first unit test :)

DynamicQuery.sln

@@ -17,6 +17,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		README.md = README.md
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PoweredSoft.DynamicQuery.Test", "PoweredSoft.DynamicQuery.Test\PoweredSoft.DynamicQuery.Test.csproj", "{3EAD8217-8E10-4261-9055-50444905922C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +41,10 @@ Global
 		{E4E954E0-66FA-4D72-979A-FB2EF8356A90}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E4E954E0-66FA-4D72-979A-FB2EF8356A90}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E4E954E0-66FA-4D72-979A-FB2EF8356A90}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3EAD8217-8E10-4261-9055-50444905922C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3EAD8217-8E10-4261-9055-50444905922C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3EAD8217-8E10-4261-9055-50444905922C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3EAD8217-8E10-4261-9055-50444905922C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

PoweredSoft.DynamicQuery.Test/CriteriaTests.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Linq;
+using Microsoft.EntityFrameworkCore;
+using PoweredSoft.DynamicQuery.Test.Mock;
+using Xunit;
+
+namespace PoweredSoft.DynamicQuery.Test
+{
+    public class CriteriaTests
+    {
+        [Fact]
+        public void TestEmptyCriteria()
+        {
+            var options = new DbContextOptionsBuilder<MockContext>().UseInMemoryDatabase(databaseName: "TestEmptyCriteria").Options;
+            using (var ctx = new MockContext(options))
+            {
+                ctx.AddRange(new Item[]
+                {
+                    new Item { Id = 1, Name = "Computer", Price = 1000M },
+                    new Item { Id = 2, Name = "Mice", Price = 25.99M },
+                    new Item { Id = 3, Name = "Keyboard", Price = 100M },
+                    new Item { Id = 4, Name = "Screen", Price = 499.98M },
+                    new Item { Id = 5, Name = "Printer", Price = 230.95M },
+                });
+
+                ctx.SaveChanges();
+            }
+
+            using (var ctx = new MockContext(options))
+            {
+                var resultShouldMatch = ctx.Items.ToList();
+                var queryable = ctx.Items.AsQueryable();
+                
+                // query handler that is empty should be the same as running to list.
+                var criteria = new QueryCriteria();
+                var queryHandler = new QueryHandler();
+                var result = queryHandler.Execute(queryable, criteria);
+                Assert.All(resultShouldMatch, t => result.Data.Contains(t));
+            }
+        }
+    }
+}

PoweredSoft.DynamicQuery.Test/Mock/Entities.cs

@@ -0,0 +1,50 @@
+using System.Collections.Generic;
+
+namespace PoweredSoft.DynamicQuery.Test.Mock
+{
+    public class Order
+    {
+        public long Id { get; set; }
+        public long OrderNum { get; set; }
+        public long Date { get; set; }
+        public long CustomerId { get; set; }
+
+        public virtual Customer Customer { get; set; }
+        public ICollection<OrderItem> OrderItems { get; set; } = new HashSet<OrderItem>();
+    }
+
+    public class Customer
+    {
+        public long Id { get; set; }
+        public string FirstName { get; set; }
+        public string LastName { get; set; }
+        public string AddressLine1 { get; set; }
+        public string AddressLine2 { get; set; }
+        public string City { get; set; }
+        public string ProvinceOrState { get; set; }
+        public string PostalCodeOrZip { get; set; }
+
+
+        public ICollection<Order> Orders { get; set; } = new HashSet<Order>();
+    }
+
+    public class Item
+    {
+        public long Id { get; set; }
+        public string Name { get; set; }
+        public decimal Price { get; set; }
+
+        public virtual ICollection<OrderItem> OrderItems { get; set; } = new HashSet<OrderItem>();
+    }
+        
+    public class OrderItem
+    {
+        public long Id { get; set; }
+        public long Quantity { get; set; }
+        public decimal PriceAtTheTime { get; set; }
+        public long ItemId { get; set; }
+
+        public virtual Item Item { get; set; }
+        public virtual Order Order { get; set; }
+    }
+}

PoweredSoft.DynamicQuery.Test/Mock/MockContext.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Microsoft.EntityFrameworkCore;
+
+namespace PoweredSoft.DynamicQuery.Test.Mock
+{
+    public class MockContext : DbContext
+    {
+        public virtual DbSet<Customer> Customers { get; set; }
+        public virtual DbSet<Item> Items { get; set; }
+        public virtual DbSet<Order> Orders { get; set; }
+        public virtual DbSet<OrderItem> OrderItems { get; set; }
+
+        public MockContext()
+        {
+            
+        }
+
+        public MockContext(DbContextOptions<MockContext> options)
+            : base(options)
+        {
+
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+
+        }
+    }
+}

PoweredSoft.DynamicQuery.Test/PoweredSoft.DynamicQuery.Test.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="2.1.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="2.1.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.8.0" />
+    <PackageReference Include="xunit" Version="2.3.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PoweredSoft.DynamicQuery\PoweredSoft.DynamicQuery.csproj" />
+  </ItemGroup>
+
+</Project>

README.md

@@ -19,7 +19,7 @@ Criteria must implement the following interfaces
 
 Object           | Interface                                                                | Implementation                                                                | Example                                                | Description
 -----------------|--------------------------------------------------------------------------|-------------------------------------------------------------------------------|--------------------------------------------------------|--------------------------------------------
-Query Criteria   | [interface](../master/PoweredSoft.DynamicQuery.Core/IQueryCriteria.cs)   | [default implementation](../master/PoweredSoft.DynamicQuery/QueryCriteria.cs) | [test](../master/PoweredSoft.DynamicQuery.Test/TBT.md) | Wraps the query parameters
+Query Criteria   | [interface](../master/PoweredSoft.DynamicQuery.Core/IQueryCriteria.cs)   | [default implementation](../master/PoweredSoft.DynamicQuery/QueryCriteria.cs) | [test](../master/PoweredSoft.DynamicQuery.Test/CriteriaTests.cs) | Wraps the query parameters
 Filter           | [interface](../master/PoweredSoft.DynamicQuery.Core/IFilter.cs)          | [default implementation](../master/PoweredSoft.DynamicQuery/Filter.cs)        | [test](../master/PoweredSoft.DynamicQuery.Test/TBT.md) | Represent a filter to be executed
 Simple Filter    | [interface](../master/PoweredSoft.DynamicQuery.Core/ISimpleFilter.cs)    | [default implementation](../master/PoweredSoft.DynamicQuery/Filter.cs)        | [test](../master/PoweredSoft.DynamicQuery.Test/TBT.md) | Represent a simple filter to be executed
 Composite Filter | [interface](../master/PoweredSoft.DynamicQuery.Core/ICompositeFilter.cs) | [default implementation](../master/PoweredSoft.DynamicQuery/Filter.cs)        | [test](../master/PoweredSoft.DynamicQuery.Test/TBT.md) | Represent a composite filter to be executed