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https://github.com/google/cpu_features.git
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22a5362e11
* [NFC] clang-format codebase * revert to 80 char columns at the price of uglier table init * Specifically disabling clang-format for table initialization
106 lines
3.1 KiB
C++
106 lines
3.1 KiB
C++
// Copyright 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/unix_features_aggregator.h"
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#include <array>
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#include "gtest/gtest.h"
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namespace cpu_features {
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namespace {
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struct Features {
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bool a = false;
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bool b = false;
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bool c = false;
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};
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enum eFeatures { TEST_a, TEST_b, TEST_c };
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DECLARE_SETTER_AND_GETTER(Features, a)
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DECLARE_SETTER_AND_GETTER(Features, b)
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DECLARE_SETTER_AND_GETTER(Features, c)
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class LinuxFeatureAggregatorTest : public testing::Test {
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public:
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const std::array<CapabilityConfig, 3> kConfigs = {
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{{{0b0001, 0b0000}, "a", &set_a, &get_a},
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{{0b0010, 0b0000}, "b", &set_b, &get_b},
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{{0b0000, 0b1100}, "c", &set_c, &get_c}}};
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};
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TEST_F(LinuxFeatureAggregatorTest, FromFlagsEmpty) {
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Features features;
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CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str(""),
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&features);
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EXPECT_FALSE(features.a);
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EXPECT_FALSE(features.b);
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EXPECT_FALSE(features.c);
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EXPECT_FALSE(kConfigs[TEST_a].get_bit(&features));
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}
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TEST_F(LinuxFeatureAggregatorTest, FromFlagsAllSet) {
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Features features;
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CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str("a c b"),
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&features);
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EXPECT_TRUE(features.a);
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EXPECT_TRUE(features.b);
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EXPECT_TRUE(features.c);
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EXPECT_TRUE(kConfigs[TEST_a].get_bit(&features));
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}
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TEST_F(LinuxFeatureAggregatorTest, FromFlagsOnlyA) {
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Features features;
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CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str("a"),
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&features);
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EXPECT_TRUE(features.a);
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EXPECT_FALSE(features.b);
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EXPECT_FALSE(features.c);
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EXPECT_TRUE(kConfigs[TEST_a].get_bit(&features));
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EXPECT_FALSE(kConfigs[TEST_b].get_bit(&features));
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EXPECT_FALSE(kConfigs[TEST_c].get_bit(&features));
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}
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TEST_F(LinuxFeatureAggregatorTest, FromHwcapsNone) {
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HardwareCapabilities capability;
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capability.hwcaps = 0; // matches none
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capability.hwcaps2 = 0; // matches none
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Features features;
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CpuFeatures_OverrideFromHwCaps(kConfigs.size(), kConfigs.data(), capability,
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&features);
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EXPECT_FALSE(features.a);
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EXPECT_FALSE(features.b);
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EXPECT_FALSE(features.c);
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}
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TEST_F(LinuxFeatureAggregatorTest, FromHwcapsSet) {
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HardwareCapabilities capability;
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capability.hwcaps = 0b0010; // matches b but not a
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capability.hwcaps2 = 0b1111; // matches c
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Features features;
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CpuFeatures_OverrideFromHwCaps(kConfigs.size(), kConfigs.data(), capability,
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&features);
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EXPECT_FALSE(features.a);
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EXPECT_TRUE(features.b);
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EXPECT_TRUE(features.c);
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}
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} // namespace
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} // namespace cpu_features
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