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* Copyright 2004--2011, Google Inc.
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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 met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "talk/base/fileutils.h"
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#include "talk/base/gunit.h"
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#include "talk/base/logging.h"
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#include "talk/base/pathutils.h"
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#include "talk/base/stream.h"
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#include "talk/base/thread.h"
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// Test basic logging operation. We should get the INFO log but not the VERBOSE.
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// We should restore the correct global state at the end.
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TEST(LogTest, SingleStream) {
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int sev = LogMessage::GetLogToStream(NULL);
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StringStream stream(str);
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LogMessage::AddLogToStream(&stream, LS_INFO);
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EXPECT_EQ(LS_INFO, LogMessage::GetLogToStream(&stream));
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LOG(LS_INFO) << "INFO";
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LOG(LS_VERBOSE) << "VERBOSE";
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EXPECT_NE(std::string::npos, str.find("INFO"));
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EXPECT_EQ(std::string::npos, str.find("VERBOSE"));
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LogMessage::RemoveLogToStream(&stream);
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EXPECT_EQ(LogMessage::NO_LOGGING, LogMessage::GetLogToStream(&stream));
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EXPECT_EQ(sev, LogMessage::GetLogToStream(NULL));
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// Test using multiple log streams. The INFO stream should get the INFO message,
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// the VERBOSE stream should get the INFO and the VERBOSE.
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// We should restore the correct global state at the end.
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TEST(LogTest, MultipleStreams) {
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int sev = LogMessage::GetLogToStream(NULL);
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std::string str1, str2;
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StringStream stream1(str1), stream2(str2);
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LogMessage::AddLogToStream(&stream1, LS_INFO);
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LogMessage::AddLogToStream(&stream2, LS_VERBOSE);
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EXPECT_EQ(LS_INFO, LogMessage::GetLogToStream(&stream1));
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EXPECT_EQ(LS_VERBOSE, LogMessage::GetLogToStream(&stream2));
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LOG(LS_INFO) << "INFO";
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LOG(LS_VERBOSE) << "VERBOSE";
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EXPECT_NE(std::string::npos, str1.find("INFO"));
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EXPECT_EQ(std::string::npos, str1.find("VERBOSE"));
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EXPECT_NE(std::string::npos, str2.find("INFO"));
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EXPECT_NE(std::string::npos, str2.find("VERBOSE"));
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LogMessage::RemoveLogToStream(&stream2);
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LogMessage::RemoveLogToStream(&stream1);
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EXPECT_EQ(LogMessage::NO_LOGGING, LogMessage::GetLogToStream(&stream2));
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EXPECT_EQ(LogMessage::NO_LOGGING, LogMessage::GetLogToStream(&stream1));
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EXPECT_EQ(sev, LogMessage::GetLogToStream(NULL));
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// Ensure we don't crash when adding/removing streams while threads are going.
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// We should restore the correct global state at the end.
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class LogThread : public Thread {
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// LS_SENSITIVE to avoid cluttering up any real logging going on
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LOG(LS_SENSITIVE) << "LOG";
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TEST(LogTest, MultipleThreads) {
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int sev = LogMessage::GetLogToStream(NULL);
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LogThread thread1, thread2, thread3;
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NullStream stream1, stream2, stream3;
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for (int i = 0; i < 1000; ++i) {
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LogMessage::AddLogToStream(&stream1, LS_INFO);
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LogMessage::AddLogToStream(&stream2, LS_VERBOSE);
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LogMessage::AddLogToStream(&stream3, LS_SENSITIVE);
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LogMessage::RemoveLogToStream(&stream1);
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LogMessage::RemoveLogToStream(&stream2);
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LogMessage::RemoveLogToStream(&stream3);
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EXPECT_EQ(sev, LogMessage::GetLogToStream(NULL));
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// Test the time required to write 1000 80-character logs to an unbuffered file.
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TEST(LogTest, Perf) {
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EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
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path.SetPathname(Filesystem::TempFilename(path, "ut"));
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EXPECT_TRUE(stream.Open(path.pathname(), "wb", NULL));
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stream.DisableBuffering();
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LogMessage::AddLogToStream(&stream, LS_SENSITIVE);
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uint32 start = Time(), finish;
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std::string message('X', 80);
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for (int i = 0; i < 1000; ++i) {
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LOG(LS_SENSITIVE) << message;
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LogMessage::RemoveLogToStream(&stream);
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Filesystem::DeleteFile(path);
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LOG(LS_INFO) << "Average log time: " << TimeDiff(finish, start) << " us";
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} // namespace talk_base