def METHOD_NAME(
    self, svc, username, email
):
    # This happens when two or more identical
    # concurrent signup requests race each other to the db.
    with pytest.raises(
        ConflictError,
        match=f"The email address {email} has already been registered.",
    ):
        svc.signup(username="foo", email="foo@bar.com")
        svc.signup(username=username, email=email)