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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*******************************************************************************
* 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.Collection;
import java.util.Iterator;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.iterables.TreeIterable;
import org.eclipse.jpt.common.utility.internal.iterators.TreeIterator;
import org.eclipse.jpt.common.utility.tests.internal.TestTools;
@SuppressWarnings("nls")
public class TreeIterableTests extends TestCase {
/** this will be populated with all the nodes created for the test */
Collection<TreeNode> nodes = new ArrayList<TreeNode>();
public TreeIterableTests(String name) {
super(name);
}
@Override
protected void tearDown() throws Exception {
TestTools.clear(this);
super.tearDown();
}
public void testIterator1() {
for (TreeNode tn : this.buildTreeIterable1()) {
assertTrue(this.nodes.contains(tn));
}
}
public void testIterator2() {
for (TreeNode tn : this.buildTreeIterable2()) {
assertTrue(this.nodes.contains(tn));
}
}
public void testMidwife1() {
for (TreeNode tn : new TreeIterable<TreeNode>(this.buildTree(), this.buildMidwife())) {
assertTrue(this.nodes.contains(tn));
}
}
public void testMidwife2() {
for (TreeNode tn : new TreeIterable<TreeNode>(new TreeNode[] { this.buildTree() }, this.buildMidwife())) {
assertTrue(this.nodes.contains(tn));
}
}
public void testToString() {
assertNotNull(this.buildTreeIterable1().toString());
}
public void testMissingMidwife() {
boolean exCaught = false;
try {
for (TreeNode tn : new TreeIterable<TreeNode>(this.buildTree())) {
assertTrue(this.nodes.contains(tn));
}
} catch (RuntimeException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
private Iterable<TreeNode> buildTreeIterable1() {
return new TreeIterable<TreeNode>(this.buildTree()) {
@Override
public Iterator<TreeNode> children(TreeNode next) {
return next.children();
}
};
}
private Iterable<TreeNode> buildTreeIterable2() {
return new TreeIterable<TreeNode>(new TreeNode[] { this.buildTree() }) {
@Override
public Iterator<TreeNode> children(TreeNode next) {
return next.children();
}
};
}
private TreeIterator.Midwife<TreeNode> buildMidwife() {
return new TreeIterator.Midwife<TreeNode>() {
public Iterator<TreeNode> children(TreeNode next) {
return next.children();
}
};
}
private TreeNode buildTree() {
TreeNode root = new TreeNode("root");
TreeNode child1 = new TreeNode(root, "child 1");
new TreeNode(child1, "grandchild 1A");
TreeNode child2 = new TreeNode(root, "child 2");
new TreeNode(child2, "grandchild 2A");
TreeNode grandchild2B = new TreeNode(child2, "grandchild 2B");
new TreeNode(grandchild2B, "great-grandchild 2B1");
new TreeNode(grandchild2B, "great-grandchild 2B2");
TreeNode grandchild2C = new TreeNode(child2, "grandchild 2C");
new TreeNode(grandchild2C, "great-grandchild 2C1");
new TreeNode(root, "child 3");
return root;
}
public class TreeNode {
private String name;
private Collection<TreeNode> children = new ArrayList<TreeNode>();
public TreeNode(String name) {
super();
TreeIterableTests.this.nodes.add(this); // log node
this.name = name;
}
public TreeNode(TreeNode parent, String name) {
this(name);
parent.addChild(this);
}
public String getName() {
return this.name;
}
private void addChild(TreeNode child) {
this.children.add(child);
}
public Iterator<TreeNode> children() {
return this.children.iterator();
}
public int childrenSize() {
return this.children.size();
}
@Override
public String toString() {
return "TreeNode(" + this.name + ")";
}
}
}
|
