Make sure to call done() in a async test
#43
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Since done isn't called in the example test we never reach the callback where we do the expect assertion causing the tests to pass even when they shouldn't since the test suite doesn't know that we need to wait for the callback to called.
By taking the
donecallback in as argument in the test function we signal to the test suite that this test should fail isdone()isn't called.See https://jestjs.io/docs/en/asynchronous.html for further reading.