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/*
* Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "gc/shared/gcTraceTime.inline.hpp"
#include "jvm.h"
#include "logging/log.hpp"
#include "logTestFixture.hpp"
#include "logTestUtils.inline.hpp"
#include "unittest.hpp"
class LogTest : public LogTestFixture {
};
#define LOG_PREFIX_STR "THE_PREFIX "
#define LOG_LINE_STR "a log line"
size_t Test_log_prefix_prefixer(char* buf, size_t len) {
int ret = jio_snprintf(buf, len, LOG_PREFIX_STR);
assert(ret > 0, "Failed to print prefix. Log buffer too small?");
return (size_t) ret;
}
#ifdef ASSERT // 'test' tag is debug only
TEST_VM_F(LogTest, prefix) {
set_log_config(TestLogFileName, "logging+test=trace");
log_trace(logging, test)(LOG_LINE_STR);
EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_PREFIX_STR LOG_LINE_STR));
}
#endif
TEST_VM_F(LogTest, large_message) {
char big_msg[4096] = {0};
char Xchar = '~';
set_log_config(TestLogFileName, "logging=trace");
memset(big_msg, Xchar, sizeof(big_msg) - 1);
log_trace(logging)("%s", big_msg);
AsyncLogWriter::flush();
ResourceMark rm;
FILE* fp = os::fopen(TestLogFileName, "r");
ASSERT_NE(nullptr, fp);
char* output = read_line(fp);
fclose(fp);
size_t count = 0;
for (size_t ps = 0 ; output[ps + count] != '\0'; output[ps + count] == Xchar ? count++ : ps++);
EXPECT_EQ(sizeof(big_msg) - 1, count);
}
TEST_VM_F(LogTest, enabled_logtarget) {
set_log_config(TestLogFileName, "gc=debug");
LogTarget(Debug, gc) log;
EXPECT_TRUE(log.is_enabled());
// Log the line and expect it to be available in the output file.
log.print(LOG_TEST_STRING_LITERAL);
EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
}
TEST_VM_F(LogTest, disabled_logtarget) {
set_log_config(TestLogFileName, "gc=info");
LogTarget(Debug, gc) log;
EXPECT_FALSE(log.is_enabled());
// Try to log, but expect this to be filtered out.
log.print(LOG_TEST_STRING_LITERAL);
// Log a dummy line so that fgets doesn't return nullptr because the file is empty.
log_info(gc)("Dummy line");
EXPECT_FALSE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
}
TEST_VM_F(LogTest, enabled_loghandle) {
set_log_config(TestLogFileName, "gc=debug");
Log(gc) log;
LogHandle log_handle(log);
EXPECT_TRUE(log_handle.is_debug());
// Try to log through a LogHandle.
log_handle.debug("%d workers", 3);
EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
}
TEST_VM_F(LogTest, disabled_loghandle) {
set_log_config(TestLogFileName, "gc=info");
Log(gc) log;
LogHandle log_handle(log);
EXPECT_FALSE(log_handle.is_debug());
// Try to log through a LogHandle.
log_handle.debug("%d workers", 3);
// Log a dummy line so that fgets doesn't return nullptr because the file is empty.
log_info(gc)("Dummy line");
EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
}
TEST_VM_F(LogTest, enabled_logtargethandle) {
set_log_config(TestLogFileName, "gc=debug");
LogTarget(Debug, gc) log;
LogTargetHandle log_handle(log);
EXPECT_TRUE(log_handle.is_enabled());
// Try to log through a LogHandle.
log_handle.print("%d workers", 3);
EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
}
TEST_VM_F(LogTest, disabled_logtargethandle) {
set_log_config(TestLogFileName, "gc=info");
LogTarget(Debug, gc) log;
LogTargetHandle log_handle(log);
EXPECT_FALSE(log_handle.is_enabled());
// Try to log through a LogHandle.
log_handle.print("%d workers", 3);
// Log a dummy line so that fgets doesn't return nullptr because the file is empty.
log_info(gc)("Dummy line");
EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
}
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