001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.binding;
016    
017    import org.apache.hivemind.Location;
018    import org.apache.tapestry.BindingException;
019    import org.apache.tapestry.IAsset;
020    import org.apache.tapestry.IBinding;
021    import org.apache.tapestry.IComponent;
022    import org.apache.tapestry.coerce.ValueConverter;
023    import static org.easymock.EasyMock.expect;
024    import org.testng.annotations.Test;
025    
026    /**
027     * @author Howard M. Lewis Ship
028     * @since 4.0
029     */
030    @Test
031    public class TestAssetBinding extends BindingTestCase
032    {
033    
034        public void testGetObject()
035        {
036            IAsset asset = newMock(IAsset.class);
037            IComponent component = newMock(IComponent.class);
038    
039            expect(component.getAsset("fred")).andReturn(asset);
040    
041            Location l = fabricateLocation(22);
042    
043            ValueConverter vc = newValueConverter();
044    
045            replay();
046    
047            AssetBinding b = new AssetBinding("parameterName", vc, l, component, "fred");
048    
049            assertSame(asset, b.getObject());
050    
051            assertSame(l, b.getLocation());
052            assertEquals("fred", b.getDescription());
053    
054            assertSame(component, b.getComponent());
055    
056            verify();
057        }
058    
059        public void testAssetMissing()
060        {
061            IComponent component = newMock(IComponent.class);
062    
063            expect(component.getAsset("fred")).andReturn(null);
064    
065            expect(component.getExtendedId()).andReturn("Home/foo");
066    
067            Location l = fabricateLocation(22);
068    
069            ValueConverter vc = newValueConverter();
070    
071            replay();
072    
073            IBinding b = new AssetBinding("parameterName", vc, l, component, "fred");
074    
075            try
076            {
077                b.getObject();
078                unreachable();
079            }
080            catch (BindingException ex)
081            {
082                assertEquals("Component Home/foo does not contain an asset named 'fred'.", ex
083                        .getMessage());
084                assertSame(l, ex.getLocation());
085                assertSame(component, ex.getComponent());
086                assertSame(b, ex.getBinding());
087            }
088    
089        }
090    }