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123 lines
4.4 KiB
C++
123 lines
4.4 KiB
C++
// Copyright 2007, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: wan@google.com (Zhanyong Wan)
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// Tests that SCOPED_TRACE() and various Google Test assertions can be
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// used in a large number of threads concurrently.
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#include <iostream>
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#include <gtest/gtest.h>
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// We must define this macro in order to #include
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// gtest-internal-inl.h. This is how Google Test prevents a user from
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// accidentally depending on its internal implementation.
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#define GTEST_IMPLEMENTATION
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#include "src/gtest-internal-inl.h"
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#undef GTEST_IMPLEMENTATION
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namespace testing {
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namespace {
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using internal::List;
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using internal::ListNode;
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using internal::String;
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using internal::TestProperty;
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using internal::TestPropertyKeyIs;
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// How many threads to create?
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const int kThreadCount = 50;
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String IdToKey(int id, const char* suffix) {
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Message key;
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key << "key_" << id << "_" << suffix;
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return key.GetString();
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}
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String IdToString(int id) {
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Message id_message;
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id_message << id;
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return id_message.GetString();
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}
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void ExpectKeyAndValueWereRecordedForId(const List<TestProperty>& properties,
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int id,
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const char* suffix) {
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TestPropertyKeyIs matches_key(IdToKey(id, suffix).c_str());
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const ListNode<TestProperty>* node = properties.FindIf(matches_key);
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EXPECT_TRUE(node != NULL) << "expecting " << suffix << " node for id " << id;
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EXPECT_STREQ(IdToString(id).c_str(), node->element().value());
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}
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// Calls a large number of Google Test assertions, where exactly one of them
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// will fail.
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void ManyAsserts(int id) {
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::std::cout << "Thread #" << id << " running...\n";
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SCOPED_TRACE(Message() << "Thread #" << id);
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for (int i = 0; i < kThreadCount; i++) {
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SCOPED_TRACE(Message() << "Iteration #" << i);
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// A bunch of assertions that should succeed.
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EXPECT_TRUE(true);
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ASSERT_FALSE(false) << "This shouldn't fail.";
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EXPECT_STREQ("a", "a");
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ASSERT_LE(5, 6);
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EXPECT_EQ(i, i) << "This shouldn't fail.";
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// RecordProperty() should interact safely with other threads as well.
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// The shared_key forces property updates.
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Test::RecordProperty(IdToKey(id, "string").c_str(), IdToString(id).c_str());
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Test::RecordProperty(IdToKey(id, "int").c_str(), id);
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Test::RecordProperty("shared_key", IdToString(id).c_str());
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// This assertion should fail kThreadCount times per thread. It
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// is for testing whether Google Test can handle failed assertions in a
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// multi-threaded context.
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EXPECT_LT(i, 0) << "This should always fail.";
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}
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}
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// Tests using SCOPED_TRACE() and Google Test assertions in many threads
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// concurrently.
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TEST(StressTest, CanUseScopedTraceAndAssertionsInManyThreads) {
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// TODO(wan): when Google Test is made thread-safe, run
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// ManyAsserts() in many threads here.
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}
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} // namespace
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} // namespace testing
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int main(int argc, char **argv) {
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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