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
|
/*
* Copyright 2014 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onlab.graph;
import com.google.common.testing.EqualsTester;
import org.junit.Test;
import static com.google.common.collect.ImmutableList.of;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
/**
* Test of the default mutable path.
*/
public class DefaultMutablePathTest extends DefaultPathTest {
@Test
public void equality() {
DefaultPath<TestVertex, TestEdge> p1 =
new DefaultPath<>(of(new TestEdge(A, B, 1),
new TestEdge(B, C, 1)), 2.0);
DefaultPath<TestVertex, TestEdge> p2 =
new DefaultPath<>(of(new TestEdge(A, B, 1),
new TestEdge(B, D, 1)), 2.0);
new EqualsTester().addEqualityGroup(new DefaultMutablePath<>(p1),
new DefaultMutablePath<>(p1))
.addEqualityGroup(new DefaultMutablePath<>(p2))
.testEquals();
}
@Test
public void empty() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
assertNull("src should be null", p.src());
assertNull("dst should be null", p.dst());
assertEquals("incorrect edge count", 0, p.edges().size());
assertEquals("incorrect path cost", 0.0, p.cost(), 0.1);
}
@Test
public void pathCost() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
p.setCost(4);
assertEquals("incorrect path cost", 4.0, p.cost(), 0.1);
}
private void validatePath(Path<TestVertex, TestEdge> p,
TestVertex src, TestVertex dst, int length) {
validatePath(p, src, dst, length, 0.0);
}
@Test
public void insertEdge() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
p.insertEdge(new TestEdge(B, C, 1));
p.insertEdge(new TestEdge(A, B, 1));
validatePath(p, A, C, 2);
}
@Test
public void appendEdge() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
p.appendEdge(new TestEdge(A, B, 1));
p.appendEdge(new TestEdge(B, C, 1));
validatePath(p, A, C, 2);
}
@Test
public void removeEdge() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
p.appendEdge(new TestEdge(A, B, 1));
p.appendEdge(new TestEdge(B, C, 1));
p.appendEdge(new TestEdge(C, C, 2));
p.appendEdge(new TestEdge(C, D, 1));
validatePath(p, A, D, 4);
p.removeEdge(new TestEdge(A, B, 1));
validatePath(p, B, D, 3);
p.removeEdge(new TestEdge(C, C, 2));
validatePath(p, B, D, 2);
p.removeEdge(new TestEdge(C, D, 1));
validatePath(p, B, C, 1);
}
@Test
public void toImmutable() {
MutablePath<TestVertex, TestEdge> p = new DefaultMutablePath<>();
p.appendEdge(new TestEdge(A, B, 1));
p.appendEdge(new TestEdge(B, C, 1));
validatePath(p, A, C, 2);
assertEquals("immutables should equal", p.toImmutable(), p.toImmutable());
validatePath(p.toImmutable(), A, C, 2);
}
}
|
