def test_do_not_allow_numbers_over_9999():
number = 10_000
with pytest.raises(ValueError):
num = KharosthiNumber.from_int(number)
with pytest.raises(ValueError):
num1 = KharosthiNumber.from_int(5000) + KharosthiNumber.from_int(5000)
def test_equality_with_non_int_should_not_raise():
num = KharosthiNumber.from_int(1)
assert (num == object) is False
def test_cannot_supply_invalid_kharosthi_numbers_to_constructor():
with pytest.raises(Exception):
num = KharosthiNumber(1)
def test_addition():
num1 = KharosthiNumber.from_int(150)
num2 = KharosthiNumber.from_int(3200)
assert num1 + num2 == KharosthiNumber.from_int(3350)
def test_zero_is_invalid():
with pytest.raises(ValueError):
num = KharosthiNumber.from_int(0)
with pytest.raises(ValueError):
num2 = KharosthiNumber.from_int(5) - KharosthiNumber.from_int(5)
def test_negative_results_are_invalid():
with pytest.raises(ValueError):
num = KharosthiNumber.from_int(4) - KharosthiNumber.from_int(5)
def test_negative_numbers_are_invalid():
with pytest.raises(ValueError):
num = KharosthiNumber.from_int(-1)
with pytest.raises(ValueError):
num = KharosthiNumber.from_int(5) - KharosthiNumber.from_int(6)
def test_subtraction():
num = KharosthiNumber.from_int(4) - KharosthiNumber.from_int(2)
assert num == KharosthiNumber.from_int(2)
def test_invalid_kharosthi_representations(input):
with pytest.raises(ValueError):
num = KharosthiNumber(input)
def test_create():
num = KharosthiNumber("𐩃")
def test_convert_kharosthi_to_int(input, expected):
num = KharosthiNumber(input)
assert int(num) == expected
def test_create_from_non_mappable_int(input, expected):
num = KharosthiNumber.from_int(input)
assert str(num) == expected
def test_create_from_single_representable_int():
num = KharosthiNumber.from_int(3)
assert str(num) == "𐩂"
assert str(KharosthiNumber.from_int(1)) == "𐩀"