blob: fbd7c36eb5114fcf1f0edc38e823eaff1b60afec [file] [log] [blame]
// Copyright 2018 The Chromium OS 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 "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();
instance_ = this;
ScopedMockLog::~ScopedMockLog() {
instance_ = nullptr;
// static
bool ScopedMockLog::HandleLogMessages(int severity,
const char* file,
int line,
size_t message_start,
const string& full_message) {
// |full_message| looks like this if it came through MemoryLog:
// "[0514/] 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() = default;
} // namespace shill