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// Copyright 2017 Google Inc.
//
// 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 <array>
#include "internal/linux_features_aggregator.h"
#include "gtest/gtest.h"
namespace cpu_features {
namespace {
struct Features {
bool a = false;
bool b = false;
bool c = false;
};
DECLARE_SETTER(Features, a)
DECLARE_SETTER(Features, b)
DECLARE_SETTER(Features, c)
class LinuxFeatureAggregatorTest : public testing::Test {
public:
const std::array<CapabilityConfig, 3> kConfigs = {
{{{0b0001, 0b0000}, "a", &set_a},
{{0b0010, 0b0000}, "b", &set_b},
{{0b0000, 0b1100}, "c", &set_c}}};
};
TEST_F(LinuxFeatureAggregatorTest, FromFlagsEmpty) {
Features features;
CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str(""),
&features);
EXPECT_FALSE(features.a);
EXPECT_FALSE(features.b);
EXPECT_FALSE(features.c);
}
TEST_F(LinuxFeatureAggregatorTest, FromFlagsAllSet) {
Features features;
CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str("a c b"),
&features);
EXPECT_TRUE(features.a);
EXPECT_TRUE(features.b);
EXPECT_TRUE(features.c);
}
TEST_F(LinuxFeatureAggregatorTest, FromFlagsOnlyA) {
Features features;
CpuFeatures_SetFromFlags(kConfigs.size(), kConfigs.data(), str("a"),
&features);
EXPECT_TRUE(features.a);
EXPECT_FALSE(features.b);
EXPECT_FALSE(features.c);
}
TEST_F(LinuxFeatureAggregatorTest, FromHwcapsNone) {
HardwareCapabilities capability;
capability.hwcaps = 0; // matches none
capability.hwcaps2 = 0; // matches none
Features features;
CpuFeatures_OverrideFromHwCaps(kConfigs.size(), kConfigs.data(), capability,
&features);
EXPECT_FALSE(features.a);
EXPECT_FALSE(features.b);
EXPECT_FALSE(features.c);
}
TEST_F(LinuxFeatureAggregatorTest, FromHwcapsSet) {
HardwareCapabilities capability;
capability.hwcaps = 0b0010; // matches b but not a
capability.hwcaps2 = 0b1111; // matches c
Features features;
CpuFeatures_OverrideFromHwCaps(kConfigs.size(), kConfigs.data(), capability,
&features);
EXPECT_FALSE(features.a);
EXPECT_TRUE(features.b);
EXPECT_TRUE(features.c);
}
} // namespace
} // namespace cpu_features
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