// Copyright 2004, 2005 The Apache Software Foundation
//
// 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.apache.tapestry.enhance;
import org.apache.hivemind.ApplicationRuntimeException;
import org.apache.hivemind.Location;
import org.apache.hivemind.service.MethodSignature;
import org.apache.tapestry.BaseComponentTestCase;
import org.apache.tapestry.engine.HomeService;
import org.apache.tapestry.engine.IEngineService;
import org.apache.tapestry.services.InjectedValueProvider;
import org.apache.tapestry.spec.InjectSpecification;
import org.apache.tapestry.spec.InjectSpecificationImpl;
import static org.easymock.EasyMock.expect;
import org.testng.annotations.Test;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.Map;
/**
* Tests for {@link org.apache.tapestry.enhance.InjectObjectWorker}.
*
* @author Howard M. Lewis Ship
* @since 4.0
*/
@Test
public class TestInjectObjectWorker extends BaseComponentTestCase
{
private InjectSpecification newSpec(String name, String locator, Location location)
{
InjectSpecification is = new InjectSpecificationImpl();
is.setProperty(name);
is.setObject(locator);
is.setLocation(location);
return is;
}
public void testNoExistingProperty()
{
Location l = newLocation();
Object injectedValue = new Object();
InjectSpecification spec = newSpec("fred", "service:barney", l);
EnhancementOperation op = newMock(EnhancementOperation.class);
InjectedValueProvider p = newMock(InjectedValueProvider.class);
expect(op.getPropertyType("fred")).andReturn(null);
op.claimReadonlyProperty("fred");
expect(p.obtainValue("service:barney", l)).andReturn(injectedValue);
// When the same bean is injected multiple times, the field name
// returned won't match the field name suggested; make sure the code
// generation used the correct field name.
expect(op.addInjectedField("_$fred", Object.class, injectedValue)).andReturn("_$gnarly");
op.addMethod(
Modifier.PUBLIC,
new MethodSignature(Object.class, "getFred", null, null),
"return _$gnarly;",
l);
replay();
InjectObjectWorker w = new InjectObjectWorker();
w.setProvider(p);
w.performEnhancement(op, spec);
verify();
}
public void testWithExistingProperty()
{
Location l = newLocation();
Object injectedValue = new HomeService();
InjectSpecification spec = newSpec("wilma", "service:betty", l);
EnhancementOperation op = newMock(EnhancementOperation.class);
InjectedValueProvider p = newMock(InjectedValueProvider.class);
expect(op.getPropertyType("wilma")).andReturn(IEngineService.class);
op.claimReadonlyProperty("wilma");
expect(p.obtainValue("service:betty", l)).andReturn(injectedValue);
expect(op.addInjectedField("_$wilma", IEngineService.class, injectedValue)).andReturn("_$wilma");
op.addMethod(Modifier.PUBLIC, new MethodSignature(IEngineService.class, "getWilma", null,
null), "return _$wilma;", l);
replay();
InjectObjectWorker w = new InjectObjectWorker();
w.setProvider(p);
w.performEnhancement(op, spec);
verify();
}
/**
* Test what happens when the value to be injected is null (usually indicating an error in the
* locator and/or a configuration error inside the HiveMind descriptors).
*/
public void testInjectNull()
{
Location l = newLocation();
InjectSpecification spec = newSpec("fred", "service:barney", l);
EnhancementOperation op = newMock(EnhancementOperation.class);
InjectedValueProvider p = newMock(InjectedValueProvider.class);
expect(op.getPropertyType("fred")).andReturn(null);
op.claimReadonlyProperty("fred");
expect(p.obtainValue("service:barney", l)).andReturn(null);
replay();
InjectObjectWorker w = new InjectObjectWorker();
w.setProvider(p);
try
{
w.performEnhancement(op, spec);
unreachable();
}
catch (ApplicationRuntimeException ex)
{
assertEquals("Value obtained using locator 'service:barney' is null.", ex.getMessage());
assertSame(l, ex.getLocation());
}
verify();
}
public void testInjectedValueWrongType()
{
Location l = newLocation();
InjectSpecification spec = newSpec("fred", "service:barney", l);
EnhancementOperation op = newMock(EnhancementOperation.class);
InjectedValueProvider p = newMock(InjectedValueProvider.class);
expect(op.getPropertyType("fred")).andReturn(IEngineService.class);
op.claimReadonlyProperty("fred");
expect(p.obtainValue("service:barney", l)).andReturn("INJECTED-VALUE");
replay();
InjectObjectWorker w = new InjectObjectWorker();
w.setProvider(p);
try
{
w.performEnhancement(op, spec);
unreachable();
}
catch (ApplicationRuntimeException ex)
{
assertEquals(
"The value obtained using locator 'service:barney' (INJECTED-VALUE) is not compatible with the existing property (of type org.apache.tapestry.engine.IEngineService).",
ex.getMessage());
assertSame(l, ex.getLocation());
}
verify();
}
public void testInjectMap()
{
Location l = newLocation();
Map injectedValue = new HashMap();
InjectSpecification spec = newSpec("fred", "service:barney", l);
EnhancementOperation op = newMock(EnhancementOperation.class);
InjectedValueProvider p = newMock(InjectedValueProvider.class);
expect(op.getPropertyType("fred")).andReturn(Map.class);
op.claimReadonlyProperty("fred");
expect(p.obtainValue("service:barney", l)).andReturn(new HashMap());
expect(op.addInjectedField("_$fred", Map.class, injectedValue)).andReturn("_$fred");
op.addMethod(Modifier.PUBLIC, new MethodSignature(Map.class, "getFred", null,
null), "return _$fred;", l);
replay();
InjectObjectWorker w = new InjectObjectWorker();
w.setProvider(p);
w.performEnhancement(op, spec);
verify();
}
}