ContextClassLoaderServiceDiscovererTestCase.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.tuscany.sca.extensibility;

import java.io.IOException;
import java.util.Collection;

import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

/**
 * Test Case for ClasspathServiceDiscover
 */
public class ContextClassLoaderServiceDiscovererTestCase {
    private static ContextClassLoaderServiceDiscoverer discover;

    /**
     * @throws java.lang.Exception
     */
    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        discover = new ContextClassLoaderServiceDiscoverer();
    }

    @Test
    public void testDiscovery() {
        Collection<ServiceDeclaration> discriptors =
            discover.getServiceDeclarations("org.apache.tuscany.sca.core.ModuleActivatorExtensionPoint");
        Assert.assertEquals(1, discriptors.size());
        discriptors =
            discover.getServiceDeclarations("notthere");
        Assert.assertEquals(0, discriptors.size());
    }

    @Test
    public void testDiscoverResources() throws IOException {
        Collection<ServiceDeclaration> descriptors = discover.getServiceDeclarations("/META-INF/services/org.apache.tuscany.sca.extensibility.test.TestInterface");
        Assert.assertEquals(3, descriptors.size());
    }
    
    @Test
    public void testDiscoveryFirst() throws IOException {
        ServiceDeclaration descriptor =
            discover.getServiceDeclaration("org.apache.tuscany.sca.core.ModuleActivatorExtensionPoint");
        Assert.assertNotNull(descriptor);
        descriptor = discover.getServiceDeclaration("notthere");
        Assert.assertNull(descriptor);
    }

    @Test
    public void testXPathFactory() {
        Collection<ServiceDeclaration> discriptors = discover.getServiceDeclarations("javax.xml.xpath.XPathFactory");
        if (!discriptors.isEmpty()) {
            ServiceDeclaration d = discriptors.iterator().next();
            Assert.assertNotNull(d.getClassName());
            Assert.assertTrue(d.getAttributes().containsKey("class"));
        }
    }


    /**
     * @throws java.lang.Exception
     */
    @AfterClass
    public static void tearDownAfterClass() throws Exception {
    }

}