kc3-lang/angle/src/common/system_utils_unittest.cpp

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• Hash : 6e2e36cc
  Author :
  Date : 2021-11-19T00:57:29
  

  [Fuchsia] Fix SwiftShader ICD discovery
  
  ANGLE needs to set VK_ICD_FILENAMES for the Vulkan loader to discover
  SwiftShader's ICD. Enable this logic on Fuchsia.
  
  Also updated ConcatenatePath() to handle absolute paths correctly.
  
  Bug: chromium:1225002
  Change-Id: Ib69be0d7dcaef09f1da9d411023e90a3b7b4fca2
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3292347
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/common/system_utils_unittest.cpp

• //
  // Copyright 2019 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  // system_utils_unittest.cpp: Unit tests for ANGLE's system utility functions
  
  #include "gmock/gmock.h"
  #include "gtest/gtest.h"
  
  #include "common/system_utils.h"
  #include "util/test_utils.h"
  
  #include <vector>
  
  using namespace angle;
  
  namespace
  {
  // Test getting the executable path
  TEST(SystemUtils, ExecutablePath)
  {
      // TODO: fuchsia support. http://anglebug.com/3161
  #if !defined(ANGLE_PLATFORM_FUCHSIA)
      std::string executablePath = GetExecutablePath();
      EXPECT_NE("", executablePath);
  #endif
  }
  
  // Test getting the executable directory
  TEST(SystemUtils, ExecutableDir)
  {
      // TODO: fuchsia support. http://anglebug.com/3161
  #if !defined(ANGLE_PLATFORM_FUCHSIA)
      std::string executableDir = GetExecutableDirectory();
      EXPECT_NE("", executableDir);
  
      std::string executablePath = GetExecutablePath();
      EXPECT_LT(executableDir.size(), executablePath.size());
      EXPECT_EQ(0, strncmp(executableDir.c_str(), executablePath.c_str(), executableDir.size()));
  #endif
  }
  
  // Test setting environment variables
  TEST(SystemUtils, Environment)
  {
      constexpr char kEnvVarName[]  = "UNITTEST_ENV_VARIABLE";
      constexpr char kEnvVarValue[] = "The quick brown fox jumps over the lazy dog";
  
      bool setEnvDone = SetEnvironmentVar(kEnvVarName, kEnvVarValue);
      EXPECT_TRUE(setEnvDone);
  
      std::string readback = GetEnvironmentVar(kEnvVarName);
      EXPECT_EQ(kEnvVarValue, readback);
  
      bool unsetEnvDone = UnsetEnvironmentVar(kEnvVarName);
      EXPECT_TRUE(unsetEnvDone);
  
      readback = GetEnvironmentVar(kEnvVarName);
      EXPECT_EQ("", readback);
  }
  
  // Test CPU time measurement with a small operation
  // (pretty much the measurement itself)
  TEST(SystemUtils, CpuTimeSmallOp)
  {
      double cpuTimeStart = GetCurrentProcessCpuTime();
      double cpuTimeEnd   = GetCurrentProcessCpuTime();
      EXPECT_GE(cpuTimeEnd, cpuTimeStart);
  }
  
  // Test CPU time measurement with a sleepy operation
  TEST(SystemUtils, CpuTimeSleepy)
  {
      double wallTimeStart = GetCurrentSystemTime();
      double cpuTimeStart  = GetCurrentProcessCpuTime();
      angle::Sleep(1);
      double cpuTimeEnd  = GetCurrentProcessCpuTime();
      double wallTimeEnd = GetCurrentSystemTime();
      EXPECT_GE(cpuTimeEnd, cpuTimeStart);
      EXPECT_GE(wallTimeEnd - wallTimeStart, cpuTimeEnd - cpuTimeStart);
  }
  
  // Test CPU time measurement with a heavy operation
  TEST(SystemUtils, CpuTimeHeavyOp)
  {
      constexpr size_t bufferSize = 1048576;
      std::vector<uint8_t> buffer(bufferSize, 1);
      double cpuTimeStart = GetCurrentProcessCpuTime();
      memset(buffer.data(), 0, bufferSize);
      double cpuTimeEnd = GetCurrentProcessCpuTime();
      EXPECT_GE(cpuTimeEnd, cpuTimeStart);
  }
  
  #if defined(ANGLE_PLATFORM_POSIX)
  TEST(SystemUtils, ConcatenatePathSimple)
  {
      std::string path1    = "/this/is/path1";
      std::string path2    = "this/is/path2";
      std::string expected = "/this/is/path1/this/is/path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath1Empty)
  {
      std::string path1    = "";
      std::string path2    = "this/is/path2";
      std::string expected = "this/is/path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath2Empty)
  {
      std::string path1    = "/this/is/path1";
      std::string path2    = "";
      std::string expected = "/this/is/path1";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath2FullPath)
  {
      std::string path1    = "/this/is/path1";
      std::string path2    = "/this/is/path2";
      std::string expected = "/this/is/path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePathRedundantSeparators)
  {
      std::string path1    = "/this/is/path1/";
      std::string path2    = "this/is/path2";
      std::string expected = "/this/is/path1/this/is/path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, IsFullPath)
  {
      std::string path1 = "/this/is/path1/";
      std::string path2 = "this/is/path2";
      EXPECT_TRUE(IsFullPath(path1));
      EXPECT_FALSE(IsFullPath(path2));
  }
  #elif defined(ANGLE_PLATFORM_WINDOWS)
  TEST(SystemUtils, ConcatenatePathSimple)
  {
      std::string path1    = "C:\\this\\is\\path1";
      std::string path2    = "this\\is\\path2";
      std::string expected = "C:\\this\\is\\path1\\this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath1Empty)
  {
      std::string path1    = "";
      std::string path2    = "this\\is\\path2";
      std::string expected = "this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath2Empty)
  {
      std::string path1    = "C:\\this\\is\\path1";
      std::string path2    = "";
      std::string expected = "C:\\this\\is\\path1";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePath2FullPath)
  {
      std::string path1    = "C:\\this\\is\\path1";
      std::string path2    = "C:\\this\\is\\path2";
      std::string expected = "C:\\this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePathRedundantSeparators)
  {
      std::string path1    = "C:\\this\\is\\path1\\";
      std::string path2    = "this\\is\\path2";
      std::string expected = "C:\\this\\is\\path1\\this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePathRedundantSeparators2)
  {
      std::string path1    = "C:\\this\\is\\path1\\";
      std::string path2    = "\\this\\is\\path2";
      std::string expected = "C:\\this\\is\\path1\\this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, ConcatenatePathRedundantSeparators3)
  {
      std::string path1    = "C:\\this\\is\\path1";
      std::string path2    = "\\this\\is\\path2";
      std::string expected = "C:\\this\\is\\path1\\this\\is\\path2";
      EXPECT_EQ(ConcatenatePath(path1, path2), expected);
  }
  
  TEST(SystemUtils, IsFullPath)
  {
      std::string path1 = "C:\\this\\is\\path1\\";
      std::string path2 = "this\\is\\path2";
      EXPECT_TRUE(IsFullPath(path1));
      EXPECT_FALSE(IsFullPath(path2));
  }
  #endif
  
  }  // anonymous namespace
  

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