def test_correct_regex2(correct_regex2, final_state2_a, final_state2_b,
final_state2_c):
final_state_a = get_final_state(correct_regex2, 'a')
final_state_b = get_final_state(correct_regex2, 'b')
final_state_c = get_final_state(correct_regex2, 'c')
assert final_state_a == final_state2_a
assert final_state_b == final_state2_b
assert final_state_c == final_state2_c
def test_correct_regex1(correct_regex1, final_state1_a, final_state1_b,
final_state1_c):
final_state_a = get_final_state(correct_regex1, 'a')
final_state_b = get_final_state(correct_regex1, 'b')
final_state_c = get_final_state(correct_regex1, 'c')
assert final_state_a == final_state1_a
assert final_state_b == final_state1_b
assert final_state_c == final_state1_c
def test_stack_not_empty(incorrect_regex_stack_not_empty):
with pytest.raises(Exception) as excinfo:
get_final_state(incorrect_regex_stack_not_empty, 'a')
assert "inconsistent regular expression" in str(excinfo.value)
def test_unknown_symbol(incorrect_regex_unknown_symbol):
with pytest.raises(Exception) as excinfo:
get_final_state(incorrect_regex_unknown_symbol, 'a')
assert "unexpected symbol" in str(excinfo.value)