1 package org.displaytag.test;
2
3 import junit.framework.Assert;
4
5 import org.apache.commons.lang.ArrayUtils;
6 import org.apache.commons.lang.StringUtils;
7
8
9 /**
10 * Assert class used to compare URLs.
11 * @author Fabrizio Giustina
12 * @version $Revision: 729 $ ($Author: fgiust $)
13 */
14 public final class URLAssert
15 {
16
17 /**
18 * Don't instantiate.
19 */
20 private URLAssert()
21 {
22 // unused
23 }
24
25 /**
26 * utility method for comparing two URLs.
27 * @param expectedUrl expected URL
28 * @param generatedUrl generated URL
29 */
30 public static void assertEquals(String expectedUrl, String generatedUrl)
31 {
32 // hack for missing base url
33 if (expectedUrl.startsWith("?"))
34 {
35 expectedUrl = "[empty]" + expectedUrl;
36 }
37 if (generatedUrl.startsWith("?"))
38 {
39 generatedUrl = "[empty]" + generatedUrl;
40 }
41
42 // if urls contains parameters they could be written in different order
43 String[] generatedSplit = StringUtils.split(generatedUrl, "?#");
44 String[] expectedSplit = StringUtils.split(expectedUrl, "?#");
45
46 Assert.assertEquals(
47 "Different number of tokens (base, parameters, anchor) in link.",
48 generatedSplit.length,
49 expectedSplit.length);
50
51 // same base url
52 Assert.assertEquals("Wrong base url", generatedSplit[0], expectedSplit[0]);
53
54 // same anchor #
55 if (generatedSplit.length > 2)
56 {
57 Assert.assertEquals("Anchor is different", generatedSplit[2], expectedSplit[2]);
58 }
59 else if (generatedSplit.length > 1 && (generatedUrl.indexOf("?") == -1))
60 {
61 // url without parameters
62 Assert.assertEquals("Anchor is different", generatedSplit[1], expectedSplit[1]);
63 return;
64 }
65
66 // same parameters
67 if (generatedSplit.length > 1)
68 {
69 // compare parameters
70 String[] generatedParameters = StringUtils.split(StringUtils.replace(generatedSplit[1], "&", "&"), '&');
71 String[] expectedParameters = StringUtils.split(StringUtils.replace(expectedSplit[1], "&", "&"), '&');
72
73 Assert.assertEquals(
74 "Compared urls have different number of parameters",
75 expectedParameters.length,
76 generatedParameters.length);
77
78 for (int j = 0; j < expectedParameters.length; j++)
79 {
80 // assuming url?param == url?param=
81 String singleParam = expectedParameters[j];
82 if (singleParam.indexOf("=") == -1)
83 {
84 singleParam += "=";
85 }
86 Assert.assertTrue(
87 "Expected parameter " + singleParam + " could not be found in generated URL",
88 ArrayUtils.contains(generatedParameters, singleParam));
89 }
90 }
91 }
92 }
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