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/*
* Copyright 2022 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 "log_capture.h"
#include <gtest/gtest.h>
#include <cstring>
#include <memory>
#include <string>
#include "common/init_flags.h"
#include "os/log.h"
namespace {
const char* test_flags[] = {
"INIT_logging_debug_enabled_for_all=true",
nullptr,
};
constexpr char kEmptyLine[] = "";
constexpr char kLogError[] = "LOG_ERROR";
constexpr char kLogWarn[] = "LOG_WARN";
constexpr char kLogInfo[] = "LOG_INFO";
constexpr char kLogDebug[] = "LOG_DEBUG";
constexpr char kLogVerbose[] = "LOG_VERBOSE";
} // namespace
namespace bluetooth {
namespace testing {
class LogCaptureTest : public ::testing::Test {
protected:
void SetUp() override {}
void TearDown() override {}
// The line number is part of the log output and must be factored out
size_t CalibrateOneLine(const char* log_line) {
LOG_INFO("%s", log_line);
return strlen(log_line);
}
};
TEST_F(LogCaptureTest, no_output) {
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
ASSERT_TRUE(log_capture->Size() == 0);
}
TEST_F(LogCaptureTest, truncate) {
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
CalibrateOneLine(kLogError);
size_t size = log_capture->Size();
ASSERT_TRUE(size > 0);
log_capture->Reset();
ASSERT_EQ(0UL, log_capture->Size());
CalibrateOneLine(kLogError);
ASSERT_EQ(size, log_capture->Size());
}
TEST_F(LogCaptureTest, log_size) {
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
CalibrateOneLine(kEmptyLine);
size_t empty_line_size = log_capture->Size();
log_capture->Reset();
std::vector<std::string> log_lines = {
kLogError,
kLogWarn,
kLogInfo,
};
size_t msg_size{0};
for (auto& log_line : log_lines) {
msg_size += CalibrateOneLine(log_line.c_str());
}
ASSERT_EQ(empty_line_size * log_lines.size() + msg_size, log_capture->Size());
ASSERT_TRUE(log_capture->Rewind()->Find(kLogError));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogWarn));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogInfo));
}
TEST_F(LogCaptureTest, typical) {
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
LOG_ERROR("%s", kLogError);
LOG_WARN("%s", kLogWarn);
LOG_INFO("%s", kLogInfo);
LOG_DEBUG("%s", kLogDebug);
LOG_VERBOSE("%s", kLogVerbose);
ASSERT_TRUE(log_capture->Rewind()->Find(kLogError));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogWarn));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogInfo));
ASSERT_FALSE(log_capture->Rewind()->Find(kLogDebug));
ASSERT_FALSE(log_capture->Rewind()->Find(kLogVerbose));
}
TEST_F(LogCaptureTest, with_logging_debug_enabled_for_all) {
bluetooth::common::InitFlags::Load(test_flags);
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
LOG_ERROR("%s", kLogError);
LOG_WARN("%s", kLogWarn);
LOG_INFO("%s", kLogInfo);
LOG_DEBUG("%s", kLogDebug);
LOG_VERBOSE("%s", kLogVerbose);
ASSERT_TRUE(log_capture->Rewind()->Find(kLogError));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogWarn));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogInfo));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogDebug));
ASSERT_TRUE(log_capture->Rewind()->Find(kLogVerbose));
bluetooth::common::InitFlags::Load(nullptr);
}
TEST_F(LogCaptureTest, wait_until_log_contains) {
bluetooth::common::InitFlags::Load(test_flags);
std::unique_ptr<LogCapture> log_capture = std::make_unique<LogCapture>();
LOG_DEBUG("%s", kLogDebug);
std::promise<void> promise;
log_capture->WaitUntilLogContains(&promise, kLogDebug);
bluetooth::common::InitFlags::Load(nullptr);
}
} // namespace testing
} // namespace bluetooth
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