blob: 98697897b7a04e718d0c5942a0029f30964380f1 (
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
|
/*******************************************************************************
* Copyright (c) 2005, 2007 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.utility.tests.internal.iterators;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.eclipse.jpt.utility.internal.iterators.EmptyEnumeration;
public class EmptyEnumerationTests extends TestCase {
public EmptyEnumerationTests(String name) {
super(name);
}
public void testHasMoreElements() {
int i = 0;
for (Enumeration<Object> stream = EmptyEnumeration.instance(); stream.hasMoreElements();) {
stream.nextElement();
i++;
}
assertEquals(0, i);
}
public void testNextElement() {
for (Enumeration<Object> stream = EmptyEnumeration.instance(); stream.hasMoreElements();) {
fail("bogus element: " + stream.nextElement());
}
}
public void testNoSuchElementException() {
boolean exCaught = false;
Enumeration<Object> stream = EmptyEnumeration.instance();
Object element = null;
while (stream.hasMoreElements()) {
element = stream.nextElement();
}
try {
element = stream.nextElement();
} catch (NoSuchElementException ex) {
exCaught = true;
}
assertTrue("NoSuchElementException not thrown: " + element, exCaught);
}
}
|
