GreeterTest.java

/*
 * Copyright 2013 Harald Wellmann.
 *
 * 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.ops4j.pax.cdi.test;

import static org.hamcrest.CoreMatchers.hasItem;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import static org.ops4j.pax.cdi.test.support.TestConfiguration.cdiProviderBundles;
import static org.ops4j.pax.cdi.test.support.TestConfiguration.paxCdiProviderAdapter;
import static org.ops4j.pax.cdi.test.support.TestConfiguration.regressionDefaults;
import static org.ops4j.pax.cdi.test.support.TestConfiguration.workspaceBundle;
import static org.ops4j.pax.exam.CoreOptions.options;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.inject.Inject;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.cdi.sample3.Greeter;
import org.ops4j.pax.exam.Configuration;
import org.ops4j.pax.exam.Option;
import org.ops4j.pax.exam.junit.PaxExam;
import org.ops4j.pax.exam.spi.reactors.ExamReactorStrategy;
import org.ops4j.pax.exam.spi.reactors.PerClass;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceReference;

@RunWith(PaxExam.class)
@ExamReactorStrategy(PerClass.class)
public class GreeterTest {

    @Inject
    private Greeter greeter;

    @Inject
    private BundleContext bc;

    @Configuration
    public Option[] config() {
        return options(
            regressionDefaults(),

            workspaceBundle("org.ops4j.pax.cdi.samples", "pax-cdi-sample3"),
            workspaceBundle("org.ops4j.pax.cdi.samples", "pax-cdi-sample3-client"),

            paxCdiProviderAdapter(),
            cdiProviderBundles());

    }

    /**
     * Checks that each Greeter is registered only once by its owning bundle.
     * Regression test for PAXCDI-56.
     *
     * @throws InvalidSyntaxException
     */
    @Test
    public void checkMultipleInstances() throws InvalidSyntaxException {
        Collection<ServiceReference<Greeter>> serviceReferences = bc.getServiceReferences(Greeter.class, null);
        assertThat(serviceReferences.size(), is(2));

        List<Greeter> greeters = new ArrayList<Greeter>();
        for (ServiceReference<Greeter> ref : serviceReferences) {
            greeters.add(bc.getService(ref));
        }
        assertThat(greeters, hasItem(greeter));
    }
}