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CallerInfoTest.java
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CallerInfoTest.java
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package org.slf4j.issue;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.List;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.event.EventConstants;
import org.slf4j.event.SubstituteLoggingEvent;
import org.slf4j.helpers.SubstituteLogger;
import org.slf4j.helpers.SubstituteServiceProvider;
import org.slf4j.jul.ListHandler;
public class CallerInfoTest {
Level oldLevel;
java.util.logging.Logger root = java.util.logging.Logger.getLogger("");
ListHandler listHandler = new ListHandler();
@Before
public void setUp() throws Exception {
oldLevel = root.getLevel();
root.setLevel(Level.FINE);
// removeAllHandlers(root);
root.addHandler(listHandler);
}
@After
public void tearDown() throws Exception {
root.setLevel(oldLevel);
removeListHandlers(root);
}
void removeListHandlers(java.util.logging.Logger logger) {
Handler[] handlers = logger.getHandlers();
for (Handler h : handlers) {
if (h instanceof ListHandler)
logger.removeHandler(h);
}
}
@Test
public void testCallerInfo() {
Logger logger = LoggerFactory.getLogger("bla");
logger.debug("hello");
List<LogRecord> recordList = listHandler.recordList;
assertEquals(1, recordList.size());
LogRecord logRecod = recordList.get(0);
assertEquals(this.getClass().getName(), logRecod.getSourceClassName());
}
// Do we preserve location info using fluent API?
// See https://jira.qos.ch/browse/SLF4J-511
@Test
public void testCallerInfoWithFluentAPI() {
Logger logger = LoggerFactory.getLogger("bla");
logger.atDebug().log("hello");
List<LogRecord> recordList = listHandler.recordList;
assertEquals(1, recordList.size());
LogRecord logRecod = recordList.get(0);
assertEquals(this.getClass().getName(), logRecod.getSourceClassName());
}
@Test
public void testPostInitializationCallerInfoWithSubstituteLogger() {
Logger logger = LoggerFactory.getLogger("bla");
SubstituteLogger substituteLogger = new SubstituteLogger("bla", null, false);
substituteLogger.setDelegate(logger);
substituteLogger.debug("hello");
List<LogRecord> recordList = listHandler.recordList;
assertEquals(1, recordList.size());
LogRecord logRecod = recordList.get(0);
assertEquals(CallerInfoTest.class.getName(), logRecod.getSourceClassName());
}
// In this case we KNOW that we CANNOT KNOW the caller
@Test
public void testIntraInitializationCallerInfoWithSubstituteLogger() throws InterruptedException {
SubstituteServiceProvider substituteServiceProvider = new SubstituteServiceProvider();
String loggerName = "bkla";
substituteServiceProvider.getLoggerFactory().getLogger(loggerName);
SubstituteLogger substituteLogger = substituteServiceProvider.getSubstituteLoggerFactory().getLoggers().get(0);
assertEquals(loggerName, substituteLogger.getName());
substituteLogger.debug("jello");
Logger logger = LoggerFactory.getLogger(loggerName);
substituteLogger.setDelegate(logger);
final LinkedBlockingQueue<SubstituteLoggingEvent> queue = substituteServiceProvider.getSubstituteLoggerFactory().getEventQueue();
SubstituteLoggingEvent substituteLoggingEvent = queue.take();
assertTrue(substituteLogger.isDelegateEventAware());
substituteLogger.log(substituteLoggingEvent);
List<LogRecord> recordList = listHandler.recordList;
assertEquals(1, recordList.size());
LogRecord logRecod = recordList.get(0);
assertEquals(EventConstants.NA_SUBST, logRecod.getSourceClassName());
}
}