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69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/test/mock_log.h"
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namespace base {
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namespace test {
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// static
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MockLog* MockLog::g_instance_ = nullptr;
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Lock MockLog::g_lock;
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MockLog::MockLog() : is_capturing_logs_(false) {
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}
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MockLog::~MockLog() {
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if (is_capturing_logs_) {
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StopCapturingLogs();
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}
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}
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void MockLog::StartCapturingLogs() {
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AutoLock scoped_lock(g_lock);
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// We don't use CHECK(), which can generate a new LOG message, and
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// thus can confuse MockLog objects or other registered
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// LogSinks.
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RAW_CHECK(!is_capturing_logs_);
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RAW_CHECK(!g_instance_);
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is_capturing_logs_ = true;
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g_instance_ = this;
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previous_handler_ = logging::GetLogMessageHandler();
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logging::SetLogMessageHandler(LogMessageHandler);
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}
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void MockLog::StopCapturingLogs() {
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AutoLock scoped_lock(g_lock);
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// We don't use CHECK(), which can generate a new LOG message, and
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// thus can confuse MockLog objects or other registered
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// LogSinks.
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RAW_CHECK(is_capturing_logs_);
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RAW_CHECK(g_instance_ == this);
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is_capturing_logs_ = false;
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logging::SetLogMessageHandler(previous_handler_);
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g_instance_ = nullptr;
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}
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// static
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bool MockLog::LogMessageHandler(int severity,
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const char* file,
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int line,
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size_t message_start,
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const std::string& str) {
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// gMock guarantees thread-safety for calling a mocked method
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// (https://github.com/google/googlemock/blob/master/googlemock/docs/CookBook.md#using-google-mock-and-threads)
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// but we also need to make sure that Start/StopCapturingLogs are synchronized
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// with LogMessageHandler.
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AutoLock scoped_lock(g_lock);
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return g_instance_->Log(severity, file, line, message_start, str);
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}
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} // namespace test
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} // namespace base
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