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Add getSnapshotBeforeUpdate support into shallow #1657
Add getSnapshotBeforeUpdate support into shallow #1657
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Thanks, this is great!
} 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?
@@ -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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I went ahead and made the changes.
when will this be released? please :) |
- [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
The following packages are now released: |
Fix #1602
This PR is to support
getSnapshotBeforeUpdate
on shallow.I've added
supportGetSnapshotBeforeUpdate
flag intoReactSixteenAdapter
to implement this.As a result,
getSnapshotBeforeUpdate
is called even if you usereact-test-renderer@<16.3.0
so we have to add a new adapter likeenzyme-adapter-react16.2
that turn offsupportGetSnapshotBeforeUpdate
.You might think
getSnapshotBeforeUpdate
should be called beforerender
, but the order is same asreact-dom
.https://codepen.io/koba04/pen/erbbvB?editors=0011
React calls
getSnapshotBeforeUpdate
at commit phase and callrender
at render phase so whengetSnapshotBeforeUpdate
is calledrender
has already been called.So It's reasonable for me that
shallow
callsgetSnapshotBeforeUpdate
afterrender
.