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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.core;
import com.yahoo.jdisc.application.OsgiFramework;
import com.yahoo.jdisc.test.TestDriver;
import org.junit.jupiter.api.Test;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.service.log.LogReaderService;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
/**
* @author Simon Thoresen Hult
*/
public class OsgiLogServiceTestCase {
@Test
void requireThatLogServiceIsRegistered() throws BundleException, InterruptedException {
OsgiFramework osgi = TestDriver.newOsgiFramework();
osgi.start();
ServiceTracker<?, ?> logs = newTracker(osgi, LogService.class);
ServiceTracker<?, ?> logReaders = newTracker(osgi, LogReaderService.class);
assertEquals(1, logs.getTrackingCount());
assertEquals(1, logReaders.getTrackingCount());
OsgiLogService service = new OsgiLogService();
service.start(osgi.bundleContext());
assertEquals(2, logs.getTrackingCount());
assertEquals(2, logReaders.getTrackingCount());
osgi.stop();
}
@Test
void requireThatLogServiceCanNotBeStartedTwice() throws BundleException {
OsgiFramework osgi = TestDriver.newOsgiFramework();
osgi.start();
BundleContext ctx = osgi.bundleContext();
OsgiLogService service = new OsgiLogService();
service.start(ctx);
try {
service.start(ctx);
fail();
} catch (IllegalStateException e) {
}
osgi.stop();
}
@Test
void requireThatLogServiceCanNotBeStoppedTwice() throws BundleException {
OsgiFramework osgi = TestDriver.newOsgiFramework();
osgi.start();
BundleContext ctx = osgi.bundleContext();
OsgiLogService service = new OsgiLogService();
service.start(ctx);
service.stop();
try {
service.stop();
fail();
} catch (NullPointerException e) {
}
osgi.stop();
}
@Test
void requireThatUnstartedLogServiceCanNotBeStopped() throws BundleException {
try {
new OsgiLogService().stop();
fail();
} catch (NullPointerException e) {
}
}
@Test
void requireThatLogServiceCanNotStartWithoutBundleContext() throws BundleException {
try {
new OsgiLogService().start(null);
fail();
} catch (NullPointerException e) {
}
}
@SuppressWarnings("unchecked")
private static ServiceTracker<?,?> newTracker(OsgiFramework osgi, Class<?> trackedClass) {
ServiceTracker<?,?> tracker = new ServiceTracker<>(osgi.bundleContext(), trackedClass, null);
tracker.open();
return tracker;
}
}
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