/*
* Copyright 2007-2010 the original author or authors.
*
* 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.impalaframework.module.modification;
import java.util.Collection;
import java.util.Iterator;
import junit.framework.TestCase;
import org.impalaframework.module.ModuleDefinition;
import org.impalaframework.module.ModuleState;
import org.impalaframework.module.RootModuleDefinition;
import org.impalaframework.module.definition.SimpleModuleDefinition;
import org.impalaframework.module.spi.Application;
import org.impalaframework.module.spi.ApplicationManager;
import org.impalaframework.module.spi.ModuleStateChange;
import org.impalaframework.module.spi.TestApplicationManager;
import org.impalaframework.module.spi.Transition;
import org.impalaframework.module.spi.TransitionSet;
public class ModificationExtractorTest extends TestCase {
private StrictModificationExtractor calculator;
private Application application;
public void setUp() {
calculator = new StrictModificationExtractor();
ApplicationManager applicationManager = TestApplicationManager.newApplicationManager();
application = applicationManager.getCurrentApplication();
}
public void testNull() {
try {
calculator.getTransitions(application, null, null);
fail();
}
catch (IllegalArgumentException e) {
assertEquals("Either originalDefinition or newDefinition must be non-null", e.getMessage());
}
}
public void testGetSimpleTransitions() {
RootModuleDefinition rootModuleDefinition = ModificationTestUtils.spec("app-context.xml", "plugin1, plugin2");
TransitionSet transitionsFromOriginal = calculator.getTransitions(application, rootModuleDefinition, null);
assertEquals(null, transitionsFromOriginal.getNewRootModuleDefinition());
TransitionSet transitionsToNew = calculator.getTransitions(application, null, rootModuleDefinition);
assertEquals(rootModuleDefinition, transitionsToNew.getNewRootModuleDefinition());
}
public void testModifiedParent() {
RootModuleDefinition parentSpec1 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
RootModuleDefinition parentSpec2 = ModificationTestUtils.spec("app-context2.xml", "plugin1, plugin2");
TransitionSet transitions = calculator.getTransitions(application, parentSpec1, parentSpec2);
assertEquals(parentSpec2, transitions.getNewRootModuleDefinition());
Collection<? extends ModuleStateChange> moduleTransitions = transitions.getModuleTransitions();
assertEquals(6, moduleTransitions.size());
Iterator<? extends ModuleStateChange> iterator = moduleTransitions.iterator();
ModuleStateChange change1 = iterator.next();
ModuleStateChange change2 = iterator.next();
ModuleStateChange change3 = iterator.next();
ModuleStateChange change4 = iterator.next();
ModuleStateChange change5 = iterator.next();
ModuleStateChange change6 = iterator.next();
assertEquals("plugin1", change1.getModuleDefinition().getName());
assertEquals(Transition.LOADED_TO_UNLOADED, change1.getTransition());
assertEquals("plugin2", change2.getModuleDefinition().getName());
assertEquals("project1", change3.getModuleDefinition().getName());
assertEquals(Transition.LOADED_TO_UNLOADED, change3.getTransition());
assertEquals(Transition.UNLOADED_TO_LOADED, change4.getTransition());
assertEquals("project1", change4.getModuleDefinition().getName());
assertEquals("plugin1", change5.getModuleDefinition().getName());
assertEquals("plugin2", change6.getModuleDefinition().getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change6.getTransition());
}
public void testReloadSame() {
RootModuleDefinition parentSpec1 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
RootModuleDefinition parentSpec2 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
parentSpec2.findChildDefinition("plugin1", true).setState(ModuleState.STALE);
TransitionSet transitions = calculator.getTransitions(application, parentSpec1, parentSpec2);
assertEquals(parentSpec2, transitions.getNewRootModuleDefinition());
Collection<? extends ModuleStateChange> moduleTransitions = transitions.getModuleTransitions();
assertEquals(2, moduleTransitions.size());
Iterator<? extends ModuleStateChange> iterator = moduleTransitions.iterator();
ModuleStateChange change1 = iterator.next();
ModuleStateChange change2 = iterator.next();
assertEquals("plugin1", change1.getModuleDefinition().getName());
assertEquals(Transition.LOADED_TO_UNLOADED, change1.getTransition());
assertEquals("plugin1", change2.getModuleDefinition().getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change2.getTransition());
}
public void testReloadChanged() {
RootModuleDefinition parentSpec1 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2, plugin3");
RootModuleDefinition parentSpec2 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
parentSpec2.findChildDefinition("plugin1", true).setState(ModuleState.STALE);
TransitionSet transitions = calculator.getTransitions(application, parentSpec1, parentSpec2);
assertEquals(parentSpec2, transitions.getNewRootModuleDefinition());
Collection<? extends ModuleStateChange> moduleTransitions = transitions.getModuleTransitions();
assertEquals(3, moduleTransitions.size());
Iterator<? extends ModuleStateChange> iterator = moduleTransitions.iterator();
ModuleStateChange change1 = iterator.next();
ModuleStateChange change2 = iterator.next();
ModuleStateChange change3 = iterator.next();
ModuleDefinition moduleDefinition1Unloaded = change1.getModuleDefinition();
assertEquals("plugin1", moduleDefinition1Unloaded.getName());
assertEquals(Transition.LOADED_TO_UNLOADED, change1.getTransition());
ModuleDefinition moduleDefinition1loaded = change2.getModuleDefinition();
assertEquals("plugin1", moduleDefinition1loaded.getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change2.getTransition());
ModuleDefinition moduleDefinition3Unloaded = change3.getModuleDefinition();
assertEquals("plugin3", moduleDefinition3Unloaded.getName());
}
public void testAddedChild() {
RootModuleDefinition parentSpec1 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
RootModuleDefinition parentSpec2 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin3, plugin2, plugin4");
TransitionSet transitions = calculator.getTransitions(application, parentSpec1, parentSpec2);
assertEquals(parentSpec2, transitions.getNewRootModuleDefinition());
Collection<? extends ModuleStateChange> pluginTransitions = transitions.getModuleTransitions();
assertEquals(2, pluginTransitions.size());
Iterator<? extends ModuleStateChange> iterator = pluginTransitions.iterator();
ModuleStateChange change1 = iterator.next();
assertEquals("plugin3", change1.getModuleDefinition().getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change1.getTransition());
ModuleStateChange change2 = iterator.next();
assertEquals("plugin4", change2.getModuleDefinition().getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change2.getTransition());
}
public void testChangeChild() {
RootModuleDefinition parentSpec1 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2, plugin3");
RootModuleDefinition parentSpec2 = ModificationTestUtils.spec("app-context1.xml", "plugin1, plugin2");
ModuleDefinition plugin2 = parentSpec2.findChildDefinition("plugin2", true);
new SimpleModuleDefinition(plugin2, "plugin4");
TransitionSet transitions = calculator.getTransitions(application, parentSpec1, parentSpec2);
assertEquals(parentSpec2, transitions.getNewRootModuleDefinition());
Collection<? extends ModuleStateChange> pluginTransitions = transitions.getModuleTransitions();
assertEquals(2, pluginTransitions.size());
Iterator<? extends ModuleStateChange> iterator = pluginTransitions.iterator();
ModuleStateChange change1 = iterator.next();
assertEquals("plugin4", change1.getModuleDefinition().getName());
assertEquals(Transition.UNLOADED_TO_LOADED, change1.getTransition());
ModuleStateChange change2 = iterator.next();
assertEquals("plugin3", change2.getModuleDefinition().getName());
assertEquals(Transition.LOADED_TO_UNLOADED, change2.getTransition());
}
}