def test_build_itself_with_same_amount_of_regexes(self):
rx = regex.Linker([('a', 'some reason'), ('b', 'other reason')], True)
assert len(rx) == 2
def test_do_not_accept_non_pairs(self):
with raises(TypeError):
regex.Linker([('a', )], True)
def test_fail_on_first_regex_with_prepending(self):
rx = regex.Linker(self.rxs, True)
with raises(AssertionError) as exc:
rx(' ')
error = exc.value.args[0]
assert error == 'does not begin with a word'
def test_fail_on_last_regex(self):
rx = regex.Linker(self.rxs)
with raises(AssertionError) as exc:
rx('d- ')
error = exc.value.args[0]
assert error == 'end with an underscore'
def test_fail_on_second_regex(self):
rx = regex.Linker(self.rxs)
with raises(AssertionError) as exc:
rx('f ')
error = exc.value.args[0]
assert error == 'follow a dash'
def test_fail_on_first_regex(self):
rx = regex.Linker(self.rxs)
with raises(AssertionError) as exc:
rx(' ')
error = exc.value.args[0]
assert error == 'begin with a word'
def test_assertion_error_has_message(self):
rx = regex.Linker([(r"\w+$", "does not begin with a word")])
with raises(AssertionError) as exc:
rx('_*')
error = exc.value.args[0]
assert error == 'does not begin with a word'
def test_assertion_error_for_failure(self):
rx = regex.Linker([(r"\d+", "not a digit")])
with raises(AssertionError):
rx('f')