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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.log;
import com.yahoo.log.impl.LogUtils;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import java.time.Instant;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Bjorn Borud
*/
@SuppressWarnings({"deprecation", "removal"})
public class VespaFormatterTestCase {
private String hostname;
private String pid;
private String serviceName = "serviceName";
private String app = "tst";
private LogRecord testRecord1;
private LogRecord testRecord2;
private String expected1;
private String expected2;
private String expected3;
private String expected4;
@Before
public void setUp () {
hostname = LogUtils.getHostName();
pid = LogUtils.getPID();
testRecord1 = new LogRecord(Level.INFO, "this is a test");
testRecord1.setInstant(Instant.ofEpochMilli(1098709021843L));
testRecord1.setLongThreadID(123L);
expected1 = "1098709021.843000\t"
+ hostname + "\t"
+ pid
+ "/123" + "\t"
+ "serviceName\t"
+ "tst\t"
+ "info\t"
+ "this is a test\n";
expected2 = "1098709021.843000\t"
+ hostname + "\t"
+ pid
+ "/123" + "\t"
+ "serviceName\t"
+ "-\t"
+ "info\t"
+ "this is a test\n";
testRecord2 = new LogRecord(Level.INFO, "this is a test");
testRecord2.setInstant(Instant.ofEpochMilli(1098709021843L));
testRecord2.setLongThreadID(123L);
testRecord2.setLoggerName("org.foo");
expected3 = "1098709021.843000\t"
+ hostname + "\t"
+ pid
+ "/123" + "\t"
+ "serviceName\t"
+ ".org.foo\t"
+ "info\t"
+ "this is a test\n";
expected4 = "1098709021.843000\t"
+ hostname + "\t"
+ pid
+ "/123" + "\t"
+ "serviceName\t"
+ "tst.org.foo\t"
+ "info\t"
+ "this is a test\n";
}
/**
* Just make sure that the messages are parsed as expected.
*/
@Test
public void testFormatting () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
assertEquals(expected1, formatter.format(testRecord1));
assertEquals(expected4, formatter.format(testRecord2));
VespaFormatter fmt2 = new VespaFormatter(serviceName, null);
assertEquals(expected2, fmt2.format(testRecord1));
assertEquals(expected3, fmt2.format(testRecord2));
}
/**
* test that {0} etc is replaced properly
*/
@Test
public void testTextFormatting () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
LogRecord testRecord = new LogRecord(Level.INFO, "this {1} is {0} test");
testRecord.setInstant(Instant.ofEpochMilli(1098709021843L));
testRecord.setLongThreadID(123L);
testRecord.setLoggerName("org.foo");
Object[] params = { "a small", "message" };
testRecord.setParameters(params);
String expected = "1098709021.843000\t"
+ hostname + "\t"
+ pid
+ "/123" + "\t"
+ "serviceName\t"
+ app
+ ".org.foo\t"
+ "info\t"
+ "this message is a small test\n";
assertEquals(expected, formatter.format(testRecord));
}
/**
* Make sure that the LogMessage parser used in the log server is
* able to parse these messages too.
*/
@Test
public void testParsing () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
LogMessage m;
try {
m = LogMessage.parseNativeFormat(expected1.trim());
assertEquals("this is a test", m.getPayload());
m = LogMessage.parseNativeFormat(formatter.format(testRecord1).trim());
assertEquals("this is a test", m.getPayload());
assertTrue(true);
}
catch (InvalidLogFormatException e) {
System.out.println(e.toString());
fail();
}
}
/**
* This method was used for testing the speed of the formatter.
* We usually do not want to run this in normal testing, it was
* just added when trying to analyze the abysmal performance of
* double formatting.
*/
@Test
@Ignore
public void testSpeed () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
int reps = 1000000;
long start = System.currentTimeMillis();
for (int i = 0; i < reps; i++) {
formatter.format(testRecord1);
}
long diff = System.currentTimeMillis() - start;
double dd = (reps / (double) diff);
System.out.println("Took " + diff + " milliseconds, per ms=" + dd);
}
/** test backslash, newline and tab escaping. one instance of each */
@Test
public void testEscaping () {
String a = "This line contains a \\ backslash and \n newline and \t tab.";
String b = "This line contains a \\\\ backslash and \\n newline and \\t tab.";
assertEquals(b, VespaFormat.escape(a));
assertEquals(a, VespaFormatter.unEscape(b));
}
/** test multiple instances of backslash */
@Test
public void testMultipleEscaping () {
String a = "This line contains a \\ backslash and \\ more backslash.";
String b = "This line contains a \\\\ backslash and \\\\ more backslash.";
assertEquals(b, VespaFormat.escape(a));
assertEquals(a, VespaFormatter.unEscape(b));
}
@Test
public void testThrowable () {
// VespaFormatter formatter = new VespaFormatter(serviceName, app);
LogRecord r = new LogRecord(Level.INFO, "foo bar");
r.setThrown(new IllegalStateException("this was fun"));
}
/**
* Got a NullPointerException earlier when trying to format
* a null message. Added unit test to make sure this does
* not happen again. Makes sure that NullPointerException
* is not thrown and that the formatted string contains the
* expected message for saying that there was no log message.
*/
@Test
public void testNullMessage () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
LogRecord r = new LogRecord(LogLevel.ERROR, null);
assertNotNull(r);
try {
String s = formatter.format(r);
assertNotNull(s);
assertTrue(s.indexOf("(empty)") > 0);
}
catch (NullPointerException e) {
fail("unable to handle null message!");
}
}
@Test
public void testLowLogLevelExceptionFormatting () {
VespaFormatter formatter = new VespaFormatter(serviceName, app);
LogRecord r = new LogRecord(LogLevel.INFO, "meldingen her");
r.setThrown(new IllegalStateException());
String result = formatter.format(r);
assertTrue(formatter.format(r).contains("meldingen her"));
}
}
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