Here's my actual code:

test('LocalStrategy:Signup:AlreadyExists  ', async t => {
  t.plan(1)
  await signupDB('test@test', '123123');
  t.throws(signupDB('test@test', 'XXXXXX'));
});

As is, it fails unless the first line is t.plan(0) (Assertion count does not match planned). I would assume a throws would count as an assertion, right?

Second, the docs show error is the second required param, but the assertion is successful no matter what value I put in there. I can even leave it undefined (as above) & it still passes.

As a workaround, I'm using a try catch block that works fine, but it'd be nice to condense the code & just use throws.