/*
* Copyright ( c ) 2015 , 2022 , 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
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*/
#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((void *)NULL, 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 NULL 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 NULL 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 NULL because the file is empty.
log_info(gc)("Dummy line" );
EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers" ));
}
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