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// Copyright 2013 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 "components/crash/core/common/crash_keys.h"
#include <stddef.h>
#include <map>
#include <string>
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/debug/crash_logging.h"
#include "base/format_macros.h"
#include "base/strings/string_piece.h"
#include "base/strings/stringprintf.h"
#include "testing/gtest/include/gtest/gtest.h"
class CrashKeysTest : public testing::Test {
public:
void SetUp() override {
self_ = this;
base::debug::SetCrashKeyReportingFunctions(
&SetCrashKeyValue, &ClearCrashKey);
std::vector<base::debug::CrashKey> keys;
crash_keys::GetCrashKeysForCommandLineSwitches(&keys);
base::debug::InitCrashKeys(keys.data(), keys.size(),
crash_keys::kChunkMaxLength);
ASSERT_FALSE(keys.empty());
}
void TearDown() override {
base::debug::ResetCrashLoggingForTesting();
self_ = NULL;
}
bool HasCrashKey(const std::string& key) {
return keys_.find(key) != keys_.end();
}
std::string GetKeyValue(const std::string& key) {
std::map<std::string, std::string>::const_iterator it = keys_.find(key);
if (it == keys_.end())
return std::string();
return it->second;
}
private:
static void SetCrashKeyValue(const base::StringPiece& key,
const base::StringPiece& value) {
self_->keys_[key.as_string()] = value.as_string();
}
static void ClearCrashKey(const base::StringPiece& key) {
self_->keys_.erase(key.as_string());
}
static CrashKeysTest* self_;
std::map<std::string, std::string> keys_;
};
CrashKeysTest* CrashKeysTest::self_ = NULL;
TEST_F(CrashKeysTest, Switches) {
// Set three switches.
{
base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
for (size_t i = 1; i <= 3; ++i)
command_line.AppendSwitch(base::StringPrintf("--flag-%" PRIuS, i));
crash_keys::SetSwitchesFromCommandLine(command_line, nullptr);
EXPECT_EQ("--flag-1", GetKeyValue("switch-1"));
EXPECT_EQ("--flag-2", GetKeyValue("switch-2"));
EXPECT_EQ("--flag-3", GetKeyValue("switch-3"));
EXPECT_FALSE(HasCrashKey("switch-4"));
}
// Set more than the max switches.
{
base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
const size_t kMax = crash_keys::kSwitchesMaxCount + 2;
EXPECT_GT(kMax, static_cast<size_t>(15));
for (size_t i = 1; i <= kMax; ++i)
command_line.AppendSwitch(base::StringPrintf("--many-%" PRIuS, i));
crash_keys::SetSwitchesFromCommandLine(command_line, nullptr);
EXPECT_EQ("--many-1", GetKeyValue("switch-1"));
EXPECT_EQ("--many-9", GetKeyValue("switch-9"));
EXPECT_EQ("--many-15", GetKeyValue("switch-15"));
EXPECT_FALSE(HasCrashKey("switch-16"));
EXPECT_FALSE(HasCrashKey("switch-17"));
}
// Set fewer to ensure that old ones are erased.
{
base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
for (size_t i = 1; i <= 5; ++i)
command_line.AppendSwitch(base::StringPrintf("--fewer-%" PRIuS, i));
crash_keys::SetSwitchesFromCommandLine(command_line, nullptr);
EXPECT_EQ("--fewer-1", GetKeyValue("switch-1"));
EXPECT_EQ("--fewer-2", GetKeyValue("switch-2"));
EXPECT_EQ("--fewer-3", GetKeyValue("switch-3"));
EXPECT_EQ("--fewer-4", GetKeyValue("switch-4"));
EXPECT_EQ("--fewer-5", GetKeyValue("switch-5"));
for (size_t i = 6; i < 20; ++i)
EXPECT_FALSE(HasCrashKey(base::StringPrintf(crash_keys::kSwitchFormat,
i)));
}
}
namespace {
bool IsBoringFlag(const std::string& flag) {
return flag.compare("--boring") == 0;
}
} // namespace
TEST_F(CrashKeysTest, FilterFlags) {
using crash_keys::kSwitchesMaxCount;
base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
command_line.AppendSwitch("--not-boring-1");
command_line.AppendSwitch("--boring");
// Include the max number of non-boring switches, to make sure that only the
// switches actually included in the crash keys are counted.
for (size_t i = 2; i <= kSwitchesMaxCount; ++i)
command_line.AppendSwitch(base::StringPrintf("--not-boring-%" PRIuS, i));
crash_keys::SetSwitchesFromCommandLine(command_line, &IsBoringFlag);
// If the boring keys are filtered out, every single key should now be
// not-boring.
for (size_t i = 1; i <= kSwitchesMaxCount; ++i) {
std::string switch_name = base::StringPrintf(crash_keys::kSwitchFormat, i);
std::string switch_value = base::StringPrintf("--not-boring-%" PRIuS, i);
EXPECT_EQ(switch_value, GetKeyValue(switch_name)) << "switch_name is " <<
switch_name;
}
}
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