EventImplTestCase.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010 Red Hat Inc. and/or its affiliates and other contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.arquillian.core.impl;

import org.jboss.arquillian.core.api.annotation.Observes;
import org.jboss.arquillian.core.spi.EventContext;
import org.jboss.arquillian.core.spi.ManagerBuilder;
import org.junit.Assert;
import org.junit.Test;

/**
 * EventImplTestCase
 *
 * @author <a href="mailto:aslak@redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class EventImplTestCase {
    @Test
    public void shouldBeAbleToFireEvent() throws Exception {
        ManagerImpl manager = (ManagerImpl) ManagerBuilder.from()
            .extensions(TestObserver.class).create();

        EventImpl<Object> event = EventImpl.of(Object.class, manager);

        Object testObject = new TestCommand();
        event.fire(testObject);

        TestObserver observer = manager.getExtension(TestObserver.class);
        Assert.assertTrue(observer.wasCalled);
        Assert.assertTrue(observer.observerWasCalled);
        Assert.assertEquals(
            "Verify same object was observed",
            testObject, observer.getObject());
    }

    private interface Command<T> {

    }

    private static class TestObserver {
        private boolean wasCalled = false;
        private boolean observerWasCalled = false;
        private Object object;

        @SuppressWarnings("unused")
        public void shouldBeCalled(@Observes Object object) {
            Assert.assertNotNull(object);
            this.object = object;
            wasCalled = true;
        }

        @SuppressWarnings("unused")
        public void shouldObserve(@Observes EventContext<Command> event) {
            observerWasCalled = true;
            event.proceed();
        }

        public Object getObject() {
            return object;
        }
    }

    private class TestCommand implements Command<String> {

    }
}