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/*
* Copyright (C) 2019 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/log.h>
#include <private/android_logger.h>
#include <stdlib.h>
#include <unistd.h>
#include <regex>
#include <string>
#include <android-base/logging.h>
#include <android-base/macros.h>
#include <android-base/stringprintf.h>
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
using android::base::InitLogging;
using android::base::StderrLogger;
using android::base::StringPrintf;
static std::string MakeLogPattern(int priority, const char* tag, const char* message) {
static const char log_characters[] = "XXVDIWEF";
static_assert(arraysize(log_characters) - 1 == ANDROID_LOG_SILENT,
"Mismatch in size of log_characters and values in android_LogPriority");
priority = priority > ANDROID_LOG_SILENT ? ANDROID_LOG_FATAL : priority;
char log_char = log_characters[priority];
return StringPrintf(R"(\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3} \s*\d+ \s*\d+ %c %s\s*: %s)",
log_char, tag, message);
}
static void CheckMessage(bool expected, const std::string& output, int priority, const char* tag,
const char* message) {
std::regex message_regex(MakeLogPattern(priority, tag, message));
EXPECT_EQ(expected, std::regex_search(output, message_regex)) << message;
}
static void GenerateLogContent() {
__android_log_buf_print(LOG_ID_MAIN, ANDROID_LOG_VERBOSE, "tag", "verbose main");
__android_log_buf_print(LOG_ID_MAIN, ANDROID_LOG_INFO, "tag", "info main");
__android_log_buf_print(LOG_ID_MAIN, ANDROID_LOG_ERROR, "tag", "error main");
__android_log_buf_print(LOG_ID_RADIO, ANDROID_LOG_VERBOSE, "tag", "verbose radio");
__android_log_buf_print(LOG_ID_RADIO, ANDROID_LOG_INFO, "tag", "info radio");
__android_log_buf_print(LOG_ID_RADIO, ANDROID_LOG_ERROR, "tag", "error radio");
__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_VERBOSE, "tag", "verbose system");
__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_INFO, "tag", "info system");
__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_ERROR, "tag", "error system");
__android_log_buf_print(LOG_ID_CRASH, ANDROID_LOG_VERBOSE, "tag", "verbose crash");
__android_log_buf_print(LOG_ID_CRASH, ANDROID_LOG_INFO, "tag", "info crash");
__android_log_buf_print(LOG_ID_CRASH, ANDROID_LOG_ERROR, "tag", "error crash");
}
std::string GetPidString() {
int pid = getpid();
return StringPrintf("%5d", pid);
}
TEST(liblog, default_write) {
CapturedStderr captured_stderr;
InitLogging(nullptr, StderrLogger);
GenerateLogContent();
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error main");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error radio");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error system");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose crash");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info crash");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error crash");
}
TEST(liblog, verbose_write) {
setenv("ANDROID_LOG_TAGS", "*:v", true);
CapturedStderr captured_stderr;
InitLogging(nullptr, StderrLogger);
GenerateLogContent();
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose crash");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info crash");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error crash");
}
TEST(liblog, error_write) {
setenv("ANDROID_LOG_TAGS", "*:e", true);
CapturedStderr captured_stderr;
InitLogging(nullptr, StderrLogger);
GenerateLogContent();
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose main");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info main");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error main");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose radio");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info radio");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error radio");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose system");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info system");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error system");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_VERBOSE, "tag", "verbose crash");
CheckMessage(false, captured_stderr.str(), ANDROID_LOG_INFO, "tag", "info crash");
CheckMessage(true, captured_stderr.str(), ANDROID_LOG_ERROR, "tag", "error crash");
}
TEST(liblog, kernel_no_write) {
CapturedStderr captured_stderr;
InitLogging(nullptr, StderrLogger);
__android_log_buf_print(LOG_ID_KERNEL, ANDROID_LOG_ERROR, "tag", "kernel error");
EXPECT_EQ("", captured_stderr.str());
}
TEST(liblog, binary_no_write) {
CapturedStderr captured_stderr;
InitLogging(nullptr, StderrLogger);
__android_log_buf_print(LOG_ID_EVENTS, ANDROID_LOG_ERROR, "tag", "error events");
__android_log_buf_print(LOG_ID_STATS, ANDROID_LOG_ERROR, "tag", "error stats");
__android_log_buf_print(LOG_ID_SECURITY, ANDROID_LOG_ERROR, "tag", "error security");
__android_log_bswrite(0x12, "events");
__android_log_stats_bwrite(0x34, "stats", strlen("stats"));
__android_log_security_bswrite(0x56, "security");
EXPECT_EQ("", captured_stderr.str());
}
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