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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_UNITTEST_UTILITIES_H_
#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_UNITTEST_UTILITIES_H_
// This file contains utilities that make it simpler to write unittests
// that are appropriate for the system_wrappers classes.
#include <stdio.h>
#include <string.h>
#include "webrtc/system_wrappers/interface/trace.h"
namespace webrtc {
class TestTraceCallback : public TraceCallback {
public:
virtual void Print(TraceLevel level, const char* msg, int length) {
if (msg) {
char* cmd_print = new char[length+1];
memcpy(cmd_print, msg, length);
cmd_print[length] = '\0';
printf("%s\n", cmd_print);
fflush(stdout);
delete[] cmd_print;
}
}
};
// A class that turns on tracing to stdout at the beginning of the test,
// and turns it off once the test is finished.
// Intended usage:
// class SomeTest : public ::testing::Test {
// protected:
// SomeTest()
// : trace_(false) {} // Change to true to turn on tracing.
// private:
// ScopedTracing trace_;
// }
class ScopedTracing {
public:
explicit ScopedTracing(bool logOn) {
logging_ = logOn;
StartTrace();
}
~ScopedTracing() {
StopTrace();
}
private:
void StartTrace() {
if (logging_) {
Trace::CreateTrace();
Trace::SetLevelFilter(webrtc::kTraceAll);
Trace::SetTraceCallback(&trace_);
}
}
void StopTrace() {
if (logging_) {
Trace::SetTraceCallback(NULL);
Trace::ReturnTrace();
}
}
private:
bool logging_;
TestTraceCallback trace_;
};
} // namespace webrtc
#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_UNITTEST_UTILITIES_H_
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