Test.UnexpectedError Class
UnexpectedError is subclass of AssertionError that is thrown whenever an error occurs within the course of a test and the test was not expected to throw an error.

UnexpectedError is subclass of AssertionError that is thrown whenever an error occurs within the course of a test and the test was not expected to throw an error.
stack
                
                Defined in
                
            
        
        
        test/js/UnexpectedError.js:33
        
        
Stack information for the error (if provided).