blob: ae8423bfd58a3e7d2617e54001d53241334d2803 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*******************************************************************************
* 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.AbstractCollection;
import java.util.AbstractList;
import java.util.Iterator;
import java.util.Vector;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.iterables.ChainIterable;
import org.eclipse.jpt.common.utility.internal.iterators.ChainIterator;
@SuppressWarnings("nls")
public class ChainIterableTests extends TestCase {
private final static Class<?>[] VECTOR_HIERARCHY = { Vector.class, AbstractList.class, AbstractCollection.class, Object.class };
public ChainIterableTests(String name) {
super(name);
}
public void testNextLink() {
int i = 0;
for (Class<?> clazz : this.buildIterable()) {
assertEquals(VECTOR_HIERARCHY[i++], clazz);
}
}
public void testLinker() {
int i = 0;
for (Class<?> clazz : new ChainIterable<Class<?>>(Vector.class, this.buildLinker())) {
assertEquals(VECTOR_HIERARCHY[i++], clazz);
}
}
public void testException() {
Iterable<Class<?>> iterable = new ChainIterable<Class<?>>(Vector.class);
Iterator<Class<?>> iterator = iterable.iterator();
boolean exCaught = false;
try {
Class<?> clazz = iterator.next();
fail("bogus class: " + clazz);
} catch (RuntimeException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testToString() {
assertNotNull(this.buildIterable().toString());
}
private Iterable<Class<?>> buildIterable() {
return this.buildChainIterable(Vector.class);
}
private Iterable<Class<?>> buildChainIterable(Class<?> startLink) {
// chain up the class's hierarchy
return new ChainIterable<Class<?>>(startLink) {
@Override
protected Class<?> nextLink(Class<?> currentLink) {
return currentLink.getSuperclass();
}
};
}
private ChainIterator.Linker<Class<?>> buildLinker() {
return new ChainIterator.Linker<Class<?>>() {
public Class<?> nextLink(Class<?> currentLink) {
return currentLink.getSuperclass();
}
};
}
}
|
