def test_add_operator(self):
assert NumberRange(1, 2) + NumberRange(1, 2) == NumberRange(2, 4)
def test_raises_exception_for_badly_constructed_range():
with raises(NumberRangeException):
NumberRange(3, 2)
def test_from_str_exception_handling():
with raises(NumberRangeException):
NumberRange('1 - ')
def test_le_operator(self):
assert NumberRange(0, 2) <= NumberRange(1, 3)
assert NumberRange(1, 3) >= NumberRange(1, 3)
def test_str_representation():
assert str(NumberRange(1, 3)) == '1 - 3'
assert str(NumberRange(1, 1)) == '1'
def test_iadd_operator(self):
range_ = NumberRange(1, 2)
range_ += NumberRange(1, 2)
assert range_ == NumberRange(2, 4)
def test_lt_operator(self):
assert NumberRange(0, 2) < NumberRange(1, 3)
assert not NumberRange(2, 3) < NumberRange(2, 3)
def test_ne_operator(self):
assert not NumberRange(1, 3) != NumberRange(1, 3)
assert NumberRange(1, 3) != NumberRange(1, 4)
def test_support_range_object(self):
num_range = NumberRange(NumberRange(1, 3))
assert num_range.lower == 1
assert num_range.upper == 3
def test_supports_integers(self):
num_range = NumberRange(3)
assert num_range.lower == 3
assert num_range.upper == 3
def test_eq_operator(self):
assert NumberRange(1, 3) == NumberRange(1, 3)
assert not NumberRange(1, 3) == NumberRange(1, 4)
def test_supports_exact_ranges_as_strings(self):
num_range = NumberRange('3')
assert num_range.lower == 3
assert num_range.upper == 3
def test_supports_strings_with_bounds(self):
num_range = NumberRange('[1, 3]')
assert num_range.lower == 1
assert num_range.upper == 3
def test_supports_strings_with_spaces(self):
num_range = NumberRange('1 - 3')
assert num_range.lower == 1
assert num_range.upper == 3
def test_sub_operator(self):
assert NumberRange(1, 3) - NumberRange(1, 2) == NumberRange(0, 1)
def test_gt_operator(self):
assert NumberRange(1, 3) > NumberRange(0, 2)
assert not NumberRange(2, 3) > NumberRange(2, 3)
def test_isub_operator(self):
range_ = NumberRange(1, 3)
range_ -= NumberRange(1, 2)
assert range_ == NumberRange(0, 1)
def test_supports_multiple_args(self):
num_range = NumberRange(1, 3)
assert num_range.lower == 1
assert num_range.upper == 3
