def test_empty_string_as_upper_character_bound(self):
interval = CharacterInterval.from_string('[a,)')
assert interval.lower == 'a'
assert interval.upper == inf
assert interval.lower_inc
assert not interval.upper_inc
def test_empty_string_as_lower_bound_for_char_interval(self):
interval = CharacterInterval.from_string('[,a)')
assert interval.lower == -inf
assert interval.upper == 'a'
assert interval.lower_inc
assert not interval.upper_inc
def test_supports_characters_with_spaces(self):
interval = CharacterInterval.from_string('A - Z')
assert interval.lower == 'A'
assert interval.upper == 'Z'
assert interval.lower_inc
assert interval.upper_inc
def test_supports_character_intervals(self):
interval = CharacterInterval(('a', 'z'))
assert interval.lower == 'a'
assert interval.upper == 'z'
assert not interval.lower_inc
assert not interval.upper_inc
def test_empty_string_as_lower_bound_for_char_interval(self):
interval = CharacterInterval.from_string('[,a)')
assert interval.lower == -inf
assert interval.upper == 'a'
assert interval.lower_inc
assert not interval.upper_inc
def test_empty_string_as_upper_character_bound(self):
interval = CharacterInterval.from_string('[a,)')
assert interval.lower == 'a'
assert interval.upper == inf
assert interval.lower_inc
assert not interval.upper_inc
def test_supports_characters_with_spaces(self):
interval = CharacterInterval.from_string('A - Z')
assert interval.lower == 'A'
assert interval.upper == 'Z'
assert interval.lower_inc
assert interval.upper_inc
