libvpx: Pull from upstream

source/libvpx/third_party/googletest/src/test/gtest_stress_test.cc

-// Copyright 2007, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Author: wan@google.com (Zhanyong Wan)
-
-// Tests that SCOPED_TRACE() and various Google Test assertions can be
-// used in a large number of threads concurrently.
-
-#include "gtest/gtest.h"
-
-#include <iostream>
-#include <vector>
-
-// We must define this macro in order to #include
-// gtest-internal-inl.h.  This is how Google Test prevents a user from
-// accidentally depending on its internal implementation.
-#define GTEST_IMPLEMENTATION_ 1
-#include "src/gtest-internal-inl.h"
-#undef GTEST_IMPLEMENTATION_
-
-#if GTEST_IS_THREADSAFE
-
-namespace testing {
-namespace {
-
-using internal::Notification;
-using internal::String;
-using internal::TestPropertyKeyIs;
-using internal::ThreadWithParam;
-using internal::scoped_ptr;
-
-// In order to run tests in this file, for platforms where Google Test is
-// thread safe, implement ThreadWithParam. See the description of its API
-// in gtest-port.h, where it is defined for already supported platforms.
-
-// How many threads to create?
-const int kThreadCount = 50;
-
-String IdToKey(int id, const char* suffix) {
-  Message key;
-  key << "key_" << id << "_" << suffix;
-  return key.GetString();
-}
-
-String IdToString(int id) {
-  Message id_message;
-  id_message << id;
-  return id_message.GetString();
-}
-
-void ExpectKeyAndValueWereRecordedForId(
-    const std::vector<TestProperty>& properties,
-    int id, const char* suffix) {
-  TestPropertyKeyIs matches_key(IdToKey(id, suffix).c_str());
-  const std::vector<TestProperty>::const_iterator property =
-      std::find_if(properties.begin(), properties.end(), matches_key);
-  ASSERT_TRUE(property != properties.end())
-      << "expecting " << suffix << " value for id " << id;
-  EXPECT_STREQ(IdToString(id).c_str(), property->value());
-}
-
-// Calls a large number of Google Test assertions, where exactly one of them
-// will fail.
-void ManyAsserts(int id) {
-  GTEST_LOG_(INFO) << "Thread #" << id << " running...";
-
-  SCOPED_TRACE(Message() << "Thread #" << id);
-
-  for (int i = 0; i < kThreadCount; i++) {
-    SCOPED_TRACE(Message() << "Iteration #" << i);
-
-    // A bunch of assertions that should succeed.
-    EXPECT_TRUE(true);
-    ASSERT_FALSE(false) << "This shouldn't fail.";
-    EXPECT_STREQ("a", "a");
-    ASSERT_LE(5, 6);
-    EXPECT_EQ(i, i) << "This shouldn't fail.";
-
-    // RecordProperty() should interact safely with other threads as well.
-    // The shared_key forces property updates.
-    Test::RecordProperty(IdToKey(id, "string").c_str(), IdToString(id).c_str());
-    Test::RecordProperty(IdToKey(id, "int").c_str(), id);
-    Test::RecordProperty("shared_key", IdToString(id).c_str());
-
-    // This assertion should fail kThreadCount times per thread.  It
-    // is for testing whether Google Test can handle failed assertions in a
-    // multi-threaded context.
-    EXPECT_LT(i, 0) << "This should always fail.";
-  }
-}
-
-void CheckTestFailureCount(int expected_failures) {
-  const TestInfo* const info = UnitTest::GetInstance()->current_test_info();
-  const TestResult* const result = info->result();
-  GTEST_CHECK_(expected_failures == result->total_part_count())
-      << "Logged " << result->total_part_count() << " failures "
-      << " vs. " << expected_failures << " expected";
-}
-
-// Tests using SCOPED_TRACE() and Google Test assertions in many threads
-// concurrently.
-TEST(StressTest, CanUseScopedTraceAndAssertionsInManyThreads) {
-  {
-    scoped_ptr<ThreadWithParam<int> > threads[kThreadCount];
-    Notification threads_can_start;
-    for (int i = 0; i != kThreadCount; i++)
-      threads[i].reset(new ThreadWithParam<int>(&ManyAsserts,
-                                                i,
-                                                &threads_can_start));
-
-    threads_can_start.Notify();
-
-    // Blocks until all the threads are done.
-    for (int i = 0; i != kThreadCount; i++)
-      threads[i]->Join();
-  }
-
-  // Ensures that kThreadCount*kThreadCount failures have been reported.
-  const TestInfo* const info = UnitTest::GetInstance()->current_test_info();
-  const TestResult* const result = info->result();
-
-  std::vector<TestProperty> properties;
-  // We have no access to the TestResult's list of properties but we can
-  // copy them one by one.
-  for (int i = 0; i < result->test_property_count(); ++i)
-    properties.push_back(result->GetTestProperty(i));
-
-  EXPECT_EQ(kThreadCount * 2 + 1, result->test_property_count())
-      << "String and int values recorded on each thread, "
-      << "as well as one shared_key";
-  for (int i = 0; i < kThreadCount; ++i) {
-    ExpectKeyAndValueWereRecordedForId(properties, i, "string");
-    ExpectKeyAndValueWereRecordedForId(properties, i, "int");
-  }
-  CheckTestFailureCount(kThreadCount*kThreadCount);
-}
-
-void FailingThread(bool is_fatal) {
-  if (is_fatal)
-    FAIL() << "Fatal failure in some other thread. "
-           << "(This failure is expected.)";
-  else
-    ADD_FAILURE() << "Non-fatal failure in some other thread. "
-                  << "(This failure is expected.)";
-}
-
-void GenerateFatalFailureInAnotherThread(bool is_fatal) {
-  ThreadWithParam<bool> thread(&FailingThread, is_fatal, NULL);
-  thread.Join();
-}
-
-TEST(NoFatalFailureTest, ExpectNoFatalFailureIgnoresFailuresInOtherThreads) {
-  EXPECT_NO_FATAL_FAILURE(GenerateFatalFailureInAnotherThread(true));
-  // We should only have one failure (the one from
-  // GenerateFatalFailureInAnotherThread()), since the EXPECT_NO_FATAL_FAILURE
-  // should succeed.
-  CheckTestFailureCount(1);
-}
-
-void AssertNoFatalFailureIgnoresFailuresInOtherThreads() {
-  ASSERT_NO_FATAL_FAILURE(GenerateFatalFailureInAnotherThread(true));
-}
-TEST(NoFatalFailureTest, AssertNoFatalFailureIgnoresFailuresInOtherThreads) {
-  // Using a subroutine, to make sure, that the test continues.
-  AssertNoFatalFailureIgnoresFailuresInOtherThreads();
-  // We should only have one failure (the one from
-  // GenerateFatalFailureInAnotherThread()), since the EXPECT_NO_FATAL_FAILURE
-  // should succeed.
-  CheckTestFailureCount(1);
-}
-
-TEST(FatalFailureTest, ExpectFatalFailureIgnoresFailuresInOtherThreads) {
-  // This statement should fail, since the current thread doesn't generate a
-  // fatal failure, only another one does.
-  EXPECT_FATAL_FAILURE(GenerateFatalFailureInAnotherThread(true), "expected");
-  CheckTestFailureCount(2);
-}
-
-TEST(FatalFailureOnAllThreadsTest, ExpectFatalFailureOnAllThreads) {
-  // This statement should succeed, because failures in all threads are
-  // considered.
-  EXPECT_FATAL_FAILURE_ON_ALL_THREADS(
-      GenerateFatalFailureInAnotherThread(true), "expected");
-  CheckTestFailureCount(0);
-  // We need to add a failure, because main() checks that there are failures.
-  // But when only this test is run, we shouldn't have any failures.
-  ADD_FAILURE() << "This is an expected non-fatal failure.";
-}
-
-TEST(NonFatalFailureTest, ExpectNonFatalFailureIgnoresFailuresInOtherThreads) {
-  // This statement should fail, since the current thread doesn't generate a
-  // fatal failure, only another one does.
-  EXPECT_NONFATAL_FAILURE(GenerateFatalFailureInAnotherThread(false),
-                          "expected");
-  CheckTestFailureCount(2);
-}
-
-TEST(NonFatalFailureOnAllThreadsTest, ExpectNonFatalFailureOnAllThreads) {
-  // This statement should succeed, because failures in all threads are
-  // considered.
-  EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(
-      GenerateFatalFailureInAnotherThread(false), "expected");
-  CheckTestFailureCount(0);
-  // We need to add a failure, because main() checks that there are failures,
-  // But when only this test is run, we shouldn't have any failures.
-  ADD_FAILURE() << "This is an expected non-fatal failure.";
-}
-
-}  // namespace
-}  // namespace testing
-
-int main(int argc, char **argv) {
-  testing::InitGoogleTest(&argc, argv);
-
-  const int result = RUN_ALL_TESTS();  // Expected to fail.
-  GTEST_CHECK_(result == 1) << "RUN_ALL_TESTS() did not fail as expected";
-
-  printf("\nPASS\n");
-  return 0;
-}
-
-#else
-TEST(StressTest,
-     DISABLED_ThreadSafetyTestsAreSkippedWhenGoogleTestIsNotThreadSafe) {
-}
-
-int main(int argc, char **argv) {
-  testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
-#endif  // GTEST_IS_THREADSAFE