| // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/basictypes.h" |
| #include "base/logging.h" |
| |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace logging { |
| |
| namespace { |
| |
| using ::testing::Return; |
| |
| // Needs to be global since log assert handlers can't maintain state. |
| int log_sink_call_count = 0; |
| |
| void LogSink(const std::string& str) { |
| ++log_sink_call_count; |
| } |
| |
| // Class to make sure any manipulations we do to the min log level are |
| // contained (i.e., do not affect other unit tests). |
| class LogStateSaver { |
| public: |
| LogStateSaver() : old_min_log_level_(GetMinLogLevel()) {} |
| |
| ~LogStateSaver() { |
| SetMinLogLevel(old_min_log_level_); |
| SetLogAssertHandler(NULL); |
| SetLogReportHandler(NULL); |
| log_sink_call_count = 0; |
| } |
| |
| private: |
| int old_min_log_level_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LogStateSaver); |
| }; |
| |
| class LoggingTest : public testing::Test { |
| private: |
| LogStateSaver log_state_saver_; |
| }; |
| |
| class MockLogSource { |
| public: |
| MOCK_METHOD0(Log, const char*()); |
| }; |
| |
| TEST_F(LoggingTest, BasicLogging) { |
| MockLogSource mock_log_source; |
| const int kExpectedDebugOrReleaseCalls = 6; |
| const int kExpectedDebugCalls = 6; |
| const int kExpectedCalls = |
| kExpectedDebugOrReleaseCalls + (DEBUG_MODE ? kExpectedDebugCalls : 0); |
| EXPECT_CALL(mock_log_source, Log()).Times(kExpectedCalls). |
| WillRepeatedly(Return("log message")); |
| |
| SetMinLogLevel(LOG_INFO); |
| |
| EXPECT_TRUE(LOG_IS_ON(INFO)); |
| EXPECT_EQ(DEBUG_MODE != 0, DLOG_IS_ON(INFO)); |
| EXPECT_TRUE(VLOG_IS_ON(0)); |
| |
| LOG(INFO) << mock_log_source.Log(); |
| LOG_IF(INFO, true) << mock_log_source.Log(); |
| PLOG(INFO) << mock_log_source.Log(); |
| PLOG_IF(INFO, true) << mock_log_source.Log(); |
| VLOG(0) << mock_log_source.Log(); |
| VLOG_IF(0, true) << mock_log_source.Log(); |
| |
| DLOG(INFO) << mock_log_source.Log(); |
| DLOG_IF(INFO, true) << mock_log_source.Log(); |
| DPLOG(INFO) << mock_log_source.Log(); |
| DPLOG_IF(INFO, true) << mock_log_source.Log(); |
| DVLOG(0) << mock_log_source.Log(); |
| DVLOG_IF(0, true) << mock_log_source.Log(); |
| } |
| |
| TEST_F(LoggingTest, LogIsOn) { |
| #if defined(NDEBUG) |
| const bool kDfatalIsFatal = false; |
| #else // defined(NDEBUG) |
| const bool kDfatalIsFatal = true; |
| #endif // defined(NDEBUG) |
| |
| SetMinLogLevel(LOG_INFO); |
| EXPECT_TRUE(LOG_IS_ON(INFO)); |
| EXPECT_TRUE(LOG_IS_ON(WARNING)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_TRUE(LOG_IS_ON(DFATAL)); |
| |
| SetMinLogLevel(LOG_WARNING); |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_TRUE(LOG_IS_ON(WARNING)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_TRUE(LOG_IS_ON(DFATAL)); |
| |
| SetMinLogLevel(LOG_ERROR); |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_FALSE(LOG_IS_ON(WARNING)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_TRUE(LOG_IS_ON(DFATAL)); |
| |
| SetMinLogLevel(LOG_ERROR_REPORT); |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_FALSE(LOG_IS_ON(WARNING)); |
| EXPECT_FALSE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_EQ(kDfatalIsFatal, LOG_IS_ON(DFATAL)); |
| |
| // LOG_IS_ON(ERROR_REPORT) should always be true. |
| SetMinLogLevel(LOG_FATAL); |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_FALSE(LOG_IS_ON(WARNING)); |
| EXPECT_FALSE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_EQ(kDfatalIsFatal, LOG_IS_ON(DFATAL)); |
| |
| // So should LOG_IS_ON(FATAL). |
| SetMinLogLevel(LOG_FATAL + 1); |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_FALSE(LOG_IS_ON(WARNING)); |
| EXPECT_FALSE(LOG_IS_ON(ERROR)); |
| EXPECT_TRUE(LOG_IS_ON(ERROR_REPORT)); |
| EXPECT_TRUE(LOG_IS_ON(FATAL)); |
| EXPECT_EQ(kDfatalIsFatal, LOG_IS_ON(DFATAL)); |
| } |
| |
| TEST_F(LoggingTest, LoggingIsLazy) { |
| MockLogSource mock_log_source; |
| EXPECT_CALL(mock_log_source, Log()).Times(0); |
| |
| SetMinLogLevel(LOG_WARNING); |
| |
| EXPECT_FALSE(LOG_IS_ON(INFO)); |
| EXPECT_FALSE(DLOG_IS_ON(INFO)); |
| EXPECT_FALSE(VLOG_IS_ON(1)); |
| |
| LOG(INFO) << mock_log_source.Log(); |
| LOG_IF(INFO, false) << mock_log_source.Log(); |
| PLOG(INFO) << mock_log_source.Log(); |
| PLOG_IF(INFO, false) << mock_log_source.Log(); |
| VLOG(1) << mock_log_source.Log(); |
| VLOG_IF(1, true) << mock_log_source.Log(); |
| |
| DLOG(INFO) << mock_log_source.Log(); |
| DLOG_IF(INFO, true) << mock_log_source.Log(); |
| DPLOG(INFO) << mock_log_source.Log(); |
| DPLOG_IF(INFO, true) << mock_log_source.Log(); |
| DVLOG(1) << mock_log_source.Log(); |
| DVLOG_IF(1, true) << mock_log_source.Log(); |
| } |
| |
| TEST_F(LoggingTest, CheckStreamsAreLazy) { |
| MockLogSource mock_log_source, uncalled_mock_log_source; |
| EXPECT_CALL(mock_log_source, Log()).Times(8). |
| WillRepeatedly(Return("check message")); |
| EXPECT_CALL(uncalled_mock_log_source, Log()).Times(0); |
| |
| SetLogAssertHandler(&LogSink); |
| |
| CHECK(mock_log_source.Log()) << uncalled_mock_log_source.Log(); |
| PCHECK(!mock_log_source.Log()) << mock_log_source.Log(); |
| CHECK_EQ(mock_log_source.Log(), mock_log_source.Log()) |
| << uncalled_mock_log_source.Log(); |
| CHECK_NE(mock_log_source.Log(), mock_log_source.Log()) |
| << mock_log_source.Log(); |
| } |
| |
| TEST_F(LoggingTest, DebugLoggingReleaseBehavior) { |
| #if !defined(NDEBUG) |
| int debug_only_variable = 1; |
| #endif |
| // These should avoid emitting references to |debug_only_variable| |
| // in release mode. |
| DLOG_IF(INFO, debug_only_variable) << "test"; |
| DLOG_ASSERT(debug_only_variable) << "test"; |
| DPLOG_IF(INFO, debug_only_variable) << "test"; |
| DVLOG_IF(1, debug_only_variable) << "test"; |
| } |
| |
| TEST_F(LoggingTest, DcheckStreamsAreLazy) { |
| MockLogSource mock_log_source; |
| EXPECT_CALL(mock_log_source, Log()).Times(0); |
| |
| #if !defined(LOGGING_IS_OFFICIAL_BUILD) && defined(NDEBUG) |
| // Unofficial release build. |
| logging::g_enable_dcheck = false; |
| DCHECK(mock_log_source.Log()) << mock_log_source.Log(); |
| DPCHECK(mock_log_source.Log()) << mock_log_source.Log(); |
| DCHECK_EQ(0, 0) << mock_log_source.Log(); |
| DCHECK_EQ(mock_log_source.Log(), static_cast<const char*>(NULL)) |
| << mock_log_source.Log(); |
| #endif // !defined(LOGGING_IS_OFFICIAL_BUILD) && defined(NDEBUG) |
| } |
| |
| TEST_F(LoggingTest, Dcheck) { |
| #if defined(LOGGING_IS_OFFICIAL_BUILD) |
| // Official build. |
| EXPECT_FALSE(DCHECK_IS_ON()); |
| EXPECT_FALSE(DLOG_IS_ON(DCHECK)); |
| #elif defined(NDEBUG) |
| // Unofficial release build. |
| logging::g_enable_dcheck = true; |
| logging::SetLogReportHandler(&LogSink); |
| EXPECT_TRUE(DCHECK_IS_ON()); |
| EXPECT_FALSE(DLOG_IS_ON(DCHECK)); |
| #else |
| // Unofficial debug build. |
| logging::SetLogAssertHandler(&LogSink); |
| EXPECT_TRUE(DCHECK_IS_ON()); |
| EXPECT_TRUE(DLOG_IS_ON(DCHECK)); |
| #endif // defined(LOGGING_IS_OFFICIAL_BUILD) |
| |
| EXPECT_EQ(0, log_sink_call_count); |
| DCHECK(false); |
| EXPECT_EQ(DCHECK_IS_ON() ? 1 : 0, log_sink_call_count); |
| DPCHECK(false); |
| EXPECT_EQ(DCHECK_IS_ON() ? 2 : 0, log_sink_call_count); |
| DCHECK_EQ(0, 1); |
| EXPECT_EQ(DCHECK_IS_ON() ? 3 : 0, log_sink_call_count); |
| } |
| |
| TEST_F(LoggingTest, DcheckReleaseBehavior) { |
| int some_variable = 1; |
| // These should still reference |some_variable| so we don't get |
| // unused variable warnings. |
| DCHECK(some_variable) << "test"; |
| DPCHECK(some_variable) << "test"; |
| DCHECK_EQ(some_variable, 1) << "test"; |
| } |
| |
| } // namespace |
| |
| } // namespace logging |