[jira] [Resolved] (HDDS-9956) Simplify tests using assertThrows

["Zhaohui Wang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-9956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhaohui Wang resolved HDDS-9956.
--------------------------------
    Resolution: Resolved

> Simplify tests using assertThrows
> ---------------------------------
>
>                 Key: HDDS-9956
>                 URL: https://issues.apache.org/jira/browse/HDDS-9956
>             Project: Apache Ozone
>          Issue Type: Improvement
>          Components: test
>            Reporter: Attila Doroszlai
>            Assignee: Zhaohui Wang
>            Priority: Major
>
> Tests of the following form can be simplified:
> {code}
> try {
>   <some action>
>   fail()
> } catch (Exception e) {
>   assertTrue(e instanceof <SpecificException>)
>   <further assertions>
> }
> {code}
> to:
> {code}
> Exception e = assertThrows(<SpecificException>.class,
>     () -> <some action>);
> <further assertions>
> {code}
> {{e}} can be declared as {{<SpecificException>}} if its specific properties need to be verified (e.g. {{OMException#getResult()}}).  Otherwise I suggest using {{Exception}} for shorter and more uniform code.



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