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/*******************************************************************************
* Copyright (c) 2005, 2007 committers of openArchitectureWare 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:
* committers of openArchitectureWare - initial API and implementation
*******************************************************************************/
package org.eclipse.xpand.internal.tests.output;
import java.io.File;
import java.io.FileOutputStream;
import org.eclipse.xpand2.output.FileHandle;
import org.eclipse.xpand2.output.FileHandleImpl;
import org.eclipse.xpand2.output.NoChangesVetoStrategy;
import org.eclipse.xpand2.output.Outlet;
import org.eclipse.xpand2.output.PostProcessor;
import junit.framework.TestCase;
public class NoChangesVetoStrategyTest extends TestCase {
public void testHasChanges() throws Exception {
File f = new File("./temp.txt");
if (f.exists()) {
f.delete();
}
FileOutputStream out = new FileOutputStream(f);
out.write("Foo bar".getBytes());
out.close();
Outlet outlet = new Outlet();
outlet.addPostprocessor(new
PostProcessor() {
public void afterClose(FileHandle impl) {
}
public void beforeWriteAndClose(FileHandle impl) {
impl.setBuffer(new StringBuffer("Foo ").append(impl.getBuffer()));
}});
FileHandleImpl fh = new FileHandleImpl(outlet,f);
NoChangesVetoStrategy p = new NoChangesVetoStrategy();
outlet.beforeWriteAndClose(fh);
assertFalse(p.hasVeto(fh));
fh.setBuffer("bar");
outlet.beforeWriteAndClose(fh);
assertTrue(p.hasVeto(fh));
fh.setBuffer("honolulu");
outlet.beforeWriteAndClose(fh);
assertFalse(p.hasVeto(fh));
}
}
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