user-event
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testing-library
Error: Diplayed value in UI can be `null`
Reproduction example
null
Prerequisites
Setting a value to null programmatically.
https://github.com/testing-library/user-event/blob/63ac399e06bd8f2397a6c581915acd29235f2d38/src/document/UI.ts#L24
Expected behavior
Nothing happens
Actual behavior
TypeError: right hand side of 'in' should be an object, got null
Since EcmaScript returns object on typeof null this function is not safe
https://github.com/testing-library/user-event/blob/63ac399e06bd8f2397a6c581915acd29235f2d38/src/document/UI.ts#L24
User-event version
14.6.1
Environment
No response
Additional context
No response
