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// Copyright (c) 2006-2009 The Chromium 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 <sstream>
#include <string>
#include "base/debug_util.h"
#include "base/logging.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(StackTrace, OutputToStream) {
StackTrace trace;
// Dump the trace into a string.
std::ostringstream os;
trace.OutputToStream(&os);
std::string backtrace_message = os.str();
size_t frames_found = 0;
trace.Addresses(&frames_found);
if (frames_found == 0) {
LOG(ERROR) << "No stack frames found. Skipping rest of test.";
return;
}
// Check if the output has symbol initialization warning. If it does, fail.
if (backtrace_message.find("Dumping unresolved backtrace") !=
std::string::npos) {
LOG(ERROR) << "Unable to resolve symbols. Skipping rest of test.";
return;
}
#if 0
//TODO(ajwong): Disabling checking of symbol resolution since it depends
// on whether or not symbols are present, and there are too many
// configurations to reliably ensure that symbols are findable.
#if defined(OS_MACOSX)
// Symbol resolution via the backtrace_symbol funciton does not work well
// in OsX.
// See this thread:
//
// http://lists.apple.com/archives/darwin-dev/2009/Mar/msg00111.html
//
// Just check instead that we find our way back to the "start" symbol
// which should be the first symbol in the trace.
//
// TODO(port): Find a more reliable way to resolve symbols.
// Expect to at least find main.
EXPECT_TRUE(backtrace_message.find("start") != std::string::npos)
<< "Expected to find start in backtrace:\n"
<< backtrace_message;
#else // defined(OS_MACOSX)
// Expect to at least find main.
EXPECT_TRUE(backtrace_message.find("main") != std::string::npos)
<< "Expected to find main in backtrace:\n"
<< backtrace_message;
#if defined(OS_WIN)
// MSVC doesn't allow the use of C99's __func__ within C++, so we fake it with
// MSVC's __FUNCTION__ macro.
#define __func__ __FUNCTION__
#endif
// Expect to find this function as well.
// Note: This will fail if not linked with -rdynamic (aka -export_dynamic)
EXPECT_TRUE(backtrace_message.find(__func__) != std::string::npos)
<< "Expected to find " << __func__ << " in backtrace:\n"
<< backtrace_message;
#endif // define(OS_MACOSX)
#endif
}
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