gpu/config/gpu_util_unittest.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gpu/config/gpu_util.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7 #include "ui/gl/gl_switches.h"
   8
   9 namespace gpu {
  10
  11 TEST(GpuUtilTest, GpuSwitchingOptionFromString) {
  12   // Test StringToGpuSwitchingOption.
  13   EXPECT_EQ(StringToGpuSwitchingOption(
  14                 switches::kGpuSwitchingOptionNameAutomatic),
  15             GPU_SWITCHING_OPTION_AUTOMATIC);
  16   EXPECT_EQ(StringToGpuSwitchingOption(
  17                 switches::kGpuSwitchingOptionNameForceDiscrete),
  18             GPU_SWITCHING_OPTION_FORCE_DISCRETE);
  19   EXPECT_EQ(StringToGpuSwitchingOption(
  20                 switches::kGpuSwitchingOptionNameForceIntegrated),
  21             GPU_SWITCHING_OPTION_FORCE_INTEGRATED);
  22   EXPECT_EQ(StringToGpuSwitchingOption("xxx"), GPU_SWITCHING_OPTION_UNKNOWN);
  23 }
  24
  25 TEST(GpuUtilTest, GpuSwitchingOptionToString) {
  26   // Test GpuSwitchingOptionToString.
  27   EXPECT_STREQ(
  28       GpuSwitchingOptionToString(GPU_SWITCHING_OPTION_AUTOMATIC).c_str(),
  29       switches::kGpuSwitchingOptionNameAutomatic);
  30   EXPECT_STREQ(
  31       GpuSwitchingOptionToString(GPU_SWITCHING_OPTION_FORCE_DISCRETE).c_str(),
  32       switches::kGpuSwitchingOptionNameForceDiscrete);
  33   EXPECT_STREQ(
  34       GpuSwitchingOptionToString(GPU_SWITCHING_OPTION_FORCE_INTEGRATED).c_str(),
  35       switches::kGpuSwitchingOptionNameForceIntegrated);
  36 }
  37
  38 TEST(GpuUtilTest, MergeFeatureSets) {
  39   {
  40     // Merge two empty sets.
  41     std::set<int> src;
  42     std::set<int> dst;
  43     EXPECT_TRUE(dst.empty());
  44     MergeFeatureSets(&dst, src);
  45     EXPECT_TRUE(dst.empty());
  46   }
  47   {
  48     // Merge an empty set into a set with elements.
  49     std::set<int> src;
  50     std::set<int> dst;
  51     dst.insert(1);
  52     EXPECT_EQ(1u, dst.size());
  53     MergeFeatureSets(&dst, src);
  54     EXPECT_EQ(1u, dst.size());
  55   }
  56   {
  57     // Merge two sets where the source elements are already in the target set.
  58     std::set<int> src;
  59     std::set<int> dst;
  60     src.insert(1);
  61     dst.insert(1);
  62     EXPECT_EQ(1u, dst.size());
  63     MergeFeatureSets(&dst, src);
  64     EXPECT_EQ(1u, dst.size());
  65   }
  66   {
  67     // Merge two sets with different elements.
  68     std::set<int> src;
  69     std::set<int> dst;
  70     src.insert(1);
  71     dst.insert(2);
  72     EXPECT_EQ(1u, dst.size());
  73     MergeFeatureSets(&dst, src);
  74     EXPECT_EQ(2u, dst.size());
  75   }
  76 }
  77
  78 }  // namespace gpu