[React18] Migrate test suites to account for testing library upgrades kibana-security #201151
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SiddharthMantri
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++ LGTM! Would love to know more about
waitFor(() => new Promise((resolve) => resolve(null))) (many thanks to @kapral18, for point out exactly why this works)
I assume this is because it allows the test to effectively pause allowing the re-render to complete?
exactly that's what it does, specifically providing this promise allows us to hook into the internals of waitFor to automatically advance any timers that have been setting within the code that's in the running test |
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… kibana-security (elastic#201151) This PR migrates test suites that use `renderHook` from the library `@testing-library/react-hooks` to adopt the equivalent and replacement of `renderHook` from the export that is now available from `@testing-library/react`. This work is required for the planned migration to react18. ## Context In this PR, usages of `waitForNextUpdate` that previously could have been destructured from `renderHook` are now been replaced with `waitFor` exported from `@testing-library/react`, furthermore `waitFor` that would also have been destructured from the same renderHook result is now been replaced with `waitFor` from the export of `@testing-library/react`. ***Why is `waitFor` a sufficient enough replacement for `waitForNextUpdate`, and better for testing values subject to async computations?*** WaitFor will retry the provided callback if an error is returned, till the configured timeout elapses. By default the retry interval is `50ms` with a timeout value of `1000ms` that effectively translates to at least 20 retries for assertions placed within waitFor. See https://testing-library.com/docs/dom-testing-library/api-async/#waitfor for more information. This however means that for person's writing tests, said person has to be explicit about expectations that describe the internal state of the hook being tested. This implies checking for instance when a react query hook is being rendered, there's an assertion that said hook isn't loading anymore. In this PR you'd notice that this pattern has been adopted, with most existing assertions following an invocation of `waitForNextUpdate` being placed within a `waitFor` invocation. In some cases the replacement is simply a `waitFor(() => new Promise((resolve) => resolve(null)))` (many thanks to @kapral18, for point out exactly why this works), where this suffices the assertions that follow aren't placed within a waitFor so this PR doesn't get larger than it needs to be. It's also worth pointing out this PR might also contain changes to test and application code to improve said existing test. ### What to do next? 1. Review the changes in this PR. 2. If you think the changes are correct, approve the PR. ## Any questions? If you have any questions or need help with this PR, please leave comments in this PR. Co-authored-by: Elastic Machine <[email protected]> (cherry picked from commit f054097)
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…grades kibana-security (#201151) (#202144) # Backport This will backport the following commits from `main` to `8.x`: - [[React18] Migrate test suites to account for testing library upgrades kibana-security (#201151)](#201151) <!--- Backport version: 9.4.3 --> ### Questions ? Please refer to the [Backport tool documentation](https://github.com/sqren/backport) <!--BACKPORT [{"author":{"name":"Eyo O. Eyo","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-11-28T11:11:47Z","message":"[React18] Migrate test suites to account for testing library upgrades kibana-security (#201151)\n\nThis PR migrates test suites that use `renderHook` from the library\r\n`@testing-library/react-hooks` to adopt the equivalent and replacement\r\nof `renderHook` from the export that is now available from\r\n`@testing-library/react`. This work is required for the planned\r\nmigration to react18.\r\n\r\n## Context\r\n\r\nIn this PR, usages of `waitForNextUpdate` that previously could have\r\nbeen destructured from `renderHook` are now been replaced with `waitFor`\r\nexported from `@testing-library/react`, furthermore `waitFor`\r\nthat would also have been destructured from the same renderHook result\r\nis now been replaced with `waitFor` from the export of\r\n`@testing-library/react`.\r\n\r\n***Why is `waitFor` a sufficient enough replacement for\r\n`waitForNextUpdate`, and better for testing values subject to async\r\ncomputations?***\r\n\r\nWaitFor will retry the provided callback if an error is returned, till\r\nthe configured timeout elapses. By default the retry interval is `50ms`\r\nwith a timeout value of `1000ms` that\r\neffectively translates to at least 20 retries for assertions placed\r\nwithin waitFor. See\r\nhttps://testing-library.com/docs/dom-testing-library/api-async/#waitfor\r\nfor more information.\r\nThis however means that for person's writing tests, said person has to\r\nbe explicit about expectations that describe the internal state of the\r\nhook being tested.\r\nThis implies checking for instance when a react query hook is being\r\nrendered, there's an assertion that said hook isn't loading anymore.\r\n\r\nIn this PR you'd notice that this pattern has been adopted, with most\r\nexisting assertions following an invocation of `waitForNextUpdate` being\r\nplaced within a `waitFor`\r\ninvocation. In some cases the replacement is simply a `waitFor(() => new\r\nPromise((resolve) => resolve(null)))` (many thanks to @kapral18, for\r\npoint out exactly why this works),\r\nwhere this suffices the assertions that follow aren't placed within a\r\nwaitFor so this PR doesn't get larger than it needs to be.\r\n\r\nIt's also worth pointing out this PR might also contain changes to test\r\nand application code to improve said existing test.\r\n\r\n### What to do next?\r\n1. Review the changes in this PR.\r\n2. If you think the changes are correct, approve the PR.\r\n\r\n## Any questions?\r\nIf you have any questions or need help with this PR, please leave\r\ncomments in this PR.\r\n\r\nCo-authored-by: Elastic Machine <[email protected]>","sha":"f0540977af8b552cf9eae747c04cf37f3e01c742","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Security","release_note:skip","v9.0.0","backport:prev-minor","React@18"],"title":"[React18] Migrate test suites to account for testing library upgrades kibana-security","number":201151,"url":"https://github.com/elastic/kibana/pull/201151","mergeCommit":{"message":"[React18] Migrate test suites to account for testing library upgrades kibana-security (#201151)\n\nThis PR migrates test suites that use `renderHook` from the library\r\n`@testing-library/react-hooks` to adopt the equivalent and replacement\r\nof `renderHook` from the export that is now available from\r\n`@testing-library/react`. This work is required for the planned\r\nmigration to react18.\r\n\r\n## Context\r\n\r\nIn this PR, usages of `waitForNextUpdate` that previously could have\r\nbeen destructured from `renderHook` are now been replaced with `waitFor`\r\nexported from `@testing-library/react`, furthermore `waitFor`\r\nthat would also have been destructured from the same renderHook result\r\nis now been replaced with `waitFor` from the export of\r\n`@testing-library/react`.\r\n\r\n***Why is `waitFor` a sufficient enough replacement for\r\n`waitForNextUpdate`, and better for testing values subject to async\r\ncomputations?***\r\n\r\nWaitFor will retry the provided callback if an error is returned, till\r\nthe configured timeout elapses. By default the retry interval is `50ms`\r\nwith a timeout value of `1000ms` that\r\neffectively translates to at least 20 retries for assertions placed\r\nwithin waitFor. See\r\nhttps://testing-library.com/docs/dom-testing-library/api-async/#waitfor\r\nfor more information.\r\nThis however means that for person's writing tests, said person has to\r\nbe explicit about expectations that describe the internal state of the\r\nhook being tested.\r\nThis implies checking for instance when a react query hook is being\r\nrendered, there's an assertion that said hook isn't loading anymore.\r\n\r\nIn this PR you'd notice that this pattern has been adopted, with most\r\nexisting assertions following an invocation of `waitForNextUpdate` being\r\nplaced within a `waitFor`\r\ninvocation. In some cases the replacement is simply a `waitFor(() => new\r\nPromise((resolve) => resolve(null)))` (many thanks to @kapral18, for\r\npoint out exactly why this works),\r\nwhere this suffices the assertions that follow aren't placed within a\r\nwaitFor so this PR doesn't get larger than it needs to be.\r\n\r\nIt's also worth pointing out this PR might also contain changes to test\r\nand application code to improve said existing test.\r\n\r\n### What to do next?\r\n1. Review the changes in this PR.\r\n2. If you think the changes are correct, approve the PR.\r\n\r\n## Any questions?\r\nIf you have any questions or need help with this PR, please leave\r\ncomments in this PR.\r\n\r\nCo-authored-by: Elastic Machine <[email protected]>","sha":"f0540977af8b552cf9eae747c04cf37f3e01c742"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/201151","number":201151,"mergeCommit":{"message":"[React18] Migrate test suites to account for testing library upgrades kibana-security (#201151)\n\nThis PR migrates test suites that use `renderHook` from the library\r\n`@testing-library/react-hooks` to adopt the equivalent and replacement\r\nof `renderHook` from the export that is now available from\r\n`@testing-library/react`. This work is required for the planned\r\nmigration to react18.\r\n\r\n## Context\r\n\r\nIn this PR, usages of `waitForNextUpdate` that previously could have\r\nbeen destructured from `renderHook` are now been replaced with `waitFor`\r\nexported from `@testing-library/react`, furthermore `waitFor`\r\nthat would also have been destructured from the same renderHook result\r\nis now been replaced with `waitFor` from the export of\r\n`@testing-library/react`.\r\n\r\n***Why is `waitFor` a sufficient enough replacement for\r\n`waitForNextUpdate`, and better for testing values subject to async\r\ncomputations?***\r\n\r\nWaitFor will retry the provided callback if an error is returned, till\r\nthe configured timeout elapses. By default the retry interval is `50ms`\r\nwith a timeout value of `1000ms` that\r\neffectively translates to at least 20 retries for assertions placed\r\nwithin waitFor. See\r\nhttps://testing-library.com/docs/dom-testing-library/api-async/#waitfor\r\nfor more information.\r\nThis however means that for person's writing tests, said person has to\r\nbe explicit about expectations that describe the internal state of the\r\nhook being tested.\r\nThis implies checking for instance when a react query hook is being\r\nrendered, there's an assertion that said hook isn't loading anymore.\r\n\r\nIn this PR you'd notice that this pattern has been adopted, with most\r\nexisting assertions following an invocation of `waitForNextUpdate` being\r\nplaced within a `waitFor`\r\ninvocation. In some cases the replacement is simply a `waitFor(() => new\r\nPromise((resolve) => resolve(null)))` (many thanks to @kapral18, for\r\npoint out exactly why this works),\r\nwhere this suffices the assertions that follow aren't placed within a\r\nwaitFor so this PR doesn't get larger than it needs to be.\r\n\r\nIt's also worth pointing out this PR might also contain changes to test\r\nand application code to improve said existing test.\r\n\r\n### What to do next?\r\n1. Review the changes in this PR.\r\n2. If you think the changes are correct, approve the PR.\r\n\r\n## Any questions?\r\nIf you have any questions or need help with this PR, please leave\r\ncomments in this PR.\r\n\r\nCo-authored-by: Elastic Machine <[email protected]>","sha":"f0540977af8b552cf9eae747c04cf37f3e01c742"}}]}] BACKPORT--> Co-authored-by: Eyo O. Eyo <[email protected]>
CAWilson94
pushed a commit
to CAWilson94/kibana
that referenced
this pull request
Dec 12, 2024
… kibana-security (elastic#201151) This PR migrates test suites that use `renderHook` from the library `@testing-library/react-hooks` to adopt the equivalent and replacement of `renderHook` from the export that is now available from `@testing-library/react`. This work is required for the planned migration to react18. ## Context In this PR, usages of `waitForNextUpdate` that previously could have been destructured from `renderHook` are now been replaced with `waitFor` exported from `@testing-library/react`, furthermore `waitFor` that would also have been destructured from the same renderHook result is now been replaced with `waitFor` from the export of `@testing-library/react`. ***Why is `waitFor` a sufficient enough replacement for `waitForNextUpdate`, and better for testing values subject to async computations?*** WaitFor will retry the provided callback if an error is returned, till the configured timeout elapses. By default the retry interval is `50ms` with a timeout value of `1000ms` that effectively translates to at least 20 retries for assertions placed within waitFor. See https://testing-library.com/docs/dom-testing-library/api-async/#waitfor for more information. This however means that for person's writing tests, said person has to be explicit about expectations that describe the internal state of the hook being tested. This implies checking for instance when a react query hook is being rendered, there's an assertion that said hook isn't loading anymore. In this PR you'd notice that this pattern has been adopted, with most existing assertions following an invocation of `waitForNextUpdate` being placed within a `waitFor` invocation. In some cases the replacement is simply a `waitFor(() => new Promise((resolve) => resolve(null)))` (many thanks to @kapral18, for point out exactly why this works), where this suffices the assertions that follow aren't placed within a waitFor so this PR doesn't get larger than it needs to be. It's also worth pointing out this PR might also contain changes to test and application code to improve said existing test. ### What to do next? 1. Review the changes in this PR. 2. If you think the changes are correct, approve the PR. ## Any questions? If you have any questions or need help with this PR, please leave comments in this PR. Co-authored-by: Elastic Machine <[email protected]>
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This PR migrates test suites that use
renderHookfrom the library@testing-library/react-hooksto adopt the equivalent and replacement ofrenderHookfrom the export that is now available from@testing-library/react. This work is required for the planned migration to react18.Context
In this PR, usages of
waitForNextUpdatethat previously could have been destructured fromrenderHookare now been replaced withwaitForexported from@testing-library/react, furthermorewaitForthat would also have been destructured from the same renderHook result is now been replaced with
waitForfrom the export of@testing-library/react.Why is
waitFora sufficient enough replacement forwaitForNextUpdate, and better for testing values subject to async computations?WaitFor will retry the provided callback if an error is returned, till the configured timeout elapses. By default the retry interval is
50mswith a timeout value of1000msthateffectively translates to at least 20 retries for assertions placed within waitFor. See https://testing-library.com/docs/dom-testing-library/api-async/#waitfor for more information.
This however means that for person's writing tests, said person has to be explicit about expectations that describe the internal state of the hook being tested.
This implies checking for instance when a react query hook is being rendered, there's an assertion that said hook isn't loading anymore.
In this PR you'd notice that this pattern has been adopted, with most existing assertions following an invocation of
waitForNextUpdatebeing placed within awaitForinvocation. In some cases the replacement is simply a
waitFor(() => new Promise((resolve) => resolve(null)))(many thanks to @kapral18, for point out exactly why this works),where this suffices the assertions that follow aren't placed within a waitFor so this PR doesn't get larger than it needs to be.
It's also worth pointing out this PR might also contain changes to test and application code to improve said existing test.
What to do next?
Any questions?
If you have any questions or need help with this PR, please leave comments in this PR.