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// Copyright 2020 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 "dawn/native/EnumMaskIterator.h"
#include "gtest/gtest.h"
namespace dawn::native {
enum class TestAspect : uint8_t {
Color = 1,
Depth = 2,
Stencil = 4,
};
template <>
struct EnumBitmaskSize<TestAspect> {
static constexpr unsigned value = 3;
};
} // namespace dawn::native
template <>
struct wgpu::IsWGPUBitmask<dawn::native::TestAspect> {
static constexpr bool enable = true;
};
namespace dawn::native {
static_assert(EnumBitmaskSize<TestAspect>::value == 3);
TEST(EnumMaskIteratorTests, None) {
for ([[maybe_unused]] TestAspect aspect : IterateEnumMask(static_cast<TestAspect>(0))) {
// Silence a -Wunreachable-code-loop-increment
if ((0)) {
continue;
}
FAIL();
}
}
TEST(EnumMaskIteratorTests, All) {
TestAspect expected[] = {TestAspect::Color, TestAspect::Depth, TestAspect::Stencil};
uint32_t i = 0;
TestAspect aspects = TestAspect::Color | TestAspect::Depth | TestAspect::Stencil;
for (TestAspect aspect : IterateEnumMask(aspects)) {
EXPECT_EQ(aspect, expected[i++]);
}
}
TEST(EnumMaskIteratorTests, Partial) {
TestAspect expected[] = {TestAspect::Color, TestAspect::Stencil};
uint32_t i = 0;
TestAspect aspects = TestAspect::Stencil | TestAspect::Color;
for (TestAspect aspect : IterateEnumMask(aspects)) {
EXPECT_EQ(aspect, expected[i++]);
}
}
} // namespace dawn::native