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From "Oleg Ignatenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-10174) migrate examples tests from Junit 3 to 4
Date Tue, 20 Nov 2018 09:49:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-10174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16692971#comment-16692971
] 

Oleg Ignatenko commented on IGNITE-10174:
-----------------------------------------

(?) When discussing this change [~EdShangGG] pointed to difference in how empty test classes
are reported when tests are run.

The similarity is that both prior and after the change TC bot disregards empty test classes
and grants the visa (which makes sense if you think of it: since there are no test cases to
run, it means there are no problems to report in tested code.

What is different though is how such classes are presented.

The old way, execution shows message like {{ContinuationExamplesSelfTest.initializationError
java.lang.Exception: No runnable methods}} and this warning is muted by the means of TC with
the reference to IGNITE-711 ([example build #5163|https://ci.ignite.apache.org/viewLog.html?buildTypeId=IgniteTests24Java8_Examples&buildId=2359481&branch_IgniteTests24Java8_Examples=pull/5434/head]).

The new way, execution shows message like {{junit.framework.AssertionFailedError: No tests
found in org.apache.ignite.examples.ContinuationExamplesSelfTest}} and this warning is _not_
muted by the means of TC ([example build #5138|https://ci.ignite.apache.org/viewLog.html?buildId=2353596&tab=buildResultsDiv&buildTypeId=IgniteTests24Java8_Examples]).

[~dmitry.pavlov] - since you appear to be actively involved with TC bot, we would appreciate
your thoughts here, is above difference important and is it worth spending effort on making
the empty test classes reported the old way instead of a new one?

> migrate examples tests from Junit 3 to 4
> ----------------------------------------
>
>                 Key: IGNITE-10174
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10174
>             Project: Ignite
>          Issue Type: Sub-task
>    Affects Versions: 2.6
>            Reporter: Oleg Ignatenko
>            Assignee: Oleg Ignatenko
>            Priority: Major
>              Labels: MakeTeamcityGreenAgain
>             Fix For: 2.8
>
>
> If needed, refer parent task for more details.
> This is first task because examples are most publicly visible, relativelly small and
least risky part of unit tests in the project.
> Steps: 1) create Junit-4 based twin of GridAbstractTest (and all needed subclasses),
2) declare GridAbstractTest deprecated with reference to use newer API instead 3) change unit
tests in examples to use new API



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