| /******************************************************************************* |
| * Copyright (c) 2007-2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Matthew Hall - bug 221351 |
| ******************************************************************************/ |
| |
| package org.eclipse.jface.databinding.conformance; |
| |
| import junit.framework.TestCase; |
| |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.ObservableTracker; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.jface.databinding.conformance.delegate.IObservableContractDelegate; |
| import org.eclipse.jface.databinding.conformance.util.CurrentRealm; |
| import org.eclipse.jface.databinding.conformance.util.RealmTester; |
| |
| /** |
| * TestCase that provides the standard behavior expected for delegating test cases. |
| * |
| * @since 3.2 |
| */ |
| public class ObservableDelegateTest extends TestCase { |
| private IObservableContractDelegate delegate; |
| |
| private Realm previousRealm; |
| |
| private IObservable observable; |
| private String debugInfo; |
| |
| public ObservableDelegateTest(IObservableContractDelegate delegate) { |
| this(null, delegate); |
| } |
| |
| public ObservableDelegateTest(String testName, IObservableContractDelegate delegate) { |
| super(testName); |
| this.delegate = delegate; |
| } |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| previousRealm = Realm.getDefault(); |
| |
| delegate.setUp(); |
| observable = doCreateObservable(); |
| } |
| |
| protected void tearDown() throws Exception { |
| super.tearDown(); |
| |
| delegate.tearDown(); |
| observable.dispose(); |
| observable = null; |
| |
| RealmTester.setDefault(previousRealm); |
| |
| observable = null; |
| previousRealm = null; |
| } |
| |
| /** |
| * Creates a new observable with a default realm. Invoked from |
| * {@link #setUp()}. Override to customize the creation of observables |
| * (e.g. specifying a different Realm). |
| * |
| * @return observable |
| */ |
| protected IObservable doCreateObservable() { |
| return delegate.createObservable(new CurrentRealm(true)); |
| } |
| |
| /** |
| * Returns the created observable. The observable is created in |
| * {@link #setUp()}. If invoked before {@link #setUp()} will be |
| * <code>null</code>. |
| * |
| * @return observable |
| */ |
| protected IObservable getObservable() { |
| return observable; |
| } |
| |
| /** |
| * Returns the delegate in use. |
| * |
| * @return delegate |
| */ |
| protected IObservableContractDelegate getObservableContractDelegate() { |
| return delegate; |
| } |
| |
| protected String formatFail(String message) { |
| return message + getDebugString(); |
| } |
| |
| private String getDebugString() { |
| if (debugInfo == null) { |
| debugInfo = "(Test: " + this.getClass().getName() + ", Delegate: " + delegate.getClass().getName() + ")"; |
| } |
| |
| return debugInfo; |
| } |
| |
| /** |
| * Asserts that ObservableTracker.getterCalled(...) is invoked when the |
| * provided <code>runnable</code> is invoked. |
| * |
| * @param runnable |
| * @param methodName |
| * method name to display when displaying a message |
| * @param observable |
| * observable that should be collected by ObservableTracker |
| */ |
| protected void assertGetterCalled(Runnable runnable, String methodName, IObservable observable) { |
| IObservable[] observables = ObservableTracker.runAndMonitor(runnable, |
| null, null); |
| |
| int count = 0; |
| for (int i = 0; i < observables.length; i++) { |
| if (observables[i] == observable) { |
| count++; |
| } |
| } |
| |
| assertEquals(formatFail(methodName |
| + " should invoke ObservableTracker.getterCalled() once."), 1, |
| count); |
| } |
| } |