| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <array> |
| #include <vector> |
| |
| #include "dawn/common/Compiler.h" |
| #include "dawn/common/Enumerator.h" |
| #include "dawn/common/ityp_array.h" |
| #include "dawn/common/ityp_span.h" |
| #include "dawn/common/ityp_vector.h" |
| #include "gtest/gtest.h" |
| |
| namespace dawn { |
| namespace { |
| |
| class EnumeratorTest : public testing::Test { |
| protected: |
| template <typename Index, typename Thing, typename Value> |
| void Check(Thing thingToEnumerate, const Value* values) { |
| size_t i = 0; |
| for (auto [index, value] : Enumerate(thingToEnumerate)) { |
| ASSERT_EQ(index, Index(i)); |
| ASSERT_EQ(value, values[i]); |
| i++; |
| } |
| } |
| |
| template <typename Thing> |
| void CheckEmpty(Thing thingToEnumerate) { |
| for ([[maybe_unused]] auto [index, value] : Enumerate(thingToEnumerate)) { |
| FAIL(); |
| } |
| } |
| |
| using Int = TypedInteger<struct IntT, size_t>; |
| }; |
| |
| // Test that Enumerate works with std::array |
| TEST_F(EnumeratorTest, StdArray) { |
| // Empty array |
| std::array<uint32_t, 0> emptyThing{}; |
| CheckEmpty(emptyThing); |
| |
| // Non-empty array |
| std::array<uint32_t, 3> thing = {37, 45, 67}; |
| Check<size_t>(thing, thing.data()); |
| } |
| |
| // Test that Enumerate works with std::vector |
| TEST_F(EnumeratorTest, StdVector) { |
| // Empty vector |
| std::vector<uint32_t> emptyThing; |
| CheckEmpty(emptyThing); |
| |
| // Non-empty vector |
| std::vector<uint32_t> thing = {{37, 45, 67}}; |
| Check<size_t>(thing, thing.data()); |
| } |
| |
| // Test that Enumerate works with ityp::array |
| TEST_F(EnumeratorTest, ITypArray) { |
| // Empty array |
| ityp::array<Int, uint32_t, 0> emptyThing; |
| CheckEmpty(emptyThing); |
| |
| // Non-empty array |
| ityp::array<Int, uint32_t, 3> thing = {37u, 45u, 67u}; |
| Check<Int>(thing, thing.data()); |
| } |
| |
| // Test that Enumerate works with ityp::span |
| TEST_F(EnumeratorTest, ITypSpan) { |
| // Empty span |
| ityp::span<Int, uint32_t> emptyThing; |
| CheckEmpty(emptyThing); |
| |
| // Empty span for a non-null pointer. |
| uint32_t whatever = 923847; |
| auto emptyThingWithGarbagePointer = ityp::SpanFromUntyped<Int>(&whatever, 0); |
| CheckEmpty(emptyThingWithGarbagePointer); |
| |
| // Non-empty span |
| std::array<uint32_t, 3> backingArray = {{37, 45, 67}}; |
| auto thing = ityp::SpanFromUntyped<Int>(backingArray.data(), 3); |
| Check<Int>(thing, thing.data()); |
| } |
| |
| // Test that Enumerate works with ityp::vector |
| TEST_F(EnumeratorTest, ITypVector) { |
| // Empty vector |
| ityp::vector<Int, uint32_t> emptyThing; |
| CheckEmpty(emptyThing); |
| |
| // Non-empty vector |
| ityp::vector<Int, uint32_t> thing = {{37, 45, 67}}; |
| Check<Int>(thing, thing.data()); |
| } |
| |
| // Test that Enumerate(const container) will give const reference to the values. |
| TEST_F(EnumeratorTest, ConstContainer) { |
| // Non-empty array |
| const ityp::array<Int, uint32_t, 3> values = {37u, 45u, 67u}; |
| for (auto [i, value] : Enumerate(values)) { |
| static_assert(std::is_same_v<decltype(value), const uint32_t&>); |
| } |
| } |
| |
| } // anonymous namespace |
| } // namespace dawn |