94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
#include "catch.hpp"
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#include <osmium/util/delta.hpp>
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#include <cstdint>
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#include <vector>
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TEST_CASE("delta encode int") {
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osmium::DeltaEncode<int> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.value() == 17);
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REQUIRE(x.update(10) == -7);
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REQUIRE(x.value() == 10);
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REQUIRE(x.update(-10) == -20);
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REQUIRE(x.value() == -10);
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x.clear();
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REQUIRE(x.value() == 0);
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}
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TEST_CASE("delta encode int with int32") {
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osmium::DeltaEncode<int, int32_t> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.value() == 17);
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REQUIRE(x.update(10) == -7);
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REQUIRE(x.value() == 10);
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REQUIRE(x.update(-10) == -20);
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REQUIRE(x.value() == -10);
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x.clear();
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REQUIRE(x.value() == 0);
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}
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TEST_CASE("delta decode int") {
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osmium::DeltaDecode<int> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.value() == 17);
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REQUIRE(x.update(10) == 27);
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REQUIRE(x.value() == 27);
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REQUIRE(x.update(-40) == -13);
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REQUIRE(x.value() == -13);
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x.clear();
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.value() == 17);
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}
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TEST_CASE("delta decode int with int32") {
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osmium::DeltaDecode<int, int32_t> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.update(10) == 27);
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REQUIRE(x.update(-40) == -13);
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x.clear();
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REQUIRE(x.update(17) == 17);
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}
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TEST_CASE("delta encode unsigned int") {
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osmium::DeltaEncode<unsigned int> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.update(10) == -7);
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REQUIRE(x.update(0) == -10);
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}
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TEST_CASE("delta decode unsigned int") {
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osmium::DeltaDecode<unsigned int> x;
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.update(10) == 27);
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REQUIRE(x.update(-15) == 12);
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}
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TEST_CASE("delta encode and decode") {
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const std::vector<int> a = { 5, -9, 22, 13, 0, 23 };
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osmium::DeltaEncode<int, int> de;
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std::vector<int> b;
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b.reserve(a.size());
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for (int x : a) {
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b.push_back(de.update(x));
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}
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osmium::DeltaDecode<int, int> dd;
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std::vector<int> c;
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c.reserve(b.size());
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for (int x : b) {
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c.push_back(dd.update(x));
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}
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REQUIRE(a == c);
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}
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