| // 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/unix_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 |