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/*******************************************************************************
* Copyright (c) 2009 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.tests.internal.iterables;
import java.util.ArrayList;
import java.util.List;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.Transformer;
import org.eclipse.jpt.common.utility.internal.iterables.TransformationListIterable;
@SuppressWarnings("nls")
public class TransformationListIterableTests extends TestCase {
public TransformationListIterableTests(String name) {
super(name);
}
public void testTransform1() {
int i = 1;
for (Integer integer : this.buildIterable1()) {
assertEquals(i++, integer.intValue());
}
}
private Iterable<Integer> buildIterable1() {
return this.buildTransformationListIterable1(this.buildNestedList());
}
private Iterable<Integer> buildTransformationListIterable1(List<String> nestedList) {
// transform each string into an integer with a value of the string's length
return new TransformationListIterable<String, Integer>(nestedList) {
@Override
protected Integer transform(String next) {
return new Integer(next.length());
}
};
}
public void testTransform2() {
int i = 1;
for (Integer integer : this.buildIterable2()) {
assertEquals(i++, integer.intValue());
}
}
private Iterable<Integer> buildIterable2() {
return this.buildTransformationListIterable2(this.buildNestedList());
}
private Iterable<Integer> buildTransformationListIterable2(List<String> nestedList) {
// transform each string into an integer with a value of the string's length
return new TransformationListIterable<String, Integer>(nestedList, this.buildTransformer());
}
private Transformer<String, Integer> buildTransformer() {
// transform each string into an integer with a value of the string's length
return new Transformer<String, Integer>() {
public Integer transform(String next) {
return new Integer(next.length());
}
};
}
private List<String> buildNestedList() {
List<String> c = new ArrayList<String>();
c.add("1");
c.add("22");
c.add("333");
c.add("4444");
c.add("55555");
c.add("666666");
c.add("7777777");
c.add("88888888");
return c;
}
public void testToString() {
assertNotNull(this.buildIterable1().toString());
}
public void testMissingTransformer() {
Iterable<Integer> iterable = new TransformationListIterable<String, Integer>(this.buildNestedList());
boolean exCaught = false;
try {
int i = 1;
for (Integer integer : iterable) {
assertEquals(i++, integer.intValue());
}
} catch (RuntimeException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
}
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