[jira] [Created] (CODEC-332) removeVowels() incorrectly treating leading whitespace as the first character

["Steven Verrell (Jira)" <ji...@apache.org>]

Steven Verrell created CODEC-332:
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             Summary: removeVowels() incorrectly treating leading whitespace as the first character
                 Key: CODEC-332
                 URL: https://issues.apache.org/jira/browse/CODEC-332
             Project: Commons Codec
          Issue Type: Bug
    Affects Versions: 1.19.0
            Reporter: Steven Verrell


It appears that when the input contains leading whitespace, the MatchRatingApproachEncoder.removeVowels(String) method incorrectly treats the whitespace as the first character of the word.

 

 

For example, removeVowels(" AIDAN") => " DN"

The expected result should be "ADN". Is there miss a step like use ".trim()" to remove whitespace from the input?

I used the test code in "/src/test/java/org/apache/commons/codec/language
/MatchRatingApproachEncoderTest.java" and made a minor change to trigger this error.

 

The test code is as follows:



 
{code:java}

@Test
public final void testRemoveVowel__AIDAN_Returns_ADN() {
    assertEquals("ADN", getStringEncoder().removeVowels("AIDAN")); // pass
}

@Test
public final void testRemoveVowel__WithLeadingWhitespace_Returns_ADN() {
    assertEquals("ADN", getStringEncoder().removeVowels(" AIDAN")); //fail
}
{code}
The testRemoveVowel__AIDAN_Returns_ADN test passes successfully, while the testRemoveVowel__WithLeadingWhitespace_Returns_ADN test fails and returns " DN" instead of the expected "ADN".

 



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