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// Copyright 2020 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#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
namespace wgpu {
template <>
struct IsDawnBitmask<dawn_native::TestAspect> {
static constexpr bool enable = true;
};
} // namespace wgpu
namespace dawn_native {
static_assert(EnumBitmaskSize<TestAspect>::value == 3, "");
TEST(EnumMaskIteratorTests, None) {
for (TestAspect aspect : IterateEnumMask(static_cast<TestAspect>(0))) {
FAIL();
DAWN_UNUSED(aspect);
}
}
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