EventLoggerFactoryTest.java

package org.sef4j.core.api.logger;

import java.util.List;

import org.junit.Assert;
import org.junit.Test;
import org.sef4j.core.helpers.senders.InMemoryEventSender;


public class EventLoggerFactoryTest {

    private static class E {}
	private InMemoryEventSender<E> appender1 = new InMemoryEventSender<E>();
	private InMemoryEventSender<E> appender2 = new InMemoryEventSender<E>();
	private EventLoggerContext eventLoggerContext = new EventLoggerContext();
	private EventLoggerFactory sut = new EventLoggerFactory(eventLoggerContext);

	private EventLogger loggerA = sut.getEventLogger("a");
	private EventLogger loggerAB = sut.getEventLogger("a.b");


	@Test
	public void testSendEvent_addAppender() {
		// Prepare
		E event = new E();
		// Perform
		loggerA.sendEvent(event);
		// Post-check
		assertAppenderEvents(appender1);
		assertAppenderEvents(appender2);
		
		// Prepare
		// Perform
		eventLoggerContext.addAppender("appender1", appender1);
		eventLoggerContext.addAppender("appender2", appender2);
		// Post-check
		assertAppenderEvents(appender1);
		assertAppenderEvents(appender2);

		// Prepare
		eventLoggerContext.addLoggerToAppenderRef("a", "appender1", true);
		// Perform
		loggerA.sendEvent(event);
		// Post-check
		assertAppenderEvents(appender1, event);
		assertAppenderEvents(appender2);

		// Prepare
		// Perform
		loggerAB.sendEvent(event);
		// Post-check
		assertAppenderEvents(appender1, event);
		assertAppenderEvents(appender2);

		// Prepare
		eventLoggerContext.addLoggerToAppenderRef("a.b", "appender2", true);
		// Perform
		loggerAB.sendEvent(event);
		// Post-check
		assertAppenderEvents(appender1, event);
		assertAppenderEvents(appender2, event);

	}
	
	private static void assertAppenderEvents(InMemoryEventSender<E> appender, E... expectedEvents) {
		List<E> actualEvents = appender.clearAndGet();
		int len = Math.min(expectedEvents.length, actualEvents.size()); // see assert below
		for (int i = 0; i < len; i++) {
			Assert.assertSame(expectedEvents[i], actualEvents.get(i));
		}
		Assert.assertEquals(expectedEvents.length, actualEvents.size());
	}

}