[AppServices] Fix unhandled promise rejections in search tests #112849
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jloleysens
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| await searchSource | ||
| .fetch$(options) | ||
| .pipe(catchError((e) => e)) |
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I played around with this code for a bit hoping to find a solution that was a bit more direct. Why do you need this line when catch is called below? I approve of the PR but wish I understood this a bit better.
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I think the problem in this test is actually a few lines up above:
searchSourceDependencies.search = jest.fn().mockReturnValue(of(Promise.reject('aaaaa')));The mock search function will throw an uncaught error as soon as fetch$ is called (rather than when it's subscribed to, as the real search function would). In fact, if you keep this line as-is and get rid of the rest of this test, then run the test with the flag, you'll still get the unhandled rejection.
Instead, I think we want to change this line to the following:
searchSourceDependencies.search = jest.fn().mockReturnValue(throwError('aaaaa'));If we make this change, the rest of the test can remain unchanged and we won't see the given error.
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Thanks for taking a closer look @mattkime , I was also a bit confused! And thanks for the explanation @lukasolson ! I'll update the PR.
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jloleysens
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…ic#112849) * updated jest tests to avoid generating unhandled promise rejections * rather use throwError * remove unused imports Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com> # Conflicts: # src/plugins/data/common/search/search_source/search_source.test.ts
…112849) (#113264) * [AppServices] Fix unhandled promise rejections in search tests (#112849) * updated jest tests to avoid generating unhandled promise rejections * rather use throwError * remove unused imports Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com> # Conflicts: # src/plugins/data/common/search/search_source/search_source.test.ts * Fix lint issues
Summary
Partially addresses #112699
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Notes
Added
catchErrorto search source test, not sure this is the correct way to ensure that this rejection gets handled?