string comparison failure for xml string comparison

Question

I am working on a Junit test where the output of a method is a String in XML format.I am not sure why the string comparison is failing

Assert.assertEquals("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" +
            "<RATE>1.0</RATE>", XMLUtil.formatXML(TEST_XML));


Actaul response from the method :
 <?xml version="1.0" encoding="ISO-8859-1"?>
<RATE>1.0</RATE>

Error :

junit.framework.ComparisonFailure: expected:<...oding="ISO-8859-1"?>[
<RATE>1.0</RATE>]> but was:<...oding="ISO-8859-1"?>[
<RATE>1.0</RATE>
]>
    ]

EDIT Even adding new line in the end doesnt help:

Assert.assertEquals("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" +
                "<RATE>1.0</RATE>\n", XMLUtil.formatXML(TEST_XML));

junit.framework.ComparisonFailure: expected:<...oding="ISO-8859-1"?>[
<RATE>1.0</RATE>]
> but was:<...oding="ISO-8859-1"?>[
<RATE>1.0</RATE>
]
>

Different or missing line ending would be an obvious possibility — kiheru
– kiheru, Commented Jul 18, 2013 at 13:17
The actual response has a new line at the end of the XML. Side note: this looks like it would be somehwat unreliable. — Colin M
– Colin M, Commented Jul 18, 2013 at 13:18
Consider using XMLUnit for the job. Many things (not just line-spacing) may differ in XML while still making two files similar. Don't reinvent the wheel. — acdcjunior
– acdcjunior, Commented Jul 18, 2013 at 13:27

Reimeus · Accepted Answer · 2013-07-18 14:22:35Z

2

The expected and actual XML may have different carriage control character content. Try removing all newline and linefeed characters

String expected = 
       "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>RATE>1.0</RATE>";
Assert.assertEquals(expected,
       "<RATE>1.0</RATE>", XMLUtil.formatXML(TEST_XML).replaceAll("[\r\n]", "");

edited Jul 18, 2013 at 14:22

answered Jul 18, 2013 at 13:24

Reimeus

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2 Comments

Bohemian Over a year ago

i'd remove tabs too. actually i'd consider removing all whitespace ie \\s

Reimeus Over a year ago

That depends. The test may need to test for exact whitespace content.

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