80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
//
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// Copyright (C) 2012 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "shill/mock_log.h"
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#include <string>
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#include <gtest/gtest.h>
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using std::string;
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using testing::_;
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using testing::AnyNumber;
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namespace shill {
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ScopedMockLog* ScopedMockLog::instance_ = nullptr;
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ScopedMockLog::ScopedMockLog() {
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previous_handler_ = ::logging::GetLogMessageHandler();
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::logging::SetLogMessageHandler(HandleLogMessages);
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instance_ = this;
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}
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ScopedMockLog::~ScopedMockLog() {
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::logging::SetLogMessageHandler(previous_handler_);
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instance_ = nullptr;
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}
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// static
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bool ScopedMockLog::HandleLogMessages(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 string& full_message) {
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CHECK(instance_);
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// |full_message| looks like this if it came through MemoryLog:
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// "[0514/165501:INFO:mock_log_unittest.cc(22)] Some message\n"
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// The user wants to match just the substring "Some message". Strip off the
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// extra stuff. |message_start| is the position where "Some message" begins.
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//
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// Note that the -1 is to remove the trailing return line.
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const string::size_type message_length =
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full_message.length() - message_start - 1;
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const string message(full_message, message_start, message_length);
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// Call Log. Because Log is a mock method, this sets in motion the mocking
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// magic.
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instance_->Log(severity, file, message);
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// Invoke the previously installed message handler if there was one.
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if (instance_->previous_handler_) {
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return (*instance_->previous_handler_)(severity, file, line,
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message_start, full_message);
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}
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// Return false so that messages show up on stderr.
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return false;
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}
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NiceScopedMockLog::NiceScopedMockLog() : ScopedMockLog() {
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EXPECT_CALL(*this, Log(_, _, _)).Times(AnyNumber());
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}
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NiceScopedMockLog::~NiceScopedMockLog() {}
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} // namespace shill
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