blob: 3bd3374436bc97098b4398fbcb4285cb3d2dc645 [file] [log] [blame]
//
// Copyright (C) 2012 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "shill/mock_log.h"
#include <string>
#include <gtest/gtest.h>
using std::string;
using testing::_;
using testing::AnyNumber;
namespace shill {
ScopedMockLog* ScopedMockLog::instance_ = nullptr;
ScopedMockLog::ScopedMockLog() {
previous_handler_ = ::logging::GetLogMessageHandler();
::logging::SetLogMessageHandler(HandleLogMessages);
instance_ = this;
}
ScopedMockLog::~ScopedMockLog() {
::logging::SetLogMessageHandler(previous_handler_);
instance_ = nullptr;
}
// static
bool ScopedMockLog::HandleLogMessages(int severity,
const char* file,
int line,
size_t message_start,
const string& full_message) {
CHECK(instance_);
// |full_message| looks like this if it came through MemoryLog:
// "[0514/165501:INFO:mock_log_test.cc(22)] Some message\n"
// The user wants to match just the substring "Some message". Strip off the
// extra stuff. |message_start| is the position where "Some message" begins.
//
// Note that the -1 is to remove the trailing return line.
const string::size_type message_length =
full_message.length() - message_start - 1;
const string message(full_message, message_start, message_length);
// Call Log. Because Log is a mock method, this sets in motion the mocking
// magic.
instance_->Log(severity, file, message);
// Invoke the previously installed message handler if there was one.
if (instance_->previous_handler_) {
return (*instance_->previous_handler_)(severity, file, line,
message_start, full_message);
}
// Return false so that messages show up on stderr.
return false;
}
NiceScopedMockLog::NiceScopedMockLog() : ScopedMockLog() {
EXPECT_CALL(*this, Log(_, _, _)).Times(AnyNumber());
}
NiceScopedMockLog::~NiceScopedMockLog() {}
} // namespace shill