def test_empty_history(self, tmp_path):
settings = BaseSettings(tmp_path)
assert settings.history_size() == 0
assert settings.history_redo_size() == 0
with pytest.raises(IndexError):
settings.history_current_element()
with pytest.raises(IndexError):
settings.history_next_element()
settings.history_pop()
assert settings.history_index == -1
def test_modifying_history(self, tmp_path):
settings = BaseSettings(tmp_path)
for i in range(10):
settings.add_history_element(i)
assert settings.history_size() == 10
assert settings.history_redo_size() == 0
with pytest.raises(IndexError):
settings.history_next_element()
for i in range(9, 5, -1):
assert settings.history_current_element() == i
assert settings.history_pop() == i
assert settings.history_current_element() == 5
assert settings.history_size() == 6
assert settings.history_redo_size() == 4
settings.add_history_element(7)
assert settings.history_size() == 7
assert settings.history_redo_size() == 0