see test fail with message: AssertionError: expected Function { name: '' } to throw exception with a message matching 'Error: negative capacity.', but got 'Error: underflow.'
see test fail with message: AssertionError: expected Function { name: '' } to throw exception with a message matching 'Error: negative capacity.', but got 'Error: underflow.'

wpannell/capstone-project,wpannell/capstone-project,wpannell/capstone-project