def build_operation(input: str) -> Tuple[Fraction, str, Fraction]:
elements: InputElements = Parser.parse_input(input)
first_operand = Fraction(
elements=Parser.parse_fraction(elements["first_operand"]))
second_operand = Fraction(
elements=Parser.parse_fraction(elements["second_operand"]))
return first_operand, elements["operator"], second_operand
def test_extract_from_dict() -> None:
assert Fraction.extract_from_dict(
FractionElements(sign="",
whole_number="",
numerator="1",
denominator="2")) == (1, 2)
assert Fraction.extract_from_dict(
FractionElements(sign="",
whole_number="3",
numerator="1",
denominator="2")) == (7, 2)
assert Fraction.extract_from_dict(
FractionElements(sign="",
whole_number="3",
numerator="",
denominator="")) == (3, 1)
assert Fraction.extract_from_dict(
FractionElements(sign="-",
whole_number="",
numerator="1",
denominator="2")) == (-1, 2)
assert Fraction.extract_from_dict(
FractionElements(sign="-",
whole_number="3",
numerator="1",
denominator="2")) == (-7, 2)
assert Fraction.extract_from_dict(
FractionElements(sign="-",
whole_number="3",
numerator="",
denominator="")) == (-3, 1)
def test_repr() -> None:
assert repr(Fraction("1", "2")) == "Fraction('1', '2')"
assert repr(Fraction("-10", "200")) == "Fraction('-10', '200')"
assert repr(Fraction("5", "12")) == "Fraction('5', '12')"
def test_fraction_div() -> None:
assert str(Fraction("1", "2") / Fraction("6", "5")) == "5/12"
assert str(Fraction("-7", "8") / Fraction("2", "1")) == "-7/16"
assert str(Fraction("33", "50") / Fraction("-1", "3")) == "-1_49/50"
assert str(Fraction("-2", "1") / Fraction("3", "60")) == "-40"
assert str(Fraction("-8", "67") / Fraction("-2", "9")) == "36/67"
def test_fraction_mul() -> None:
assert str(Fraction("1", "2") * Fraction("3", "4")) == "3/8"
assert str(Fraction("-5", "1") * Fraction("-1", "2")) == "2_1/2"
assert str(Fraction("1", "5") * Fraction("3", "1")) == "3/5"
assert str(Fraction("14", "2") * Fraction("200", "4")) == "350"
assert str(Fraction("-1", "2") * Fraction("3", "5")) == "-3/10"
def test_fraction_sub() -> None:
assert str(Fraction("1", "2") - Fraction("3", "4")) == "-1/4"
assert str(Fraction("-1", "2") - Fraction("3", "4")) == "-1_1/4"
assert str(Fraction("10", "2") - Fraction("3", "1")) == "2"
assert str(Fraction("2", "3") - Fraction("-3", "4")) == "1_5/12"
assert str(Fraction("3", "1") - Fraction("1", "60")) == "2_59/60"
def test_fraction_add() -> None:
assert str(Fraction("1", "2") + Fraction("1", "2")) == "1"
assert str(Fraction("2", "1") + Fraction("3", "4")) == "2_3/4"
assert str(Fraction("1", "9") + Fraction("8", "9")) == "1"
assert str(Fraction("10", "2") + Fraction("18", "3")) == "11"
assert str(Fraction("10", "28") + Fraction("100", "56")) == "2_1/7"
def test_fraction_strings() -> None:
assert str(Fraction("-1", "2")) == "-1/2"
assert str(Fraction("4", "2")) == "2"
assert str(Fraction("-10", "9")) == "-1_1/9"
assert str(Fraction("-4", "1")) == "-4"
assert str(Fraction("50", "2")) == "25"