Hi,
How would one make a test that asserts that the tested method is invalid?
If i for example want to test the following (somewhat contrived) method:
def only_valid_number(number) when is_number number do
number
end
A simple success test is trivial:
assert 5 == only_valid_number(5)
But what if I want to verify that:
assert ‘got stacktrace’ == only_valid_number(“5”)
Where I don’t really care why, just that any attempts to use it in this way will fail.
