ngMock.$exceptionHandlerProvider.mode()

Mode of operation, defaults to rethrow.

• log: Sometimes it is desirable to test that an error is thrown, for this case the log

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  mode stores an array of errors in `$exceptionHandler.errors`, to allow later assertion of them. See <a href="/references/JavaScript-AngularJS-ngMock/ngMock%252E%2524log.html#assertEmpty">assertEmpty()</a> and <a href="/references/JavaScript-AngularJS-ngMock/ngMock%252E%2524log.html#reset">reset()</a>

• rethrow: If any errors are passed to the handler in tests, it typically means that there

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  is a bug in the application or test, so this mock will make these tests fail. For any implementations that expect exceptions to be thrown, the `rethrow` mode will also maintain a log of thrown errors.