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296 lines
13 KiB
296 lines
13 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "LogBufferTest.h"
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class ChattyLogBufferTest : public LogBufferTest {};
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TEST_P(ChattyLogBufferTest, deduplication_simple) {
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auto make_message = [&](uint32_t sec, const char* tag, const char* msg,
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bool regex = false) -> LogMessage {
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logger_entry entry = {
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.pid = 1, .tid = 1, .sec = sec, .nsec = 1, .lid = LOG_ID_MAIN, .uid = 0};
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std::string message;
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message.push_back(ANDROID_LOG_INFO);
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message.append(tag);
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message.push_back('\0');
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message.append(msg);
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message.push_back('\0');
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return {entry, message, regex};
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};
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// clang-format off
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std::vector<LogMessage> log_messages = {
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make_message(0, "test_tag", "duplicate"),
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make_message(1, "test_tag", "duplicate"),
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make_message(2, "test_tag", "not_same"),
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make_message(3, "test_tag", "duplicate"),
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make_message(4, "test_tag", "duplicate"),
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make_message(5, "test_tag", "not_same"),
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make_message(6, "test_tag", "duplicate"),
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make_message(7, "test_tag", "duplicate"),
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make_message(8, "test_tag", "duplicate"),
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make_message(9, "test_tag", "not_same"),
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make_message(10, "test_tag", "duplicate"),
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make_message(11, "test_tag", "duplicate"),
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make_message(12, "test_tag", "duplicate"),
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make_message(13, "test_tag", "duplicate"),
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make_message(14, "test_tag", "duplicate"),
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make_message(15, "test_tag", "duplicate"),
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make_message(16, "test_tag", "not_same"),
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make_message(100, "test_tag", "duplicate"),
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make_message(200, "test_tag", "duplicate"),
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make_message(300, "test_tag", "duplicate"),
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};
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// clang-format on
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FixupMessages(&log_messages);
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LogMessages(log_messages);
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std::vector<LogMessage> expected_log_messages = {
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make_message(0, "test_tag", "duplicate"),
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make_message(1, "test_tag", "duplicate"),
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make_message(2, "test_tag", "not_same"),
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make_message(3, "test_tag", "duplicate"),
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make_message(4, "test_tag", "duplicate"),
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make_message(5, "test_tag", "not_same"),
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// 3 duplicate logs together print the first, a 1 count chatty message, then the last.
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make_message(6, "test_tag", "duplicate"),
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make_message(7, "chatty", "uid=0\\([^\\)]+\\) [^ ]+ identical 1 line", true),
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make_message(8, "test_tag", "duplicate"),
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make_message(9, "test_tag", "not_same"),
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// 6 duplicate logs together print the first, a 4 count chatty message, then the last.
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make_message(10, "test_tag", "duplicate"),
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make_message(14, "chatty", "uid=0\\([^\\)]+\\) [^ ]+ identical 4 lines", true),
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make_message(15, "test_tag", "duplicate"),
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make_message(16, "test_tag", "not_same"),
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// duplicate logs > 1 minute apart are not deduplicated.
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make_message(100, "test_tag", "duplicate"),
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make_message(200, "test_tag", "duplicate"),
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make_message(300, "test_tag", "duplicate"),
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};
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FixupMessages(&expected_log_messages);
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auto flush_result = FlushMessages();
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CompareLogMessages(expected_log_messages, flush_result.messages);
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};
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TEST_P(ChattyLogBufferTest, deduplication_overflow) {
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auto make_message = [&](uint32_t sec, const char* tag, const char* msg,
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bool regex = false) -> LogMessage {
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logger_entry entry = {
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.pid = 1, .tid = 1, .sec = sec, .nsec = 1, .lid = LOG_ID_MAIN, .uid = 0};
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std::string message;
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message.push_back(ANDROID_LOG_INFO);
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message.append(tag);
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message.push_back('\0');
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message.append(msg);
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message.push_back('\0');
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return {entry, message, regex};
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};
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uint32_t sec = 0;
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std::vector<LogMessage> log_messages = {
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make_message(sec++, "test_tag", "normal"),
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};
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size_t expired_per_chatty_message = std::numeric_limits<uint16_t>::max();
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for (size_t i = 0; i < expired_per_chatty_message + 3; ++i) {
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log_messages.emplace_back(make_message(sec++, "test_tag", "duplicate"));
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}
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log_messages.emplace_back(make_message(sec++, "test_tag", "normal"));
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FixupMessages(&log_messages);
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LogMessages(log_messages);
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std::vector<LogMessage> expected_log_messages = {
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make_message(0, "test_tag", "normal"),
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make_message(1, "test_tag", "duplicate"),
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make_message(expired_per_chatty_message + 1, "chatty",
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"uid=0\\([^\\)]+\\) [^ ]+ identical 65535 lines", true),
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make_message(expired_per_chatty_message + 2, "chatty",
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"uid=0\\([^\\)]+\\) [^ ]+ identical 1 line", true),
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make_message(expired_per_chatty_message + 3, "test_tag", "duplicate"),
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make_message(expired_per_chatty_message + 4, "test_tag", "normal"),
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};
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FixupMessages(&expected_log_messages);
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auto flush_result = FlushMessages();
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CompareLogMessages(expected_log_messages, flush_result.messages);
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}
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TEST_P(ChattyLogBufferTest, deduplication_liblog) {
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auto make_message = [&](uint32_t sec, int32_t tag, int32_t count) -> LogMessage {
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logger_entry entry = {
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.pid = 1, .tid = 1, .sec = sec, .nsec = 1, .lid = LOG_ID_EVENTS, .uid = 0};
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android_log_event_int_t liblog_event = {
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.header.tag = tag, .payload.type = EVENT_TYPE_INT, .payload.data = count};
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return {entry, std::string(reinterpret_cast<char*>(&liblog_event), sizeof(liblog_event)),
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false};
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};
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// LIBLOG_LOG_TAG
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std::vector<LogMessage> log_messages = {
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make_message(0, 1234, 1),
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make_message(1, LIBLOG_LOG_TAG, 3),
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make_message(2, 1234, 2),
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make_message(3, LIBLOG_LOG_TAG, 3),
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make_message(4, LIBLOG_LOG_TAG, 4),
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make_message(5, 1234, 223),
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make_message(6, LIBLOG_LOG_TAG, 2),
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make_message(7, LIBLOG_LOG_TAG, 3),
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make_message(8, LIBLOG_LOG_TAG, 4),
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make_message(9, 1234, 227),
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make_message(10, LIBLOG_LOG_TAG, 1),
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make_message(11, LIBLOG_LOG_TAG, 3),
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make_message(12, LIBLOG_LOG_TAG, 2),
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make_message(13, LIBLOG_LOG_TAG, 3),
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make_message(14, LIBLOG_LOG_TAG, 5),
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make_message(15, 1234, 227),
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make_message(16, LIBLOG_LOG_TAG, 2),
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make_message(17, LIBLOG_LOG_TAG, std::numeric_limits<int32_t>::max()),
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make_message(18, LIBLOG_LOG_TAG, 3),
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make_message(19, LIBLOG_LOG_TAG, 5),
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make_message(20, 1234, 227),
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};
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FixupMessages(&log_messages);
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LogMessages(log_messages);
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std::vector<LogMessage> expected_log_messages = {
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make_message(0, 1234, 1),
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make_message(1, LIBLOG_LOG_TAG, 3),
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make_message(2, 1234, 2),
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make_message(3, LIBLOG_LOG_TAG, 3),
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make_message(4, LIBLOG_LOG_TAG, 4),
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make_message(5, 1234, 223),
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// More than 2 liblog events (3 here), sum their value into the third message.
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make_message(6, LIBLOG_LOG_TAG, 2),
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make_message(8, LIBLOG_LOG_TAG, 7),
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make_message(9, 1234, 227),
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// More than 2 liblog events (5 here), sum their value into the third message.
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make_message(10, LIBLOG_LOG_TAG, 1),
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make_message(14, LIBLOG_LOG_TAG, 13),
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make_message(15, 1234, 227),
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// int32_t max is the max for a chatty message, beyond that we must use new messages.
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make_message(16, LIBLOG_LOG_TAG, 2),
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make_message(17, LIBLOG_LOG_TAG, std::numeric_limits<int32_t>::max()),
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make_message(19, LIBLOG_LOG_TAG, 8),
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make_message(20, 1234, 227),
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};
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FixupMessages(&expected_log_messages);
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auto flush_result = FlushMessages();
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CompareLogMessages(expected_log_messages, flush_result.messages);
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};
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TEST_P(ChattyLogBufferTest, no_leading_chatty_simple) {
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auto make_message = [&](uint32_t sec, int32_t pid, uint32_t uid, uint32_t lid, const char* tag,
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const char* msg, bool regex = false) -> LogMessage {
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logger_entry entry = {.pid = pid, .tid = 1, .sec = sec, .nsec = 1, .lid = lid, .uid = uid};
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std::string message;
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message.push_back(ANDROID_LOG_INFO);
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message.append(tag);
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message.push_back('\0');
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message.append(msg);
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message.push_back('\0');
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return {entry, message, regex};
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};
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// clang-format off
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std::vector<LogMessage> log_messages = {
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make_message(1, 1, 1, LOG_ID_MAIN, "test_tag", "duplicate1"),
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make_message(2, 2, 2, LOG_ID_SYSTEM, "test_tag", "duplicate2"),
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make_message(3, 2, 2, LOG_ID_SYSTEM, "test_tag", "duplicate2"),
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make_message(4, 2, 2, LOG_ID_SYSTEM, "test_tag", "duplicate2"),
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make_message(6, 2, 2, LOG_ID_SYSTEM, "test_tag", "not duplicate2"),
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make_message(7, 1, 1, LOG_ID_MAIN, "test_tag", "duplicate1"),
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make_message(8, 1, 1, LOG_ID_MAIN, "test_tag", "duplicate1"),
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make_message(9, 1, 1, LOG_ID_MAIN, "test_tag", "duplicate1"),
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make_message(10, 1, 1, LOG_ID_MAIN, "test_tag", "not duplicate1"),
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};
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// clang-format on
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FixupMessages(&log_messages);
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LogMessages(log_messages);
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// After logging log_messages, the below is what should be in the buffer:
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// PID=1, LOG_ID_MAIN duplicate1
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// [1] PID=2, LOG_ID_SYSTEM duplicate2
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// PID=2, LOG_ID_SYSTEM chatty drop
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// PID=2, LOG_ID_SYSTEM duplicate2
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// PID=2, LOG_ID_SYSTEM not duplicate2
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// [2] PID=1, LOG_ID_MAIN chatty drop
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// [3] PID=1, LOG_ID_MAIN duplicate1
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// PID=1, LOG_ID_MAIN not duplicate1
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// We then read from the 2nd sequence number, starting from log message [1], but filtering out
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// everything but PID=1, which results in us starting with log message [2], which is a chatty
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// drop. Code prior to this test case would erroneously print it. The intended behavior that
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// this test checks prints logs starting from log message [3].
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// clang-format off
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std::vector<LogMessage> expected_log_messages = {
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make_message(9, 1, 1, LOG_ID_MAIN, "test_tag", "duplicate1"),
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make_message(10, 1, 1, LOG_ID_MAIN, "test_tag", "not duplicate1"),
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};
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FixupMessages(&expected_log_messages);
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// clang-format on
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auto read_log_messages = ReadLogMessagesNonBlockingThread({.pid = 1, .sequence = 2});
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CompareLogMessages(expected_log_messages, read_log_messages);
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}
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TEST_P(ChattyLogBufferTest, no_leading_chatty_tail) {
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auto make_message = [&](uint32_t sec, const char* tag, const char* msg,
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bool regex = false) -> LogMessage {
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logger_entry entry = {
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.pid = 1, .tid = 1, .sec = sec, .nsec = 1, .lid = LOG_ID_MAIN, .uid = 0};
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std::string message;
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message.push_back(ANDROID_LOG_INFO);
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message.append(tag);
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message.push_back('\0');
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message.append(msg);
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message.push_back('\0');
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return {entry, message, regex};
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};
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// clang-format off
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std::vector<LogMessage> log_messages = {
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make_message(1, "test_tag", "duplicate"),
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make_message(2, "test_tag", "duplicate"),
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make_message(3, "test_tag", "duplicate"),
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make_message(4, "test_tag", "not_duplicate"),
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};
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// clang-format on
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FixupMessages(&log_messages);
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LogMessages(log_messages);
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// After logging log_messages, the below is what should be in the buffer:
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// "duplicate"
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// chatty
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// "duplicate"
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// "not duplicate"
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// We then read the tail 3 messages expecting there to not be a chatty message, meaning that we
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// should only see the last two messages.
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// clang-format off
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std::vector<LogMessage> expected_log_messages = {
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make_message(3, "test_tag", "duplicate"),
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make_message(4, "test_tag", "not_duplicate"),
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};
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FixupMessages(&expected_log_messages);
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// clang-format on
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auto read_log_messages = ReadLogMessagesNonBlockingThread({.tail = 3});
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CompareLogMessages(expected_log_messages, read_log_messages);
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}
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INSTANTIATE_TEST_CASE_P(ChattyLogBufferTests, ChattyLogBufferTest, testing::Values("chatty"));
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