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https://issues.apache.org/jira/browse/CALCITE-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16615323#comment-16615323
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Andrei Sereda commented on CALCITE-2457:
----------------------------------------

[~vladimirsitnikov], JUnit5 would definitely help me with embedded DB tests. 
Probably by now IDE support for JUnit5 is pretty good (IntelliJ, Eclipse etc.).

Unfortunately [Parallel 
execution|https://junit.org/junit5/docs/snapshot/user-guide/#writing-tests-parallel-execution]
 is still experimental : 

{quote}
Parallel test execution is currently an experimental feature. You’re invited to 
give it a try and provide feedback to the JUnit team so they can improve and 
eventually promote this feature.
{quote}

Are we running at risk in adopting it too early ? 

> Upgrade to JUnit 5
> ------------------
>
>                 Key: CALCITE-2457
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2457
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Vladimir Sitnikov
>            Assignee: Julian Hyde
>            Priority: Major
>         Attachments: assert_equals.png, truth_assertmap.png
>
>
> JUnit 5 brings multiple useful features so tests are easier to read and write.
> Is there something that blocks upgrading to JUnit 5?
> By upgrade I mean bumping up the dependency version and creating new tests 
> with JUnit 5 features.
> Relevant features of JUnit 5: dynamic test, nested tests, parameterized tests
> https://twitter.com/nipafx/status/1027095088059559936



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