Hi,
I am preparing a pull request for LOG4J2-2403 and modified an existing
Unit-Test that has its configuration in YAML format. I added a second
ListAppender, but this causes the Unit test to behave strangely.
It seems that, since I have two ListAppenders now, the sequence numbers are
shared between the Appenders. So one of them gets the sequence number 1, 3,
5, 7, 9 and the other gets 2, 4, 6, 8, 10. Is there a way to avoid this?
The seconds problem is that the sequence number is not reset between the
tests. I do not know how to do this with the LoggerContextRule.
The Unit-Test I have modified is SequenceNumberPatternConverterTest.
Please find attached the modified Test class and its corresponding YAML-File.
Any suggestions on how to solve these problems? I could create a seconds
Unit test class, but I would rather use the same because they actually test
exactly the same functionality, only with different patterns.
Best regards
Marco
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package org.apache.logging.log4j.core.pattern;
import java.util.List;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.junit.LoggerContextRule;
import org.apache.logging.log4j.test.appender.ListAppender;
import org.junit.Test;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.ClassRule;
/**
*
*/
public class SequenceNumberPatternConverterTest {
@ClassRule
public static LoggerContextRule ctx = new LoggerContextRule("SequenceNumberPatternConverterTest.yml");
@Before
public void before() {
ctx.getListAppender("List").clear();
ctx.getListAppender("Padded").clear();
}
@Test
public void testSequenceIncreases() throws Exception {
final Logger logger = ctx.getLogger();
logger.info("Message 1");
logger.info("Message 2");
logger.info("Message 3");
logger.info("Message 4");
logger.info("Message 5");
final ListAppender app = ctx.getListAppender("List");
final List<String> messages = app.getMessages();
System.out.println("Written messages: "+messages);
assertThat(messages, contains("1", "2", "3", "4", "5"));
}
@Test
public void testPaddedSequence() throws Exception {
final Logger logger = ctx.getLogger();
logger.info("Message 1");
logger.info("Message 2");
logger.info("Message 3");
logger.info("Message 4");
logger.info("Message 5");
final ListAppender app = ctx.getListAppender("Padded");
final List<String> messages = app.getMessages();
System.out.println("Written messages "+messages);
assertThat(messages, contains("001", "002", "003", "004", "005"));
}
}
Configuration:
status: OFF
name: SequenceNumberPatternConverterTest
Appenders:
List:
- name: List
PatternLayout:
pattern: '%sn'
- name: Padded
PatternLayout:
pattern: '%03sn'
Loggers:
Root:
level: INFO
AppenderRef:
- ref: List
- ref: Padded
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