Fix TypeError thrown in mockReset/mockClear #81
Merged
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This patch fixes the bug where TypeError is thrown in
mockReset
/mockClear
when the mock has properties withnull
orundefined
values.I encounter this bug when using
jest-mock-extended
along withjest-when
(https://github.com/timkindberg/jest-when/blob/master/src/when.js#L204).jest-when
internally uses__whenMock__
property to store the mock setup, and assignundefined
to this once the mock is reset. CallingmockClear
ormockReset
after that would throw TypeError exception.