[ https://issues.apache.org/jira/browse/HADOOP-12693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Akihiro Suda updated HADOOP-12693:
----------------------------------
    Summary: Many misusages of assertEquals(expected, actual)  (was: Many misusage of assertEquals(expected, actual))

> Many misusages of assertEquals(expected, actual)
> ------------------------------------------------
>
>                 Key: HADOOP-12693
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12693
>             Project: Hadoop Common
>          Issue Type: Test
>            Reporter: Akihiro Suda
>            Priority: Trivial
>         Attachments: just-rough-approx.txt
>
>
> The first arg of {{org.JUnit.Assert.assertEquals()}} should be an {{expected}} value, and the second one should be an {{actual}} value.
> {code}
> void assertEquals(T expected, T actual);
> {code}
> http://junit.org/apidocs/org/junit/Assert.html#assertEquals(java.lang.Object, java.lang.Object)
> However, there are so many violations in Hadoop, which can make a misleading message like this:
> {code}
> AssertionError: expected:<actual> but was:<expected>
> {code}.
> Please refer to {{just-rough-approx.txt}}.



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