Package org.apache.tuscany.core.loader

Source Code of org.apache.tuscany.core.loader.ComponentLoaderTestCase

/*
* 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.core.loader;

import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import static org.osoa.sca.Version.XML_NAMESPACE_1_0;

import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import junit.framework.TestCase;

import org.apache.tuscany.core.implementation.java.JavaImplementation;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.implementation.java.PojoComponentType;
import org.apache.tuscany.spi.loader.LoaderException;
import org.apache.tuscany.spi.loader.LoaderRegistry;
import org.apache.tuscany.spi.loader.PropertyObjectFactory;
import org.apache.tuscany.spi.model.ComponentDefinition;
import org.apache.tuscany.spi.model.Implementation;
import org.apache.tuscany.spi.model.Property;
import org.apache.tuscany.spi.model.ReferenceDefinition;
import org.apache.tuscany.spi.model.ServiceDefinition;
import org.easymock.EasyMock;

/**
* @version $Rev: 452952 $ $Date: 2006-10-04 10:45:02 -0700 (Wed, 04 Oct 2006) $
*/
public class ComponentLoaderTestCase extends TestCase {
    private static final QName COMPONENT = new QName(XML_NAMESPACE_1_0, "component");
    private static final String NAME = "testComponent";
    private static final Implementation IMPL = new JavaImplementation();

    private XMLStreamReader mockReader;
    private LoaderRegistry mockRegistry;
    private PropertyObjectFactory mockPropertyFactory;
    private ComponentLoader loader;

    public void testEmptyComponent() throws LoaderException, XMLStreamException {
        EasyMock.expect(mockReader.getName()).andReturn(COMPONENT).atLeastOnce();
        EasyMock.expect(mockReader.getAttributeValue((String) EasyMock.isNull(), EasyMock.isA(String.class)))
            .andReturn(NAME);
        EasyMock.expect(mockReader.getAttributeValue((String) EasyMock.isNull(), EasyMock.eq("initLevel")))
            .andReturn(null);
        EasyMock.expect(mockReader.getAttributeValue(EasyMock.isA(String.class), EasyMock.isA(String.class)))
            .andReturn(null);
        EasyMock.expect(mockReader.nextTag()).andReturn(0);
        EasyMock.expect(mockReader.next()).andReturn(XMLStreamConstants.END_ELEMENT);
        EasyMock.replay(mockReader);
        mockRegistry.loadComponentType(EasyMock.isA(CompositeComponent.class),
            EasyMock.isA(Implementation.class),
            EasyMock.isA(DeploymentContext.class));

        EasyMock.expect(mockRegistry.load(EasyMock.isA(CompositeComponent.class),
            EasyMock.eq(mockReader),
            EasyMock.isA(DeploymentContext.class))).andReturn(IMPL);
        EasyMock.replay(mockRegistry);
        ComponentDefinition component = loader.load(EasyMock.createNiceMock(CompositeComponent.class),
            mockReader,
            EasyMock.createNiceMock(DeploymentContext.class));
        assertEquals(NAME, component.getName());
        assertNull(component.getInitLevel());
    }

    public void testInitValue20() throws LoaderException, XMLStreamException {
        EasyMock.expect(mockReader.getName()).andReturn(COMPONENT).atLeastOnce();
        EasyMock.expect(mockReader.getAttributeValue((String) EasyMock.isNull(), EasyMock.isA(String.class)))
            .andReturn(NAME);
        EasyMock.expect(mockReader.getAttributeValue((String) EasyMock.isNull(), EasyMock.eq("initLevel")))
            .andReturn("20");
        EasyMock.expect(mockReader.nextTag()).andReturn(0);
        EasyMock.expect(mockReader.next()).andReturn(XMLStreamConstants.END_ELEMENT);
        EasyMock.replay(mockReader);

        mockRegistry.loadComponentType(EasyMock.isA(CompositeComponent.class),
            EasyMock.isA(Implementation.class),
            EasyMock.isA(DeploymentContext.class));
        EasyMock.expect(mockRegistry.load(EasyMock.isA(CompositeComponent.class),
            EasyMock.eq(mockReader),
            EasyMock.isA(DeploymentContext.class))).andReturn(IMPL);
        EasyMock.replay(mockRegistry);
        ComponentDefinition component = loader.load(EasyMock.createNiceMock(CompositeComponent.class),
            mockReader,
            EasyMock.createNiceMock(DeploymentContext.class));
        assertEquals(NAME, component.getName());
        assertEquals(Integer.valueOf(20), component.getInitLevel());
    }

    public void testLoadPropertyWithSource() throws LoaderException, XMLStreamException {
        PojoComponentType<?, ?, Property<?>> type =
            new PojoComponentType<ServiceDefinition, ReferenceDefinition, Property<?>>();
        Property property = new Property();
        property.setName("name");
        type.add(property);
        JavaImplementation impl = new JavaImplementation();
        impl.setComponentType(type);
        ComponentDefinition<?> defn = new ComponentDefinition<JavaImplementation>(impl);
        XMLStreamReader reader = createMock(XMLStreamReader.class);
        expect(reader.getAttributeValue(null, "name")).andReturn("name");
        expect(reader.getAttributeValue(null, "source")).andReturn("$source");
        expect(reader.getAttributeValue(null, "file")).andReturn(null);
        expect(reader.next()).andReturn(XMLStreamConstants.END_ELEMENT);
        replay(reader);
        loader.loadProperty(reader, null, defn);
        assertEquals("$source", defn.getPropertyValues().get("name").getSource());
        EasyMock.verify(reader);
    }

    protected void setUp() throws Exception {
        super.setUp();
        mockReader = EasyMock.createMock(XMLStreamReader.class);
        mockRegistry = EasyMock.createMock(LoaderRegistry.class);
        mockPropertyFactory = EasyMock.createMock(PropertyObjectFactory.class);
        loader = new ComponentLoader(mockRegistry, mockPropertyFactory);
    }
}
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