mirror of https://github.com/catchorg/Catch2.git
917 lines
34 KiB
C++
917 lines
34 KiB
C++
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// Copyright Catch2 Authors
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.txt or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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// SPDX-License-Identifier: BSL-1.0
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#include <catch2/catch_test_macros.hpp>
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#include <catch2/matchers/catch_matchers_container_properties.hpp>
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#include <catch2/matchers/catch_matchers_contains.hpp>
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#include <catch2/matchers/catch_matchers_range_equals.hpp>
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#include <catch2/matchers/catch_matchers_floating_point.hpp>
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#include <catch2/matchers/catch_matchers_quantifiers.hpp>
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#include <catch2/matchers/catch_matchers_predicate.hpp>
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#include <catch2/matchers/catch_matchers_string.hpp>
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#include <helpers/range_test_helpers.hpp>
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#include <cmath>
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#include <list>
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#include <map>
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#include <type_traits>
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#include <vector>
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#include <memory>
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struct MoveOnlyTestElement {
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int num = 0;
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MoveOnlyTestElement(int n) :num(n) {}
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MoveOnlyTestElement(MoveOnlyTestElement&& rhs) = default;
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MoveOnlyTestElement& operator=(MoveOnlyTestElement&& rhs) = default;
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friend bool operator==(MoveOnlyTestElement const& lhs, MoveOnlyTestElement const& rhs) {
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return lhs.num == rhs.num;
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}
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friend std::ostream& operator<<(std::ostream& out, MoveOnlyTestElement const& elem) {
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out << elem.num;
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return out;
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}
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};
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TEST_CASE("Basic use of the Contains range matcher", "[matchers][templated][contains]") {
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using Catch::Matchers::Contains;
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SECTION("Different argument ranges, same element type, default comparison") {
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std::array<int, 3> a{ { 1,2,3 } };
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std::vector<int> b{ 0,1,2 };
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std::list<int> c{ 4,5,6 };
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// A contains 1
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REQUIRE_THAT(a, Contains(1));
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// B contains 1
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REQUIRE_THAT(b, Contains(1));
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// C does not contain 1
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REQUIRE_THAT(c, !Contains(1));
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}
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SECTION("Different argument ranges, same element type, custom comparison") {
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std::array<int, 3> a{ { 1,2,3 } };
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std::vector<int> b{ 0,1,2 };
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std::list<int> c{ 4,5,6 };
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auto close_enough = [](int lhs, int rhs) { return std::abs(lhs - rhs) <= 1; };
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// A contains 1, which is "close enough" to 0
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REQUIRE_THAT(a, Contains(0, close_enough));
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// B contains 0 directly
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REQUIRE_THAT(b, Contains(0, close_enough));
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// C does not contain anything "close enough" to 0
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REQUIRE_THAT(c, !Contains(0, close_enough));
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}
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SECTION("Different element type, custom comparisons") {
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std::array<std::string, 3> a{ { "abc", "abcd" , "abcde" } };
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REQUIRE_THAT(a, Contains(4, [](auto&& lhs, size_t sz) {
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return lhs.size() == sz;
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}));
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}
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SECTION("Can handle type that requires ADL-found free function begin and end") {
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unrelated::needs_ADL_begin<int> in{1, 2, 3, 4, 5};
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REQUIRE_THAT(in, Contains(1));
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REQUIRE_THAT(in, !Contains(8));
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}
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SECTION("Initialization with move only types") {
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std::array<MoveOnlyTestElement, 3> in{ { MoveOnlyTestElement{ 1 }, MoveOnlyTestElement{ 2 }, MoveOnlyTestElement{ 3 } } };
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REQUIRE_THAT(in, Contains(MoveOnlyTestElement{ 2 }));
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REQUIRE_THAT(in, !Contains(MoveOnlyTestElement{ 9 }));
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}
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SECTION("Matching using matcher") {
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std::array<double, 4> in{ {1, 2, 3} };
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REQUIRE_THAT(in, Contains(Catch::Matchers::WithinAbs(0.5, 0.5)));
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}
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}
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namespace {
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struct has_empty {
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bool empty() const { return false; }
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};
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} // end unnamed namespace
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TEST_CASE("Basic use of the Empty range matcher", "[matchers][templated][empty]") {
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using Catch::Matchers::IsEmpty;
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SECTION("Simple, std-provided containers") {
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std::array<int, 0> empty_array{};
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std::array<double, 1> non_empty_array{};
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REQUIRE_THAT(empty_array, IsEmpty());
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REQUIRE_THAT(non_empty_array, !IsEmpty());
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std::vector<std::string> empty_vec;
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std::vector<char> non_empty_vec{ 'a', 'b', 'c' };
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REQUIRE_THAT(empty_vec, IsEmpty());
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REQUIRE_THAT(non_empty_vec, !IsEmpty());
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std::list<std::list<std::list<int>>> inner_lists_are_empty;
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inner_lists_are_empty.push_back({});
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REQUIRE_THAT(inner_lists_are_empty, !IsEmpty());
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REQUIRE_THAT(inner_lists_are_empty.front(), IsEmpty());
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}
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SECTION("Type with empty") {
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REQUIRE_THAT(has_empty{}, !IsEmpty());
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}
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SECTION("Type requires ADL found empty free function") {
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REQUIRE_THAT(unrelated::ADL_empty{}, IsEmpty());
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}
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}
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namespace {
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class LessThanMatcher final : public Catch::Matchers::MatcherBase<size_t> {
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size_t m_target;
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public:
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explicit LessThanMatcher(size_t target):
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m_target(target)
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{}
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bool match(size_t const& size) const override {
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return size < m_target;
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}
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std::string describe() const override {
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return "is less than " + std::to_string(m_target);
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}
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};
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LessThanMatcher Lt(size_t sz) {
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return LessThanMatcher{ sz };
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}
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struct has_size {
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size_t size() const {
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return 13;
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}
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};
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} // end unnamed namespace
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TEST_CASE("Usage of the SizeIs range matcher", "[matchers][templated][size]") {
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using Catch::Matchers::SizeIs;
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SECTION("Some with stdlib containers") {
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std::vector<int> empty_vec;
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REQUIRE_THAT(empty_vec, SizeIs(0));
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REQUIRE_THAT(empty_vec, !SizeIs(2));
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REQUIRE_THAT(empty_vec, SizeIs(Lt(2)));
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std::array<int, 2> arr{};
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REQUIRE_THAT(arr, SizeIs(2));
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REQUIRE_THAT(arr, SizeIs( Lt(3)));
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REQUIRE_THAT(arr, !SizeIs(!Lt(3)));
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std::map<int, int> map{ {1, 1}, {2, 2}, {3, 3} };
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REQUIRE_THAT(map, SizeIs(3));
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}
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SECTION("Type requires ADL found size free function") {
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REQUIRE_THAT(unrelated::ADL_size{}, SizeIs(12));
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}
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SECTION("Type has size member") {
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REQUIRE_THAT(has_size{}, SizeIs(13));
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}
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}
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TEST_CASE("Usage of AllMatch range matcher", "[matchers][templated][quantifiers]") {
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using Catch::Matchers::AllMatch;
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using Catch::Matchers::Predicate;
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SECTION("Basic usage") {
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using Catch::Matchers::Contains;
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using Catch::Matchers::SizeIs;
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std::array<std::array<int, 5>, 5> data{{
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{{ 0, 1, 2, 3, 5 }},
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{{ 4,-3,-2, 5, 0 }},
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{{ 0, 0, 0, 5, 0 }},
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{{ 0,-5, 0, 5, 0 }},
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{{ 1, 0, 0,-1, 5 }}
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}};
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REQUIRE_THAT(data, AllMatch(SizeIs(5)));
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REQUIRE_THAT(data, !AllMatch(Contains(0) && Contains(1)));
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}
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SECTION("Type requires ADL found begin and end") {
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unrelated::needs_ADL_begin<int> needs_adl{ 1, 2, 3, 4, 5 };
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REQUIRE_THAT( needs_adl, AllMatch( Predicate<int>( []( int elem ) {
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return elem < 6;
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} ) ) );
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}
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SECTION("Shortcircuiting") {
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with_mocked_iterator_access<int> mocked{ 1, 2, 3, 4, 5 };
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SECTION("All are read") {
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auto allMatch = AllMatch(Predicate<int>([](int elem) {
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return elem < 10;
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}));
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REQUIRE_THAT(mocked, allMatch);
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REQUIRE(mocked.m_derefed[0]);
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REQUIRE(mocked.m_derefed[1]);
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REQUIRE(mocked.m_derefed[2]);
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REQUIRE(mocked.m_derefed[3]);
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REQUIRE(mocked.m_derefed[4]);
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}
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SECTION("Short-circuited") {
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auto allMatch = AllMatch(Predicate<int>([](int elem) {
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return elem < 3;
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}));
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REQUIRE_THAT(mocked, !allMatch);
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REQUIRE(mocked.m_derefed[0]);
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REQUIRE(mocked.m_derefed[1]);
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REQUIRE(mocked.m_derefed[2]);
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REQUIRE_FALSE(mocked.m_derefed[3]);
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REQUIRE_FALSE(mocked.m_derefed[4]);
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}
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}
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}
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TEST_CASE("Usage of AnyMatch range matcher", "[matchers][templated][quantifiers]") {
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using Catch::Matchers::AnyMatch;
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using Catch::Matchers::Predicate;
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SECTION("Basic usage") {
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using Catch::Matchers::Contains;
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using Catch::Matchers::SizeIs;
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std::array<std::array<int, 5>, 5> data{ {
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{{ 0, 1, 2, 3, 5 }},
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{{ 4,-3,-2, 5, 0 }},
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{{ 0, 0, 0, 5, 0 }},
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{{ 0,-5, 0, 5, 0 }},
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{{ 1, 0, 0,-1, 5 }}
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} };
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REQUIRE_THAT(data, AnyMatch(SizeIs(5)));
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REQUIRE_THAT(data, !AnyMatch(Contains(0) && Contains(10)));
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}
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SECTION( "Type requires ADL found begin and end" ) {
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unrelated::needs_ADL_begin<int> needs_adl{ 1, 2, 3, 4, 5 };
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REQUIRE_THAT( needs_adl, AnyMatch( Predicate<int>( []( int elem ) {
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return elem < 3;
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} ) ) );
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}
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SECTION("Shortcircuiting") {
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with_mocked_iterator_access<int> mocked{ 1, 2, 3, 4, 5 };
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SECTION("All are read") {
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auto anyMatch = AnyMatch(
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Predicate<int>( []( int elem ) { return elem > 10; } ) );
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REQUIRE_THAT( mocked, !anyMatch );
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REQUIRE( mocked.m_derefed[0] );
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REQUIRE( mocked.m_derefed[1] );
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REQUIRE( mocked.m_derefed[2] );
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REQUIRE( mocked.m_derefed[3] );
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REQUIRE( mocked.m_derefed[4] );
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}
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SECTION("Short-circuited") {
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auto anyMatch = AnyMatch(
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Predicate<int>( []( int elem ) { return elem < 3; } ) );
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REQUIRE_THAT( mocked, anyMatch );
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REQUIRE( mocked.m_derefed[0] );
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REQUIRE_FALSE( mocked.m_derefed[1] );
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REQUIRE_FALSE( mocked.m_derefed[2] );
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REQUIRE_FALSE( mocked.m_derefed[3] );
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REQUIRE_FALSE( mocked.m_derefed[4] );
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}
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}
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}
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TEST_CASE("Usage of NoneMatch range matcher", "[matchers][templated][quantifiers]") {
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using Catch::Matchers::NoneMatch;
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using Catch::Matchers::Predicate;
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SECTION("Basic usage") {
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using Catch::Matchers::Contains;
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using Catch::Matchers::SizeIs;
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std::array<std::array<int, 5>, 5> data{ {
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{{ 0, 1, 2, 3, 5 }},
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{{ 4,-3,-2, 5, 0 }},
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{{ 0, 0, 0, 5, 0 }},
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{{ 0,-5, 0, 5, 0 }},
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{{ 1, 0, 0,-1, 5 }}
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} };
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REQUIRE_THAT(data, NoneMatch(SizeIs(6)));
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REQUIRE_THAT(data, !NoneMatch(Contains(0) && Contains(1)));
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}
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SECTION( "Type requires ADL found begin and end" ) {
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unrelated::needs_ADL_begin<int> needs_adl{ 1, 2, 3, 4, 5 };
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REQUIRE_THAT( needs_adl, NoneMatch( Predicate<int>( []( int elem ) {
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return elem > 6;
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} ) ) );
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}
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SECTION("Shortcircuiting") {
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with_mocked_iterator_access<int> mocked{ 1, 2, 3, 4, 5 };
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SECTION("All are read") {
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auto noneMatch = NoneMatch(
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Predicate<int>([](int elem) { return elem > 10; }));
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REQUIRE_THAT(mocked, noneMatch);
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REQUIRE(mocked.m_derefed[0]);
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REQUIRE(mocked.m_derefed[1]);
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REQUIRE(mocked.m_derefed[2]);
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REQUIRE(mocked.m_derefed[3]);
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REQUIRE(mocked.m_derefed[4]);
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}
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SECTION("Short-circuited") {
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auto noneMatch = NoneMatch(
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Predicate<int>([](int elem) { return elem < 3; }));
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REQUIRE_THAT(mocked, !noneMatch);
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REQUIRE(mocked.m_derefed[0]);
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REQUIRE_FALSE(mocked.m_derefed[1]);
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REQUIRE_FALSE(mocked.m_derefed[2]);
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REQUIRE_FALSE(mocked.m_derefed[3]);
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REQUIRE_FALSE(mocked.m_derefed[4]);
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}
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}
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}
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namespace {
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struct ConvertibleToBool
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{
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bool v;
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explicit operator bool() const
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{
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return v;
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}
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};
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}
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namespace Catch {
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template <>
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struct StringMaker<ConvertibleToBool> {
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static std::string
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convert( ConvertibleToBool const& convertible_to_bool ) {
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return ::Catch::Detail::stringify( convertible_to_bool.v );
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}
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};
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} // namespace Catch
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TEST_CASE("Usage of AllTrue range matcher", "[matchers][templated][quantifiers]") {
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using Catch::Matchers::AllTrue;
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SECTION( "Basic usage" ) {
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SECTION( "All true evaluates to true" ) {
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std::array<bool, 5> const data{ { true, true, true, true, true } };
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REQUIRE_THAT( data, AllTrue() );
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}
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SECTION( "Empty evaluates to true" ) {
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std::array<bool, 0> const data{};
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REQUIRE_THAT( data, AllTrue() );
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}
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SECTION( "One false evaluates to false" ) {
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std::array<bool, 5> const data{ { true, true, false, true, true } };
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REQUIRE_THAT( data, !AllTrue() );
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}
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SECTION( "All false evaluates to false" ) {
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std::array<bool, 5> const data{
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{ false, false, false, false, false } };
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REQUIRE_THAT( data, !AllTrue() );
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}
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}
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SECTION( "Contained type is convertible to bool" ) {
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SECTION( "All true evaluates to true" ) {
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std::array<ConvertibleToBool, 5> const data{
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{ { true }, { true }, { true }, { true }, { true } } };
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REQUIRE_THAT( data, AllTrue() );
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}
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SECTION( "One false evaluates to false" ) {
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std::array<ConvertibleToBool, 5> const data{
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{ { true }, { true }, { false }, { true }, { true } } };
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REQUIRE_THAT( data, !AllTrue() );
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}
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SECTION( "All false evaluates to false" ) {
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std::array<ConvertibleToBool, 5> const data{
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{ { false }, { false }, { false }, { false }, { false } } };
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REQUIRE_THAT( data, !AllTrue() );
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}
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}
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SECTION( "Shortcircuiting" ) {
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SECTION( "All are read" ) {
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with_mocked_iterator_access<bool> const mocked{
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true, true, true, true, true };
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REQUIRE_THAT( mocked, AllTrue() );
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REQUIRE( mocked.m_derefed[0] );
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REQUIRE( mocked.m_derefed[1] );
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REQUIRE( mocked.m_derefed[2] );
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REQUIRE( mocked.m_derefed[3] );
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REQUIRE( mocked.m_derefed[4] );
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}
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SECTION( "Short-circuited" ) {
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with_mocked_iterator_access<bool> const mocked{
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true, true, false, true, true };
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REQUIRE_THAT( mocked, !AllTrue() );
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REQUIRE( mocked.m_derefed[0] );
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REQUIRE( mocked.m_derefed[1] );
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REQUIRE( mocked.m_derefed[2] );
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REQUIRE_FALSE( mocked.m_derefed[3] );
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REQUIRE_FALSE( mocked.m_derefed[4] );
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}
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}
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}
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TEST_CASE( "Usage of NoneTrue range matcher", "[matchers][templated][quantifiers]" ) {
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using Catch::Matchers::NoneTrue;
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SECTION( "Basic usage" ) {
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SECTION( "All true evaluates to false" ) {
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std::array<bool, 5> const data{ { true, true, true, true, true } };
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REQUIRE_THAT( data, !NoneTrue() );
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}
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SECTION( "Empty evaluates to true" ) {
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std::array<bool, 0> const data{};
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REQUIRE_THAT( data, NoneTrue() );
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}
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SECTION( "One true evaluates to false" ) {
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std::array<bool, 5> const data{
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{ false, false, true, false, false } };
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REQUIRE_THAT( data, !NoneTrue() );
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}
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SECTION( "All false evaluates to true" ) {
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std::array<bool, 5> const data{
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{ false, false, false, false, false } };
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REQUIRE_THAT( data, NoneTrue() );
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}
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}
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SECTION( "Contained type is convertible to bool" ) {
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SECTION( "All true evaluates to false" ) {
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std::array<ConvertibleToBool, 5> const data{
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{ { true }, { true }, { true }, { true }, { true } } };
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REQUIRE_THAT( data, !NoneTrue() );
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}
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SECTION( "One true evaluates to false" ) {
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std::array<ConvertibleToBool, 5> const data{
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{ { false }, { false }, { true }, { false }, { false } } };
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REQUIRE_THAT( data, !NoneTrue() );
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}
|
|
SECTION( "All false evaluates to true" ) {
|
|
std::array<ConvertibleToBool, 5> const data{
|
|
{ { false }, { false }, { false }, { false }, { false } } };
|
|
REQUIRE_THAT( data, NoneTrue() );
|
|
}
|
|
}
|
|
|
|
SECTION( "Shortcircuiting" ) {
|
|
SECTION( "All are read" ) {
|
|
with_mocked_iterator_access<bool> const mocked{
|
|
false, false, false, false, false };
|
|
REQUIRE_THAT( mocked, NoneTrue() );
|
|
REQUIRE( mocked.m_derefed[0] );
|
|
REQUIRE( mocked.m_derefed[1] );
|
|
REQUIRE( mocked.m_derefed[2] );
|
|
REQUIRE( mocked.m_derefed[3] );
|
|
REQUIRE( mocked.m_derefed[4] );
|
|
}
|
|
SECTION( "Short-circuited" ) {
|
|
with_mocked_iterator_access<bool> const mocked{
|
|
false, false, true, true, true };
|
|
REQUIRE_THAT( mocked, !NoneTrue() );
|
|
REQUIRE( mocked.m_derefed[0] );
|
|
REQUIRE( mocked.m_derefed[1] );
|
|
REQUIRE( mocked.m_derefed[2] );
|
|
REQUIRE_FALSE( mocked.m_derefed[3] );
|
|
REQUIRE_FALSE( mocked.m_derefed[4] );
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_CASE( "Usage of AnyTrue range matcher", "[matchers][templated][quantifiers]" ) {
|
|
using Catch::Matchers::AnyTrue;
|
|
|
|
SECTION( "Basic usage" ) {
|
|
SECTION( "All true evaluates to true" ) {
|
|
std::array<bool, 5> const data{ { true, true, true, true, true } };
|
|
REQUIRE_THAT( data, AnyTrue() );
|
|
}
|
|
SECTION( "Empty evaluates to false" ) {
|
|
std::array<bool, 0> const data{};
|
|
REQUIRE_THAT( data, !AnyTrue() );
|
|
}
|
|
SECTION( "One true evaluates to true" ) {
|
|
std::array<bool, 5> const data{
|
|
{ false, false, true, false, false } };
|
|
REQUIRE_THAT( data, AnyTrue() );
|
|
}
|
|
SECTION( "All false evaluates to false" ) {
|
|
std::array<bool, 5> const data{
|
|
{ false, false, false, false, false } };
|
|
REQUIRE_THAT( data, !AnyTrue() );
|
|
}
|
|
}
|
|
|
|
SECTION( "Contained type is convertible to bool" ) {
|
|
SECTION( "All true evaluates to true" ) {
|
|
std::array<ConvertibleToBool, 5> const data{
|
|
{ { true }, { true }, { true }, { true }, { true } } };
|
|
REQUIRE_THAT( data, AnyTrue() );
|
|
}
|
|
SECTION( "One true evaluates to true" ) {
|
|
std::array<ConvertibleToBool, 5> const data{
|
|
{ { false }, { false }, { true }, { false }, { false } } };
|
|
REQUIRE_THAT( data, AnyTrue() );
|
|
}
|
|
SECTION( "All false evaluates to false" ) {
|
|
std::array<ConvertibleToBool, 5> const data{
|
|
{ { false }, { false }, { false }, { false }, { false } } };
|
|
REQUIRE_THAT( data, !AnyTrue() );
|
|
}
|
|
}
|
|
|
|
SECTION( "Shortcircuiting" ) {
|
|
SECTION( "All are read" ) {
|
|
with_mocked_iterator_access<bool> const mocked{
|
|
false, false, false, false, true };
|
|
REQUIRE_THAT( mocked, AnyTrue() );
|
|
REQUIRE( mocked.m_derefed[0] );
|
|
REQUIRE( mocked.m_derefed[1] );
|
|
REQUIRE( mocked.m_derefed[2] );
|
|
REQUIRE( mocked.m_derefed[3] );
|
|
REQUIRE( mocked.m_derefed[4] );
|
|
}
|
|
SECTION( "Short-circuited" ) {
|
|
with_mocked_iterator_access<bool> const mocked{
|
|
false, false, true, true, true };
|
|
REQUIRE_THAT( mocked, AnyTrue() );
|
|
REQUIRE( mocked.m_derefed[0] );
|
|
REQUIRE( mocked.m_derefed[1] );
|
|
REQUIRE( mocked.m_derefed[2] );
|
|
REQUIRE_FALSE( mocked.m_derefed[3] );
|
|
REQUIRE_FALSE( mocked.m_derefed[4] );
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_CASE("All/Any/None True matchers support types with ADL begin",
|
|
"[approvals][matchers][quantifiers][templated]") {
|
|
using Catch::Matchers::AllTrue;
|
|
using Catch::Matchers::NoneTrue;
|
|
using Catch::Matchers::AnyTrue;
|
|
|
|
|
|
SECTION( "Type requires ADL found begin and end" ) {
|
|
unrelated::needs_ADL_begin<bool> const needs_adl{
|
|
true, true, true, true, true };
|
|
REQUIRE_THAT( needs_adl, AllTrue() );
|
|
}
|
|
|
|
SECTION( "Type requires ADL found begin and end" ) {
|
|
unrelated::needs_ADL_begin<bool> const needs_adl{
|
|
false, false, false, false, false };
|
|
REQUIRE_THAT( needs_adl, NoneTrue() );
|
|
}
|
|
|
|
SECTION( "Type requires ADL found begin and end" ) {
|
|
unrelated::needs_ADL_begin<bool> const needs_adl{
|
|
false, false, true, false, false };
|
|
REQUIRE_THAT( needs_adl, AnyTrue() );
|
|
}
|
|
}
|
|
|
|
// Range loop iterating over range with different types for begin and end is a
|
|
// C++17 feature, and GCC refuses to compile such code unless the lang mode is
|
|
// set to C++17 or later.
|
|
#if defined(CATCH_CPP17_OR_GREATER)
|
|
|
|
TEST_CASE( "The quantifier range matchers support types with different types returned from begin and end",
|
|
"[matchers][templated][quantifiers][approvals]" ) {
|
|
using Catch::Matchers::AllMatch;
|
|
using Catch::Matchers::AllTrue;
|
|
using Catch::Matchers::AnyMatch;
|
|
using Catch::Matchers::AnyTrue;
|
|
using Catch::Matchers::NoneMatch;
|
|
using Catch::Matchers::NoneTrue;
|
|
|
|
using Catch::Matchers::Predicate;
|
|
|
|
SECTION( "AllAnyNoneMatch" ) {
|
|
has_different_begin_end_types<int> diff_types{ 1, 2, 3, 4, 5 };
|
|
REQUIRE_THAT( diff_types, !AllMatch( Predicate<int>( []( int elem ) {
|
|
return elem < 3;
|
|
} ) ) );
|
|
|
|
REQUIRE_THAT( diff_types, AnyMatch( Predicate<int>( []( int elem ) {
|
|
return elem < 2;
|
|
} ) ) );
|
|
|
|
REQUIRE_THAT( diff_types, !NoneMatch( Predicate<int>( []( int elem ) {
|
|
return elem < 3;
|
|
} ) ) );
|
|
}
|
|
SECTION( "AllAnyNoneTrue" ) {
|
|
has_different_begin_end_types<bool> diff_types{ false, false, true, false, false };
|
|
|
|
REQUIRE_THAT( diff_types, !AllTrue() );
|
|
REQUIRE_THAT( diff_types, AnyTrue() );
|
|
REQUIRE_THAT( diff_types, !NoneTrue() );
|
|
}
|
|
}
|
|
|
|
TEST_CASE( "RangeEquals supports ranges with different types returned from begin and end",
|
|
"[matchers][templated][range][approvals] ") {
|
|
using Catch::Matchers::RangeEquals;
|
|
using Catch::Matchers::UnorderedRangeEquals;
|
|
|
|
has_different_begin_end_types<int> diff_types{ 1, 2, 3, 4, 5 };
|
|
std::array<int, 5> arr1{ { 1, 2, 3, 4, 5 } }, arr2{ { 2, 3, 4, 5, 6 } };
|
|
|
|
REQUIRE_THAT( diff_types, RangeEquals( arr1 ) );
|
|
REQUIRE_THAT( diff_types, RangeEquals( arr2, []( int l, int r ) {
|
|
return l + 1 == r;
|
|
} ) );
|
|
REQUIRE_THAT( diff_types, UnorderedRangeEquals( diff_types ) );
|
|
}
|
|
|
|
TEST_CASE( "RangeContains supports ranges with different types returned from "
|
|
"begin and end",
|
|
"[matchers][templated][range][approvals]" ) {
|
|
using Catch::Matchers::Contains;
|
|
|
|
has_different_begin_end_types<size_t> diff_types{ 1, 2, 3, 4, 5 };
|
|
REQUIRE_THAT( diff_types, Contains( size_t( 3 ) ) );
|
|
REQUIRE_THAT( diff_types, Contains( LessThanMatcher( size_t( 4 ) ) ) );
|
|
}
|
|
|
|
#endif
|
|
|
|
TEST_CASE( "Usage of RangeEquals range matcher", "[matchers][templated][quantifiers]" ) {
|
|
using Catch::Matchers::RangeEquals;
|
|
|
|
// In these tests, the types are always the same - type conversion is in the next section
|
|
SECTION( "Basic usage" ) {
|
|
SECTION( "Empty container matches empty container" ) {
|
|
const std::vector<int> empty_vector;
|
|
CHECK_THAT( empty_vector, RangeEquals( empty_vector ) );
|
|
}
|
|
SECTION( "Empty container does not match non-empty container" ) {
|
|
const std::vector<int> empty_vector;
|
|
const std::vector<int> non_empty_vector{ 1 };
|
|
CHECK_THAT( empty_vector, !RangeEquals( non_empty_vector ) );
|
|
// ...and in reverse
|
|
CHECK_THAT( non_empty_vector, !RangeEquals( empty_vector ) );
|
|
}
|
|
SECTION( "Two equal 1-length non-empty containers" ) {
|
|
const std::array<int, 1> non_empty_array{ { 1 } };
|
|
CHECK_THAT( non_empty_array, RangeEquals( non_empty_array ) );
|
|
}
|
|
SECTION( "Two equal-sized, equal, non-empty containers" ) {
|
|
const std::array<int, 3> array_a{ { 1, 2, 3 } };
|
|
CHECK_THAT( array_a, RangeEquals( array_a ) );
|
|
}
|
|
SECTION( "Two equal-sized, non-equal, non-empty containers" ) {
|
|
const std::array<int, 3> array_a{ { 1, 2, 3 } };
|
|
const std::array<int, 3> array_b{ { 2, 2, 3 } };
|
|
const std::array<int, 3> array_c{ { 1, 2, 2 } };
|
|
CHECK_THAT( array_a, !RangeEquals( array_b ) );
|
|
CHECK_THAT( array_a, !RangeEquals( array_c ) );
|
|
}
|
|
SECTION( "Two non-equal-sized, non-empty containers (with same first "
|
|
"elements)" ) {
|
|
const std::vector<int> vector_a{ 1, 2, 3 };
|
|
const std::vector<int> vector_b{ 1, 2, 3, 4 };
|
|
CHECK_THAT( vector_a, !RangeEquals( vector_b ) );
|
|
}
|
|
}
|
|
|
|
SECTION( "Custom predicate" ) {
|
|
|
|
auto close_enough = []( int lhs, int rhs ) {
|
|
return std::abs( lhs - rhs ) <= 1;
|
|
};
|
|
|
|
SECTION( "Two equal non-empty containers (close enough)" ) {
|
|
const std::vector<int> vector_a{ { 1, 2, 3 } };
|
|
const std::vector<int> vector_a_plus_1{ { 2, 3, 4 } };
|
|
CHECK_THAT( vector_a, RangeEquals( vector_a_plus_1, close_enough ) );
|
|
}
|
|
SECTION( "Two non-equal non-empty containers (close enough)" ) {
|
|
const std::vector<int> vector_a{ { 1, 2, 3 } };
|
|
const std::vector<int> vector_b{ { 3, 3, 4 } };
|
|
CHECK_THAT( vector_a, !RangeEquals( vector_b, close_enough ) );
|
|
}
|
|
}
|
|
|
|
SECTION( "Ranges that need ADL begin/end" ) {
|
|
unrelated::needs_ADL_begin<int> const
|
|
needs_adl1{ 1, 2, 3, 4, 5 },
|
|
needs_adl2{ 1, 2, 3, 4, 5 },
|
|
needs_adl3{ 2, 3, 4, 5, 6 };
|
|
|
|
REQUIRE_THAT( needs_adl1, RangeEquals( needs_adl2 ) );
|
|
REQUIRE_THAT( needs_adl1, RangeEquals( needs_adl3, []( int l, int r ) {
|
|
return l + 1 == r;
|
|
} ) );
|
|
}
|
|
|
|
SECTION("Check short-circuiting behaviour") {
|
|
with_mocked_iterator_access<int> const mocked1{ 1, 2, 3, 4 };
|
|
|
|
SECTION( "Check short-circuits on failure" ) {
|
|
std::array<int, 4> arr{ { 1, 2, 4, 4 } };
|
|
|
|
REQUIRE_THAT( mocked1, !RangeEquals( arr ) );
|
|
REQUIRE( mocked1.m_derefed[0] );
|
|
REQUIRE( mocked1.m_derefed[1] );
|
|
REQUIRE( mocked1.m_derefed[2] );
|
|
REQUIRE_FALSE( mocked1.m_derefed[3] );
|
|
}
|
|
SECTION("All elements are checked on success") {
|
|
std::array<int, 4> arr{ { 1, 2, 3, 4 } };
|
|
|
|
REQUIRE_THAT( mocked1, RangeEquals( arr ) );
|
|
REQUIRE( mocked1.m_derefed[0] );
|
|
REQUIRE( mocked1.m_derefed[1] );
|
|
REQUIRE( mocked1.m_derefed[2] );
|
|
REQUIRE( mocked1.m_derefed[3] );
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_CASE( "Usage of UnorderedRangeEquals range matcher",
|
|
"[matchers][templated][quantifiers]" ) {
|
|
using Catch::Matchers::UnorderedRangeEquals;
|
|
|
|
// In these tests, the types are always the same - type conversion is in the
|
|
// next section
|
|
SECTION( "Basic usage" ) {
|
|
SECTION( "Empty container matches empty container" ) {
|
|
const std::vector<int> empty_vector;
|
|
CHECK_THAT( empty_vector, UnorderedRangeEquals( empty_vector ) );
|
|
}
|
|
SECTION( "Empty container does not match non-empty container" ) {
|
|
const std::vector<int> empty_vector;
|
|
const std::vector<int> non_empty_vector{ 1 };
|
|
CHECK_THAT( empty_vector,
|
|
!UnorderedRangeEquals( non_empty_vector ) );
|
|
// ...and in reverse
|
|
CHECK_THAT( non_empty_vector,
|
|
!UnorderedRangeEquals( empty_vector ) );
|
|
}
|
|
SECTION( "Two equal 1-length non-empty containers" ) {
|
|
const std::array<int, 1> non_empty_array{ { 1 } };
|
|
CHECK_THAT( non_empty_array,
|
|
UnorderedRangeEquals( non_empty_array ) );
|
|
}
|
|
SECTION( "Two equal-sized, equal, non-empty containers" ) {
|
|
const std::array<int, 3> array_a{ { 1, 2, 3 } };
|
|
CHECK_THAT( array_a, UnorderedRangeEquals( array_a ) );
|
|
}
|
|
SECTION( "Two equal-sized, non-equal, non-empty containers" ) {
|
|
const std::array<int, 3> array_a{ { 1, 2, 3 } };
|
|
const std::array<int, 3> array_b{ { 2, 2, 3 } };
|
|
CHECK_THAT( array_a, !UnorderedRangeEquals( array_b ) );
|
|
}
|
|
SECTION( "Two non-equal-sized, non-empty containers" ) {
|
|
const std::vector<int> vector_a{ 1, 2, 3 };
|
|
const std::vector<int> vector_b{ 1, 2, 3, 4 };
|
|
CHECK_THAT( vector_a, !UnorderedRangeEquals( vector_b ) );
|
|
}
|
|
}
|
|
|
|
SECTION( "Custom predicate" ) {
|
|
|
|
auto close_enough = []( int lhs, int rhs ) {
|
|
return std::abs( lhs - rhs ) <= 1;
|
|
};
|
|
|
|
SECTION( "Two equal non-empty containers (close enough)" ) {
|
|
const std::vector<int> vector_a{ { 1, 10, 20 } };
|
|
const std::vector<int> vector_a_plus_1{ { 11, 21, 2 } };
|
|
CHECK_THAT( vector_a,
|
|
UnorderedRangeEquals( vector_a_plus_1, close_enough ) );
|
|
}
|
|
SECTION( "Two non-equal non-empty containers (close enough)" ) {
|
|
const std::vector<int> vector_a{ { 1, 10, 21 } };
|
|
const std::vector<int> vector_b{ { 11, 21, 3 } };
|
|
CHECK_THAT( vector_a,
|
|
!UnorderedRangeEquals( vector_b, close_enough ) );
|
|
}
|
|
}
|
|
|
|
|
|
SECTION( "Ranges that need ADL begin/end" ) {
|
|
unrelated::needs_ADL_begin<int> const
|
|
needs_adl1{ 1, 2, 3, 4, 5 },
|
|
needs_adl2{ 1, 2, 3, 4, 5 };
|
|
|
|
REQUIRE_THAT( needs_adl1, UnorderedRangeEquals( needs_adl2 ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return true if the type given has a random access iterator type.
|
|
*/
|
|
template <typename Container>
|
|
static constexpr bool ContainerIsRandomAccess( const Container& ) {
|
|
using array_iter_category = typename std::iterator_traits<
|
|
typename Container::iterator>::iterator_category;
|
|
|
|
return std::is_base_of<std::random_access_iterator_tag,
|
|
array_iter_category>::value;
|
|
}
|
|
|
|
TEST_CASE( "Type conversions of RangeEquals and similar",
|
|
"[matchers][templated][quantifiers]" ) {
|
|
using Catch::Matchers::RangeEquals;
|
|
using Catch::Matchers::UnorderedRangeEquals;
|
|
|
|
// In these test, we can always test RangeEquals and
|
|
// UnorderedRangeEquals in the same way, since we're mostly
|
|
// testing the template type deductions (and RangeEquals
|
|
// implies UnorderedRangeEquals)
|
|
|
|
SECTION( "Container conversions" ) {
|
|
SECTION( "Two equal containers of different container types" ) {
|
|
const std::array<int, 3> array_int_a{ { 1, 2, 3 } };
|
|
const int c_array[3] = { 1, 2, 3 };
|
|
CHECK_THAT( array_int_a, RangeEquals( c_array ) );
|
|
CHECK_THAT( array_int_a, UnorderedRangeEquals( c_array ) );
|
|
}
|
|
SECTION( "Two equal containers of different container types "
|
|
"(differ in array N)" ) {
|
|
const std::array<int, 3> array_int_3{ { 1, 2, 3 } };
|
|
const std::array<int, 4> array_int_4{ { 1, 2, 3, 4 } };
|
|
CHECK_THAT( array_int_3, !RangeEquals( array_int_4 ) );
|
|
CHECK_THAT( array_int_3, !UnorderedRangeEquals( array_int_4 ) );
|
|
}
|
|
SECTION( "Two equal containers of different container types and value "
|
|
"types" ) {
|
|
const std::array<int, 3> array_int_a{ { 1, 2, 3 } };
|
|
const std::vector<int> vector_char_a{ 1, 2, 3 };
|
|
CHECK_THAT( array_int_a, RangeEquals( vector_char_a ) );
|
|
CHECK_THAT( array_int_a, UnorderedRangeEquals( vector_char_a ) );
|
|
}
|
|
SECTION( "Two equal containers, one random access, one not" ) {
|
|
const std::array<int, 3> array_int_a{ { 1, 2, 3 } };
|
|
const std::list<int> list_char_a{ 1, 2, 3 };
|
|
|
|
// Verify these types really are different in random access nature
|
|
STATIC_REQUIRE( ContainerIsRandomAccess( array_int_a ) !=
|
|
ContainerIsRandomAccess( list_char_a ) );
|
|
|
|
CHECK_THAT( array_int_a, RangeEquals( list_char_a ) );
|
|
CHECK_THAT( array_int_a, UnorderedRangeEquals( list_char_a ) );
|
|
}
|
|
}
|
|
|
|
SECTION( "Value type" ) {
|
|
SECTION( "Two equal containers of different value types" ) {
|
|
const std::vector<int> vector_int_a{ 1, 2, 3 };
|
|
const std::vector<char> vector_char_a{ 1, 2, 3 };
|
|
CHECK_THAT( vector_int_a, RangeEquals( vector_char_a ) );
|
|
CHECK_THAT( vector_int_a, UnorderedRangeEquals( vector_char_a ) );
|
|
}
|
|
SECTION( "Two non-equal containers of different value types" ) {
|
|
const std::vector<int> vector_int_a{ 1, 2, 3 };
|
|
const std::vector<char> vector_char_b{ 1, 2, 2 };
|
|
CHECK_THAT( vector_int_a, !RangeEquals( vector_char_b ) );
|
|
CHECK_THAT( vector_int_a, !UnorderedRangeEquals( vector_char_b ) );
|
|
}
|
|
}
|
|
|
|
SECTION( "Ranges with begin that needs ADL" ) {
|
|
unrelated::needs_ADL_begin<int> a{ 1, 2, 3 }, b{ 3, 2, 1 };
|
|
REQUIRE_THAT( a, !RangeEquals( b ) );
|
|
REQUIRE_THAT( a, UnorderedRangeEquals( b ) );
|
|
}
|
|
|
|
SECTION( "Custom predicate" ) {
|
|
|
|
auto close_enough = []( int lhs, int rhs ) {
|
|
return std::abs( lhs - rhs ) <= 1;
|
|
};
|
|
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SECTION( "Two equal non-empty containers (close enough)" ) {
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const std::vector<int> vector_a{ { 1, 2, 3 } };
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const std::array<char, 3> array_a_plus_1{ { 2, 3, 4 } };
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CHECK_THAT( vector_a,
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RangeEquals( array_a_plus_1, close_enough ) );
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CHECK_THAT( vector_a,
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UnorderedRangeEquals( array_a_plus_1, close_enough ) );
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}
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}
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} |