Update to React 17 #3388
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Update to React 17 #3388
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Signed-off-by: Antonio Gamez Diaz <agamez@vmware.com>
Signed-off-by: Antonio Gamez Diaz <agamez@vmware.com>
absoludity
approved these changes
Sep 10, 2021
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| mount(<TestComponent />); | ||
| expect(Object.keys(listeners).length).toBe(1); | ||
| expect(Object.keys(listeners).length).toBe(2); |
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I'm not 100% sure, but it has something to do with the changes in the event delegation [1], but I just manually confirmed the hook was working as expected (that is, clicking outside the context switcher and right menu is working as expected), but I performed this change for the tests to pass.
[1] https://reactjs.org/blog/2020/10/20/react-v17.html#changes-to-event-delegation
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Description of the change
This PR simply upgrades the react version from 16 to 17, which is mostly an internal refactor with no new features (they will add them in React 18 instead).
In fact, they say:
However, the enzyme adaptor we are using for the tests has to be updated accordingly (see drawbacks).
Benefits
We will be ready for the upcoming react versions.
Possible drawbacks
There is no official enzyme adapter yet (although there is an open PR enzymejs/enzyme#2430). In the meanwhile, there is an unofficial module published that is working (working=our tests are passing, since enzyme is just for testing) (more info enzymejs/enzyme#2429 (comment))
Applicable issues
N/A
Additional information
There is no reason to merge this PR now, as it is just an update I wanted to perform some time ago, but, as I said, no new features so far. We can hold it until we release 2.4.1, for instance. Up to you, I don't foresee any errors, but let's see what our beloved CI thinks.