUnknownElementStrictMode(this.shouldThrowErrorOnUnknownElements());
this._previousErrorOnUnknownPropertiesOption = _getUnknownPropertyStrictMode();
_setUnknownPropertyStrictMode(this.shouldThrowErrorOnUnknownProperties());
this.compiler.configureTestingModule(moduleDef);
return this;
}
compileComponents() {
return this.compiler.compileComponents();
}
inject(token, notFoundValue, flags) {
if (token === TestBed) {
return this;
}
const UNDEFINED = {};
const result = this.testModuleRef.injector.get(token, UNDEFINED, _convertToBitFlags(flags));
return result === UNDEFINED
? this.compiler.injector.get(token, notFoundValue, flags)
: result;
}
/** @deprecated from v9.0.0 use TestBed.inject */
get(token, notFoundValue = Injector.THROW_IF_NOT_FOUND, flags = InjectFlags.Default) {
return this.inject(token, notFoundValue, flags);
}
runInInjectionContext(fn) {
return runInInjectionContext(this.inject(EnvironmentInjector), fn);
}
execute(tokens, fn, context) {
const params = tokens.map((t) => this.inject(t));
return fn.apply(context, params);
}
overrideModule(ngModule, override) {
this.assertNotInstantiated('overrideModule', 'override module metadata');
this.compiler.overrideModule(ngModule, override);
return this;
}
overrideComponent(component, override) {
this.assertNotInstantiated('overrideComponent', 'override component metadata');
this.compiler.overrideComponent(component, override);
return this;
}
overrideTemplateUsingTestingModule(component, template) {
this.assertNotInstantiated('TestBed.overrideTemplateUsingTestingModule', 'Cannot override template when the test module has already been instantiated');
this.compiler.overrideTemplateUsingTestingModule(component, template);
return this;
}
overrideDirective(directive, override) {
this.assertNotInstantiated('overrideDirective', 'override directive metadata');
this.compiler.overrideDirective(directive, override);
return this;
}
overridePipe(pipe, override) {
this.assertNotInstantiated('overridePipe', 'override pipe metadata');
this.compiler.overridePipe(pipe, override);
return this;
}
/**
* Overwrites all providers for the given token with the given provider definition.
*/
overrideProvider(token, provider) {
this.assertNotInstantiated('overrideProvider', 'override provider');
this.compiler.overrideProvider(token, provider);
return this;
}
overrideTemplate(component, template) {
return this.overrideComponent(component, { set: { template, templateUrl: null } });
}
createComponent(type) {
const testComponentRenderer = this.inject(TestComponentRenderer);
const rootElId = `root${_nextRootElementId++}`;
testComponentRenderer.insertRootElement(rootElId);
if (_getAsyncClassMetadataFn(type)) {
throw new Error(`Component '${type.name}' has unresolved metadata. ` +
`Please call \`await TestBed.compileComponents()\` before running this test.`);
}
const componentDef = type.ɵcmp;
if (!componentDef) {
throw new Error(`It looks like '${_stringify(type)}' has not been compiled.`);
}
const componentFactory = new _Render3ComponentFactory(componentDef);
const initComponent = () => {
const componentRef = componentFactory.create(Injector.NULL, [], `#${rootElId}`, this.testModuleRef);
return this.runInInjectionContext(() => new ComponentFixture(componentRef));
};
const noNgZone = this.inject(ComponentFixtureNoNgZone, false);
const ngZone = noNgZone ? null : this.inject(NgZone, null);
const fixture = ngZone ? ngZone.run(initComponent) : initComponent();
this._activeFixtures.push(fixture);
return fixture;
}
/**
* @internal strip this from published d.ts files due to
* https://github.com/microsoft/TypeScript/issues/36216
*/
get compiler() {
if (this._compiler === null) {
throw new Error(`Need to call TestBed.initTestEnvironment() first`);
}
return this._compiler;
}
/**
* @internal strip this from published d.ts files due to
* https://github.com/microsoft/TypeScript/issues/36216
*/
get testModuleRef() {
if (this._testModuleRef === null) {
this._testModuleRef = this.compiler.finalize();
}
return this._testModuleRef;
}
assertNotInstantiated(methodName, methodDescription) {
if (this._testModuleRef !== null) {
throw new Error(`Cannot ${methodDescription} when the test module has already been instantiated. ` +
`Make sure you are not using \`inject\` before \`${methodName}\`.`);
}
}
/**
* Check whether the module scoping queue should be flushed, and flush it if needed.
*
* When the TestBed is reset, it clears the JIT module compilation queue, cancelling any
* in-progress module compilation. This creates a potential hazard - the very first time the
* TestBed is initialized (or if it's reset without being initialized), there may be pending
* compilations of modules declared in global scope. These compilations should be finished.
*
* To ensure that globally declared modules have their components scoped properly, this function
* is called whenever TestBed is initialized or reset. The _first_ time that this happens, prior
* to any other operations, the scoping queue is flushed.
*/
checkGlobalCompilationFinished() {
// Checking _testNgModuleRef is null should not be necessary, but is left in as an additional
// guard that compilations queued in tests (after instantiation) are never flushed accidentally.
if (!this.globalCompilationChecked && this._testModuleRef === null) {
_flushModuleScopingQueueAsMuchAsPossible();
}
this.globalCompilationChecked = true;
}
destroyActiveFixtures() {
let errorCount = 0;
this._activeFixtures.forEach((fixture) => {
try {
fixture.destroy();
}
catch (e) {
errorCount++;
console.error('Error during cleanup of component', {
component: fixture.componentInstance,
stacktrace: e,
});
}
});
this._activeFixtures = [];
if (errorCount > 0 && this.shouldRethrowTeardownErrors()) {
throw Error(`${errorCount} ${errorCount === 1 ? 'component' : 'components'} ` +
`threw errors during cleanup`);
}
}
shouldRethrowTeardownErrors() {
const instanceOptions = this._instanceTeardownOptions;
const environmentOptions = TestBedImpl._environmentTeardownOptions;
// If the new teardown behavior hasn't been configured, preserve the old behavior.
if (!instanceOptions && !environmentOptions) {
return TEARDOWN_TESTING_MODULE_ON_DESTROY_DEFAULT;
}
// Otherwise use the configured behavior or default to rethrowing.
return (instanceOptions?.rethrowErrors ??
environmentOptions?.rethrowErrors ??
this.shouldTearDownTestingModule());
}
shouldThrowErrorOnUnknownElements() {
// Check if a configuration has been provided to throw when an unknown element is found
return (this._instanceErrorOnUnknownElementsOption ??
TestBedImpl._environmentErrorOnUnknownElementsOption ??
THROW_ON_UNKNOWN_ELEMENTS_DEFAULT);
}
shouldThrowErrorOnUnknownProperties() {
// Check if a configuration has been provided to throw when an unknown property is found
return (this._instanceErrorOnUnknownPropertiesOption ??
TestBedImpl._environmentErrorOnUnknownPropertiesOption ??
THROW_ON_UNKNOWN_PROPERTIES_DEFAULT);
}
shouldTearDownTestingModule() {
return (this._instanceTeardownOptions?.destroyAfterEach ??
TestBedImpl._environmentTeardownOptions?.destroyAfterEach ??
TEARDOWN_TESTING_MODULE_ON_DESTROY_DEFAULT);
}
getDeferBlockBehavior() {
return this._instanceDeferBlockBehavior;
}
tearDownTestingModule() {
// If the module ref has already been destroyed, we won't be able to get a test renderer.
if (this._testModuleRef === null) {
return;
}
// Resolve the renderer ahead of time, because we want to remove the root elements as the very
// last step, but the injector will be destroyed as a part of the module ref destruction.
const testRenderer = this.inject(TestComponentRenderer);
try {
this._testModuleRef.destroy();
}
catch (e) {
if (this.shouldRethrowTeardownErrors()) {
throw e;
}
else {
console.error('Error during cleanup of a testing module', {
component: this._testModuleRef.instance,
stacktrace: e,
});
}
}
finally {
testRenderer.removeAllRootElements?.();
}
}
/**
* Execute any pending effects.
*
* @developerPreview
*/
flushEffects() {
this.inject(_MicrotaskEffectScheduler).flush();
this.inject(_EffectScheduler).flush();
}
}
/**
* @description
* Configures and initializes environment for unit testing and provides methods for
* creating components and services in unit tests.
*
* `TestBed` is the primary api for writing unit tests for Angular applications and libraries.
*
* @publicApi
*/
const TestBed = TestBedImpl;
/**
* Allows injecting dependencies in `beforeEach()` and `it()`. Note: this function
* (imported from the `@angular/core/testing` package) can **only** be used to inject dependencies
* in tests. To inject dependencies in your application code, use the [`inject`](api/core/inject)
* function from the `@angular/core` package instead.
*
* Example:
*
* ```ts
* beforeEach(inject([Dependency, AClass], (dep, object) => {
* // some code that uses `dep` and `object`
* // ...
* }));
*
* it('...', inject([AClass], (object) => {
* object.doSomething();
* expect(...);
* })
* ```
*
* @publicApi
*/
function inject(tokens, fn) {
const testBed = TestBedImpl.INSTANCE;
// Not using an arrow function to preserve context passed from call site
return function () {
return testBed.execute(tokens, fn, this);
};
}
/**
* @publicApi
*/
class InjectSetupWrapper {
_moduleDef;
constructor(_moduleDef) {
this._moduleDef = _moduleDef;
}
_addModule() {
const moduleDef = this._moduleDef();
if (moduleDef) {
TestBedImpl.configureTestingModule(moduleDef);
}
}
inject(tokens, fn) {
const self = this;
// Not using an arrow function to preserve context passed from call site
return function () {
self._addModule();
return inject(tokens, fn).call(this);
};
}
}
function withModule(moduleDef, fn) {
if (fn) {
// Not using an arrow function to preserve context passed from call site
return function () {
const testBed = TestBedImpl.INSTANCE;
if (moduleDef) {
testBed.configureTestingModule(moduleDef);
}
return fn.apply(this);
};
}
return new InjectSetupWrapper(() => moduleDef);
}
/**
* Public Test Library for unit testing Angular applications. Assumes that you are running
* with Jasmine, Mocha, or a similar framework which exports a beforeEach function and
* allows tests to be asynchronous by either returning a promise or using a 'done' parameter.
*/
// Reset the test providers and the fake async zone before each test.
// We keep a guard because somehow this file can make it into a bundle and be executed
// beforeEach is only defined when executing the tests
globalThis.beforeEach?.(getCleanupHook(false));
// We provide both a `beforeEach` and `afterEach`, because the updated behavior for
// tearing down the module is supposed to run after the test so that we can associate
// teardown errors with the correct test.
// We keep a guard because somehow this file can make it into a bundle and be executed
// afterEach is only defined when executing the tests
globalThis.afterEach?.(getCleanupHook(true));
function getCleanupHook(expectedTeardownValue) {
return () => {
const testBed = TestBedImpl.INSTANCE;
if (testBed.shouldTearDownTestingModule() === expectedTeardownValue) {
testBed.resetTestingModule();
resetFakeAsyncZoneIfExists();
}
};
}
/**
* This API should be removed. But doing so seems to break `google3` and so it requires a bit of
* investigation.
*
* A work around is to mark it as `@codeGenApi` for now and investigate later.
*
* @codeGenApi
*/
// TODO(iminar): Remove this code in a safe way.
const __core_private_testing_placeholder__ = '';
/**
* Fake implementation of user agent history and navigation behavior. This is a
* high-fidelity implementation of browser behavior that attempts to emulate
* things like traversal delay.
*/
class FakeNavigation {
/**
* The fake implementation of an entries array. Only same-document entries
* allowed.
*/
entriesArr = [];
/**
* The current active entry index into `entriesArr`.
*/
currentEntryIndex = 0;
/**
* The current navigate event.
* @internal
*/
navigateEvent = null;
/**
* A Map of pending traversals, so that traversals to the same entry can be
* re-used.
*/
traversalQueue = new Map();
/**
* A Promise that resolves when the previous traversals have finished. Used to
* simulate the cross-process communication necessary for traversals.
*/
nextTraversal = Promise.resolve();
/**
* A prospective current active entry index, which includes unresolved
* traversals. Used by `go` to determine where navigations are intended to go.
*/
prospectiveEntryIndex = 0;
/**
* A test-only option to make traversals synchronous, rather than emulate
* cross-process communication.
*/
synchronousTraversals = false;
/** Whether to allow a call to setInitialEntryForTesting. */
canSetInitialEntry = true;
/**
* `EventTarget` to dispatch events.
* @internal
*/
eventTarget;
/** The next unique id for created entries. Replace recreates this id. */
nextId = 0;
/** The next unique key for created entries. Replace inherits this id. */
nextKey = 0;
/** Whether this fake is disposed. */
disposed = false;
/** Equivalent to `navigation.currentEntry`. */
get currentEntry() {
return this.entriesArr[this.currentEntryIndex];
}
get canGoBack() {
return this.currentEntryIndex > 0;
}
get canGoForward() {
return this.currentEntryIndex < this.entriesArr.length - 1;
}
createEventTarget;
_window;
get window() {
return this._window;
}
constructor(doc, startURL) {
this.createEventTarget = () => {
try {
// `document.createElement` because NodeJS `EventTarget` is
// incompatible with Domino's `Event`. That is, attempting to
// dispatch an event created by Domino's patched `Event` will
// throw an error since it is not an instance of a real Node
// `Event`.
return doc.createElement('div');
}
catch {
// Fallback to a basic EventTarget if `document.createElement`
// fails. This can happen with tests that pass in a value for document
// that is stubbed.
return new EventTarget();
}
};
this._window = document.defaultView ?? this.createEventTarget();
this.eventTarget = this.createEventTarget();
// First entry.
this.setInitialEntryForTesting(startURL);
}
/**
* Sets the initial entry.
*/
setInitialEntryForTesting(url, options = { historyState: null }) {
if (!this.canSetInitialEntry) {
throw new Error('setInitialEntryForTesting can only be called before any ' + 'navigation has occurred');
}
const currentInitialEntry = this.entriesArr[0];
this.entriesArr[0] = new FakeNavigationHistoryEntry(this.eventTarget, new URL(url).toString(), {
index: 0,
key: currentInitialEntry?.key ?? String(this.nextKey++),
id: currentInitialEntry?.id ?? String(this.nextId++),
sameDocument: true,
historyState: options?.historyState,
state: options.state,
});
}
/** Returns whether the initial entry is still eligible to be set. */
canSetInitialEntryForTesting() {
return this.canSetInitialEntry;
}
/**
* Sets whether to emulate traversals as synchronous rather than
* asynchronous.
*/
setSynchronousTraversalsForTesting(synchronousTraversals) {
this.synchronousTraversals = synchronousTraversals;
}
/** Equivalent to `navigation.entries()`. */
entries() {
return this.entriesArr.slice();
}
/** Equivalent to `navigation.navigate()`. */
navigate(url, options) {
const fromUrl = new URL(this.currentEntry.url);
const toUrl = new URL(url, this.currentEntry.url);
let navigationType;
if (!options?.history || options.history === 'auto') {
// Auto defaults to push, but if the URLs are the same, is a replace.
if (fromUrl.toString() === toUrl.toString()) {
navigationType = 'replace';
}
else {
navigationType = 'push';
}
}
else {
navigationType = options.history;
}
const hashChange = isHashChange(fromUrl, toUrl);
const destination = new FakeNavigationDestination({
url: toUrl.toString(),
state: options?.state,
sameDocument: hashChange,
historyState: null,
});
const result = new InternalNavigationResult(this);
const intercepted = this.userAgentNavigate(destination, result, {
navigationType,
cancelable: true,
canIntercept: true,
// Always false for navigate().
userInitiated: false,
hashChange,
info: options?.info,
});
if (!intercepted) {
this.updateNavigationEntriesForSameDocumentNavigation(this.navigateEvent);
}
return {
committed: result.committed,
finished: result.finished,
};
}
/** Equivalent to `history.pushState()`. */
pushState(data, title, url) {
this.pushOrReplaceState('push', data, title, url);
}
/** Equivalent to `history.replaceState()`. */
replaceState(data, title, url) {
this.pushOrReplaceState('replace', data, title, url);
}
pushOrReplaceState(navigationType, data, _title, url) {
const fromUrl = new URL(this.currentEntry.url);
const toUrl = url ? new URL(url, this.currentEntry.url) : fromUrl;
const hashChange = isHashChange(fromUrl, toUrl);
const destination = new FakeNavigationDestination({
url: toUrl.toString(),
sameDocument: true,
historyState: data,
});
const result = new InternalNavigationResult(this);
const intercepted = this.userAgentNavigate(destination, result, {
navigationType,
cancelable: true,
canIntercept: true,
// Always false for pushState() or replaceState().
userInitiated: false,
hashChange,
});
if (intercepted) {
return;
}
this.updateNavigationEntriesForSameDocumentNavigation(this.navigateEvent);
}
/** Equivalent to `navigation.traverseTo()`. */
traverseTo(key, options) {
const fromUrl = new URL(this.currentEntry.url);
const entry = this.findEntry(key);
if (!entry) {
const domException = new DOMException('Invalid key', 'InvalidStateError');
const committed = Promise.reject(domException);
const finished = Promise.reject(domException);
committed.catch(() => { });
finished.catch(() => { });
return {
committed,
finished,
};
}
if (entry === this.currentEntry) {
return {
committed: Promise.resolve(this.currentEntry),
finished: Promise.resolve(this.currentEntry),
};
}
if (this.traversalQueue.has(entry.key)) {
const existingResult = this.traversalQueue.get(entry.key);
return {
committed: existingResult.committed,
finished: existingResult.finished,
};
}
const hashChange = isHashChange(fromUrl, new URL(entry.url, this.currentEntry.url));
const destination = new FakeNavigationDestination({
url: entry.url,
state: entry.getState(),
historyState: entry.getHistoryState(),
key: entry.key,
id: entry.id,
index: entry.index,
sameDocument: entry.sameDocument,
});
this.prospectiveEntryIndex = entry.index;
const result = new InternalNavigationResult(this);
this.traversalQueue.set(entry.key, result);
this.runTraversal(() => {
this.traversalQueue.delete(entry.key);
const intercepted = this.userAgentNavigate(destination, result, {
navigationType: 'traverse',
cancelable: true,
canIntercept: true,
// Always false for traverseTo().
userInitiated: false,
hashChange,
info: options?.info,
});
if (!intercepted) {
this.userAgentTraverse(this.navigateEvent);
}
});
return {
committed: result.committed,
finished: result.finished,
};
}
/** Equivalent to `navigation.back()`. */
back(options) {
if (this.currentEntryIndex === 0) {
const domException = new DOMException('Cannot go back', 'InvalidStateError');
const committed = Promise.reject(domException);
const finished = Promise.reject(domException);
committed.catch(() => { });
finished.catch(() => { });
return {
committed,
finished,
};
}
const entry = this.entriesArr[this.currentEntryIndex - 1];
return this.traverseTo(entry.key, options);
}
/** Equivalent to `navigation.forward()`. */
forward(options) {
if (this.currentEntryIndex === this.entriesArr.length - 1) {
const domException = new DOMException('Cannot go forward', 'InvalidStateError');
const committed = Promise.reject(domException);
const finished = Promise.reject(domException);
committed.catch(() => { });
finished.catch(() => { });
return {
committed,
finished,
};
}
const entry = this.entriesArr[this.currentEntryIndex + 1];
return this.traverseTo(entry.key, options);
}
/**
* Equivalent to `history.go()`.
* Note that this method does not actually work precisely to how Chrome
* does, instead choosing a simpler model with less unexpected behavior.
* Chrome has a few edge case optimizations, for instance with repeated
* `back(); forward()` chains it collapses certain traversals.
*/
go(direction) {
const targetIndex = this.prospectiveEntryIndex + direction;
if (targetIndex >= this.entriesArr.length || targetIndex < 0) {
return;
}
this.prospectiveEntryIndex = targetIndex;
this.runTraversal(() => {
// Check again that destination is in the entries array.
if (targetIndex >= this.entriesArr.length || targetIndex < 0) {
return;
}
const fromUrl = new URL(this.currentEntry.url);
const entry = this.entriesArr[targetIndex];
const hashChange = isHashChange(fromUrl, new URL(entry.url, this.currentEntry.url));
const destination = new FakeNavigationDestination({
url: entry.url,
state: entry.getState(),
historyState: entry.getHistoryState(),
key: entry.key,
id: entry.id,
index: entry.index,
sameDocument: entry.sameDocument,
});
const result = new InternalNavigationResult(this);
const intercepted = this.userAgentNavigate(destination, result, {
navigationType: 'traverse',
cancelable: true,
canIntercept: true,
// Always false for go().
userInitiated: false,
hashChange,
});
if (!intercepted) {
this.userAgentTraverse(this.navigateEvent);
}
});
}
/** Runs a traversal synchronously or asynchronously */
runTraversal(traversal) {
if (this.synchronousTraversals) {
traversal();
return;
}
// Each traversal occupies a single timeout resolution.
// This means that Promises added to commit and finish should resolve
// before the next traversal.
this.nextTraversal = this.nextTraversal.then(() => {
return new Promise((resolve) => {
setTimeout(() => {
resolve();
traversal();
});
});
});
}
/** Equivalent to `navigation.addEventListener()`. */
addEventListener(type, callback, options) {
this.eventTarget.addEventListener(type, callback, options);
}
/** Equivalent to `navigation.removeEventListener()`. */
removeEventListener(type, callback, options) {
this.eventTarget.removeEventListener(type, callback, options);
}
/** Equivalent to `navigation.dispatchEvent()` */
dispatchEvent(event) {
return this.eventTarget.dispatchEvent(event);
}
/** Cleans up resources. */
dispose() {
// Recreate eventTarget to release current listeners.
this.eventTarget = this.createEventTarget();
this.disposed = true;
}
/** Returns whether this fake is disposed. */
isDisposed() {
return this.disposed;
}
/**
* Implementation for all navigations and traversals.
* @returns true if the event was intercepted, otherwise false
*/
userAgentNavigate(destination, result, options) {
// The first navigation should disallow any future calls to set the initial
// entry.
this.canSetInitialEntry = false;
if (this.navigateEvent) {
this.navigateEvent.cancel(new DOMException('Navigation was aborted', 'AbortError'));
this.navigateEvent = null;
}
return dispatchNavigateEvent({
navigationType: options.navigationType,
cancelable: options.cancelable,
canIntercept: options.canIntercept,
userInitiated: options.userInitiated,
hashChange: options.hashChange,
signal: result.signal,
destination,
info: options.info,
sameDocument: destination.sameDocument,
result,
});
}
/**
* Implementation for a push or replace navigation.
* https://whatpr.org/html/10919/browsing-the-web.html#url-and-history-update-steps
* https://whatpr.org/html/10919/nav-history-apis.html#update-the-navigation-api-entries-for-a-same-document-navigation
* @internal
*/
urlAndHistoryUpdateSteps(navigateEvent) {
this.updateNavigationEntriesForSameDocumentNavigation(navigateEvent);
}
/**
* Implementation for a traverse navigation.
*
* https://whatpr.org/html/10919/browsing-the-web.html#apply-the-traverse-history-step
* ...
* > Let updateDocument be an algorithm step which performs update document for history step application given targetEntry's document, targetEntry, changingNavigableContinuation's update-only, scriptHistoryLength, scriptHistoryIndex, navigationType, entriesForNavigationAPI, and previousEntry.
* > If targetEntry's document is equal to displayedDocument, then perform updateDocument.
* https://whatpr.org/html/10919/browsing-the-web.html#update-document-for-history-step-application
* which then goes to https://whatpr.org/html/10919/nav-history-apis.html#update-the-navigation-api-entries-for-a-same-document-navigation
* @internal
*/
userAgentTraverse(navigateEvent) {
const oldUrl = this.currentEntry.url;
this.updateNavigationEntriesForSameDocumentNavigation(navigateEvent);
// Happens as part of "updating the document" steps https://whatpr.org/html/10919/browsing-the-web.html#updating-the-document
const popStateEvent = createPopStateEvent({
state: navigateEvent.destination.getHistoryState(),
});
this._window.dispatchEvent(popStateEvent);
if (navigateEvent.hashChange) {
const hashchangeEvent = createHashChangeEvent(oldUrl, this.currentEntry.url);
this._window.dispatchEvent(hashchangeEvent);
}
}
/**
* https://whatpr.org/html/10919/nav-history-apis.html#update-the-navigation-api-entries-for-a-same-document-navigation
* @internal
*/
updateNavigationEntriesForSameDocumentNavigation({ destination, navigationType, result, }) {
const oldCurrentNHE = this.currentEntry;
const disposedNHEs = [];
if (navigationType === 'traverse') {
this.currentEntryIndex = destination.index;
if (this.currentEntryIndex === -1) {
throw new Error('unexpected current entry index');
}
}
else if (navigationType === 'push') {
this.currentEntryIndex++;
this.prospectiveEntryIndex = this.currentEntryIndex; // prospectiveEntryIndex isn't in the spec but is an implementation detail
disposedNHEs.push(...this.entriesArr.splice(this.currentEntryIndex));
}
else if (navigationType === 'replace') {
disposedNHEs.push(oldCurrentNHE);
}
if (navigationType === 'push' || navigationType === 'replace') {
const index = this.currentEntryIndex;
const key = navigationType === 'push' ? String(this.nextKey++) : this.currentEntry.key;
const newNHE = new FakeNavigationHistoryEntry(this.eventTarget, destination.url, {
id: String(this.nextId++),
key,
index,
sameDocument: true,
state: destination.getState(),
historyState: destination.getHistoryState(),
});
this.entriesArr[this.currentEntryIndex] = newNHE;
}
result.committedResolve(this.currentEntry);
const currentEntryChangeEvent = createFakeNavigationCurrentEntryChangeEvent({
from: oldCurrentNHE,
navigationType: navigationType,
});
this.eventTarget.dispatchEvent(currentEntryChangeEvent);
for (const disposedNHE of disposedNHEs) {
disposedNHE.dispose();
}
}
/** Utility method for finding entries with the given `key`. */
findEntry(key) {
for (const entry of this.entriesArr) {
if (entry.key === key)
return entry;
}
return undefined;
}
set onnavigate(
// tslint:disable-next-line:no-any
_handler) {
throw new Error('unimplemented');
}
// tslint:disable-next-line:no-any
get onnavigate() {
throw new Error('unimplemented');
}
set oncurrententrychange(_handler) {
throw new Error('unimplemented');
}
get oncurrententrychange() {
throw new Error('unimplemented');
}
set onnavigatesuccess(
// tslint:disable-next-line:no-any
_handler) {
throw new Error('unimplemented');
}
// tslint:disable-next-line:no-any
get onnavigatesuccess() {
throw new Error('unimplemented');
}
set onnavigateerror(
// tslint:disable-next-line:no-any
_handler) {
throw new Error('unimplemented');
}
// tslint:disable-next-line:no-any
get onnavigateerror() {
throw new Error('unimplemented');
}
_transition = null;
/** @internal */
set transition(t) {
this._transition = t;
}
get transition() {
return this._transition;
}
updateCurrentEntry(_options) {
throw new Error('unimplemented');
}
reload(_options) {
throw new Error('unimplemented');
}
}
/**
* Fake equivalent of `NavigationHistoryEntry`.
*/
class FakeNavigationHistoryEntry {
eventTarget;
url;
sameDocument;
id;
key;
index;
state;
historyState;
// tslint:disable-next-line:no-any
ondispose = null;
constructor(eventTarget, url, { id, key, index, sameDocument, state, historyState, }) {
this.eventTarget = eventTarget;
this.url = url;
this.id = id;
this.key = key;
this.index = index;
this.sameDocument = sameDocument;
this.state = state;
this.historyState = historyState;
}
getState() {
// Budget copy.
return this.state ? JSON.parse(JSON.stringify(this.state)) : this.state;
}
getHistoryState() {
// Budget copy.
return this.historyState
? JSON.parse(JSON.stringify(this.historyState))
: this.historyState;
}
addEventListener(type, callback, options) {
this.eventTarget.addEventListener(type, callback, options);
}
removeEventListener(type, callback, options) {
this.eventTarget.removeEventListener(type, callback, options);
}
dispatchEvent(event) {
return this.eventTarget.dispatchEvent(event);
}
/** internal */
dispose() {
const disposeEvent = new Event('disposed');
this.dispatchEvent(disposeEvent);
// release current listeners
this.eventTarget = null;
}
}
/**
* Create a fake equivalent of `NavigateEvent`. This is not a class because ES5
* transpiled JavaScript cannot extend native Event.
*
* https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigate-event-firing
*/
function dispatchNavigateEvent({ cancelable, canIntercept, userInitiated, hashChange, navigationType, signal, destination, info, sameDocument, result, }) {
const { navigation } = result;
const event = new Event('navigate', { bubbles: false, cancelable });
event.focusResetBehavior = null;
event.scrollBehavior = null;
event.interceptionState = 'none';
event.canIntercept = canIntercept;
event.userInitiated = userInitiated;
event.hashChange = hashChange;
event.navigationType = navigationType;
event.signal = signal;
event.destination = destination;
event.info = info;
event.downloadRequest = null;
event.formData = null;
event.result = result;
event.sameDocument = sameDocument;
let precommitHandlers = [];
let handlers = [];
// https://whatpr.org/html/10919/nav-history-apis.html#dom-navigateevent-intercept
event.intercept = function (options) {
if (!this.canIntercept) {
throw new DOMException(`Cannot intercept when canIntercept is 'false'`, 'SecurityError');
}
this.interceptionState = 'intercepted';
event.sameDocument = true;
const precommitHandler = options?.precommitHandler;
if (precommitHandler) {
if (!this.cancelable) {
throw new DOMException(`Cannot use precommitHandler when cancelable is 'false'`, 'InvalidStateError');
}
precommitHandlers.push(precommitHandler);
}
if (event.interceptionState !== 'none' && event.interceptionState !== 'intercepted') {
throw new Error('Event interceptionState should be "none" or "intercepted"');
}
event.interceptionState = 'intercepted';
const handler = options?.handler;
if (handler) {
handlers.push(handler);
}
// override old options with new ones. UA _may_ report a console warning if new options differ from previous
event.focusResetBehavior = options?.focusReset ?? event.focusResetBehavior;
event.scrollBehavior = options?.scroll ?? event.scrollBehavior;
};
// https://whatpr.org/html/10919/nav-history-apis.html#dom-navigateevent-scroll
event.scroll = function () {
if (event.interceptionState !== 'committed') {
throw new DOMException(`Failed to execute 'scroll' on 'NavigateEvent': scroll() must be ` +
`called after commit() and interception options must specify manual scroll.`, 'InvalidStateError');
}
processScrollBehavior(event);
};
// https://whatpr.org/html/10919/nav-history-apis.html#dom-navigationprecommitcontroller-redirect
function redirect(url) {
if (event.interceptionState === 'none') {
throw new Error('cannot redirect when event is not intercepted');
}
if (event.interceptionState !== 'intercepted') {
throw new DOMException(`cannot redirect when event is not in 'intercepted' state`, 'InvalidStateError');
}
if (event.navigationType !== 'push' && event.navigationType !== 'replace') {
throw new DOMException(`cannot redirect when navigationType is not 'push' or 'replace`, 'InvalidStateError');
}
const toUrl = new URL(url, navigation.currentEntry.url);
event.destination.url = toUrl.href;
}
// https://whatpr.org/html/10919/nav-history-apis.html#inner-navigate-event-firing-algorithm
// "Let commit be the following steps:"
function commit() {
if (result.signal.aborted) {
return;
}
if (event.interceptionState !== 'none') {
event.interceptionState = 'committed';
if (!navigation.currentEntry) {
throw new Error('from history entry should not be null');
}
navigation.transition = new InternalNavigationTransition(navigation.currentEntry, navigationType);
switch (event.navigationType) {
case 'push':
case 'replace': {
navigation.urlAndHistoryUpdateSteps(event);
break;
}
case 'reload': {
navigation.updateNavigationEntriesForSameDocumentNavigation(event);
break;
}
case 'traverse': {
navigation.userAgentTraverse(event);
break;
}
}
}
const promisesList = handlers.map((handler) => handler());
if (promisesList.length === 0) {
promisesList.push(Promise.resolve());
}
Promise.all(promisesList)
.then(() => {
// Follows steps outlined under "Wait for all of promisesList, with the following success steps:"
// in the spec https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigate-event-firing.
if (result.signal.aborted) {
return;
}
if (event !== navigation.navigateEvent) {
throw new Error("Navigation's ongoing event not equal to resolved event");
}
navigation.navigateEvent = null;
finishNavigationEvent(event, true);
const navigatesuccessEvent = new Event('navigatesuccess', { bubbles: false, cancelable });
navigation.eventTarget.dispatchEvent(navigatesuccessEvent);
result.finishedResolve();
if (navigation.transition !== null) {
navigation.transition.finishedResolve();
}
navigation.transition = null;
})
.catch((reason) => event.cancel(reason));
}
// Internal only.
// https://whatpr.org/html/10919/nav-history-apis.html#inner-navigate-event-firing-algorithm
// "Let cancel be the following steps given reason"
event.cancel = function (reason) {
if (result.signal.aborted) {
return;
}
if (event !== navigation.navigateEvent) {
throw new Error("Navigation's ongoing event not equal to resolved event");
}
navigation.navigateEvent = null;
if (event.interceptionState !== 'intercepted') {
finishNavigationEvent(event, false);
}
const navigateerrorEvent = new Event('navigateerror', { bubbles: false, cancelable });
navigation.eventTarget.dispatchEvent(navigateerrorEvent);
result.finishedReject(reason);
if (navigation.transition !== null) {
navigation.transition.finishedReject(reason);
}
navigation.transition = null;
};
function dispatch() {
navigation.navigateEvent = event;
navigation.eventTarget.dispatchEvent(event);
if (precommitHandlers.length === 0) {
commit();
}
else {
const precommitController = { redirect };
const precommitPromisesList = precommitHandlers.map((handler) => handler(precommitController));
Promise.all(precommitPromisesList)
.then(() => commit())
.catch((reason) => event.cancel(reason));
}
}
dispatch();
return event.interceptionState !== 'none';
}
/** https://whatpr.org/html/10919/nav-history-apis.html#navigateevent-finish */
function finishNavigationEvent(event, didFulfill) {
if (event.interceptionState === 'finished') {
throw new Error('Attempting to finish navigation event that was already finished');
}
if (event.interceptionState === 'intercepted') {
if (didFulfill === true) {
throw new Error('didFulfill should be false');
}
// assert precommit handlers is not empty
event.interceptionState = 'finished';
return;
}
if (event.interceptionState === 'none') {
return;
}
potentiallyResetFocus(event);
if (didFulfill) {
potentiallyResetScroll(event);
}
event.interceptionState = 'finished';
}
/** https://whatpr.org/html/10919/nav-history-apis.html#potentially-reset-the-focus */
function potentiallyResetFocus(event) {
if (event.interceptionState !== 'committed' && event.interceptionState !== 'scrolled') {
throw new Error('cannot reset focus if navigation event is not committed or scrolled');
}
// TODO(atscott): The rest of the steps
}
function potentiallyResetScroll(event) {
if (event.interceptionState !== 'committed' && event.interceptionState !== 'scrolled') {
throw new Error('cannot reset scroll if navigation event is not committed or scrolled');
}
if (event.interceptionState === 'scrolled' || event.scrollBehavior === 'manual') {
return;
}
processScrollBehavior(event);
}
/* https://whatpr.org/html/10919/nav-history-apis.html#process-scroll-behavior */
function processScrollBehavior(event) {
if (event.interceptionState !== 'committed') {
throw new Error('invalid event interception state when processing scroll behavior');
}
event.interceptionState = 'scrolled';
// TODO(atscott): the rest of the steps
}
/**
* Create a fake equivalent of `NavigationCurrentEntryChange`. This does not use
* a class because ES5 transpiled JavaScript cannot extend native Event.
*/
function createFakeNavigationCurrentEntryChangeEvent({ from, navigationType, }) {
const event = new Event('currententrychange', {
bubbles: false,
cancelable: false,
});
event.from = from;
event.navigationType = navigationType;
return event;
}
/**
* Create a fake equivalent of `PopStateEvent`. This does not use a class
* because ES5 transpiled JavaScript cannot extend native Event.
*/
function createPopStateEvent({ state }) {
const event = new Event('popstate', {
bubbles: false,
cancelable: false,
});
event.state = state;
return event;
}
function createHashChangeEvent(newURL, oldURL) {
const event = new Event('hashchange', {
bubbles: false,
cancelable: false,
});
event.newURL = newURL;
event.oldURL = oldURL;
return event;
}
/**
* Fake equivalent of `NavigationDestination`.
*/
class FakeNavigationDestination {
url;
sameDocument;
key;
id;
index;
state;
historyState;
constructor({ url, sameDocument, historyState, state, key = null, id = null, index = -1, }) {
this.url = url;
this.sameDocument = sameDocument;
this.state = state;
this.historyState = historyState;
this.key = key;
this.id = id;
this.index = index;
}
getState() {
return this.state;
}
getHistoryState() {
return this.historyState;
}
}
/** Utility function to determine whether two UrlLike have the same hash. */
function isHashChange(from, to) {
return (to.hash !== from.hash &&
to.hostname === from.hostname &&
to.pathname === from.pathname &&
to.search === from.search);
}
class InternalNavigationTransition {
from;
navigationType;
finished;
finishedResolve;
finishedReject;
constructor(from, navigationType) {
this.from = from;
this.navigationType = navigationType;
this.finished = new Promise((resolve, reject) => {
this.finishedReject = reject;
this.finishedResolve = resolve;
});
// All rejections are handled.
this.finished.catch(() => { });
}
}
/**
* Internal utility class for representing the result of a navigation.
* Generally equivalent to the "apiMethodTracker" in the spec.
*/
class InternalNavigationResult {
navigation;
committedTo = null;
committedResolve;
committedReject;
finishedResolve;
finishedReject;
committed;
finished;
get signal() {
return this.abortController.signal;
}
abortController = new AbortController();
constructor(navigation) {
this.navigation = navigation;
this.committed = new Promise((resolve, reject) => {
this.committedResolve = (entry) => {
this.committedTo = entry;
resolve(entry);
};
this.committedReject = reject;
});
this.finished = new Promise(async (resolve, reject) => {
this.finishedResolve = () => {
if (this.committedTo === null) {
throw new Error('NavigateEvent should have been committed before resolving finished promise.');
}
resolve(this.committedTo);
};
this.finishedReject = (reason) => {
reject(reason);
this.abortController.abort(reason);
};
});
// All rejections are handled.
this.committed.catch(() => { });
this.finished.catch(() => { });
}
}
class Log {
logItems;
constructor() {
this.logItems = [];
}
add(value) {
this.logItems.push(value);
}
fn(value) {
return () => {
this.logItems.push(value);
};
}
clear() {
this.logItems = [];
}
result() {
return this.logItems.join('; ');
}
static ɵfac = function Log_Factory(__ngFactoryType__) { return new (__ngFactoryType__ || Log)(); };
static ɵprov = /*@__PURE__*/ i0.ɵɵdefineInjectable({ token: Log, factory: Log.ɵfac });
}
(() => { (typeof ngDevMode === "undefined" || ngDevMode) && i0.ɵsetClassMetadata(Log, [{
type: Injectable
}], () => [], null); })();
export { ComponentFixture, ComponentFixtureAutoDetect, ComponentFixtureNoNgZone, DeferBlockFixture, InjectSetupWrapper, TestBed, TestComponentRenderer, __core_private_testing_placeholder__, discardPeriodicTasks, fakeAsync, flush, flushMicrotasks, getTestBed, inject, resetFakeAsyncZone, tick, waitForAsync, withModule, FakeNavigation as ɵFakeNavigation, Log as ɵLog, MetadataOverrider as ɵMetadataOverrider };
//# sourceMappingURL=testing.mjs.map