Fix an issue w/ cleaning up global.document. #855
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ljharb
approved these changes
Mar 23, 2017
src/Utils.js
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| @@ -222,6 +222,11 @@ export function withSetStateAllowed(fn) { | |||
| fn(); | |||
| if (cleanup) { | |||
| delete global.document; | |||
| // This works around a bug in node/jest in that developers aren't able to | |||
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can this be done before deleting it, so that it's always set to undefined, and then deleted when possible?
Except in the most recent versions of node, developers are unable to delete things from global when running code in a node vm. This means that enzyme is failing to clean up after itself when temporarily defining global.document for setState calls. This papers over the issue by explicitly setting global.document to undefined before attempting to delete. If the delete succeeds, the undefined value will be removed. Relevant jest issue - jestjs/jest#3152 Relevant node pr - nodejs/node#11266
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Except in the most recent versions of node, developers are unable to delete
things from global when running code in a node vm. This means that enzyme is
failing to clean up after itself when temporarily defining global.document for
setState calls.
This papers over the issue by explicitly setting global.document to undefined
if it failed to be deleted.
Relevant jest issue - jestjs/jest#3152
Relevant node pr - nodejs/node#11266