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1
3 package org.jmock.core.constraint;
4
5 import java.lang.reflect.Array  ;
6 import org.jmock.core.Constraint;
7
8
9
13 public class IsEqual implements Constraint
14 {
15 private Object object;
16
17 public IsEqual( Object equalArg ) {
18 object = equalArg;
19 }
20
21 public boolean eval( Object arg ) {
22 return areEqual(object, arg);
23 }
24
25 public StringBuffer describeTo( StringBuffer buffer ) {
26 buffer.append("eq(");
27 if (object == null) {
28 buffer.append("null");
29 } else {
30 buffer.append("<");
31 buffer.append(object);
32 buffer.append(">");
33 }
34 buffer.append(")");
35
36 return buffer;
37 }
38
39 private static boolean areEqual( Object o1, Object o2 ) {
40 if (o1 == null || o2 == null) {
41 return o1 == null && o2 == null;
42 } else if (isArray(o1)) {
43 return isArray(o2) && areArraysEqual(o1, o2);
44 } else {
45 return o1.equals(o2);
46 }
47 }
48
49 private static boolean areArraysEqual( Object o1, Object o2 ) {
50 return areArrayLengthsEqual(o1, o2)
51 && areArrayElementsEqual(o1, o2);
52 }
53
54 private static boolean areArrayLengthsEqual( Object o1, Object o2 ) {
55 return Array.getLength(o1) == Array.getLength(o2);
56 }
57
58 private static boolean areArrayElementsEqual( Object o1, Object o2 ) {
59 for (int i = 0; i < Array.getLength(o1); i++) {
60 if (!areEqual(Array.get(o1, i), Array.get(o2, i))) return false;
61 }
62 return true;
63 }
64
65 private static boolean isArray( Object o ) {
66 return o.getClass().isArray();
67 }
68 }
69 |
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