Add getSnapshotBeforeUpdate support into shallow #1657
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koba04
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ljharb
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Jun 28, 2018
| } else { | ||
| instance.componentDidUpdate(prevProps, state); | ||
| let snapshot; | ||
| if ( |
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this logic is a bit hard to read - instead of making each step branch on cDU/gSBU - could we have two branches, one that's entirely cDU and one that's entirely gSBU?
ljharb
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Jun 28, 2018
| @@ -163,6 +163,7 @@ class ReactSixteenAdapter extends EnzymeAdapter { | |||
| this.options = { | |||
| ...this.options, | |||
| enableComponentDidUpdateOnSetState: true, | |||
| supportGetSnapshotBeforeUpdate: true, | |||
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i'll add a new adapter for 16.2 separately, so this is the proper place to update this.
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I've addressed this by #1192
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ljharb
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Jun 29, 2018
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when will this be released? please :) |
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Aug 8, 2018
- [new] add `isFragment` (#1733) - [new] Add `displayNameOfNode`, `isValidElementType` - [new] `mount`: add `hydrateIn` option (#1317, #1707) - [new] Add support for react context element types (#1513) - [new] `shallow`: Add getSnapshotBeforeUpdate support (#1657) - [fix] portals and roots may render fragments (#1733) - [fix] add missing support for animation events (#1569) - [fix] `shallow`: SFCs do not get a `this` (#1703) - [refactor]: add “lifecycles” adapter option (#1696) - [fix] call ref for a root element (#1541) - [fix] Allow empty strings as key props (#1524) - [fix] Fix ShallowWrapper for array-rendering components (#1498) - [refactor] use `react-is` package - [meta] ensure a license and readme is present in all packages when published
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The following packages are now released: |
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This was referenced Oct 1, 2018
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Fix #1602
This PR is to support
getSnapshotBeforeUpdateon shallow.I've added
supportGetSnapshotBeforeUpdateflag intoReactSixteenAdapterto implement this.As a result,
getSnapshotBeforeUpdateis called even if you usereact-test-renderer@<16.3.0so we have to add a new adapter likeenzyme-adapter-react16.2that turn offsupportGetSnapshotBeforeUpdate.You might think
getSnapshotBeforeUpdateshould be called beforerender, but the order is same asreact-dom.https://codepen.io/koba04/pen/erbbvB?editors=0011
React calls
getSnapshotBeforeUpdateat commit phase and callrenderat render phase so whengetSnapshotBeforeUpdateis calledrenderhas already been called.So It's reasonable for me that
shallowcallsgetSnapshotBeforeUpdateafterrender.