def testPartsArentNone():
"""
FractionValue can't be initialized nor modified to have None as number or fraction part.
"""
with pytest.raises(TypeError):
FractionValue(1, None)
with pytest.raises(TypeError):
FractionValue(None, (0 / 1))
with pytest.raises(TypeError):
FractionValue(None, None)
f = FractionValue(1, Fraction(0, 1))
with pytest.raises(TypeError):
f.SetNumber(None)
with pytest.raises(TypeError):
f.SetFraction(None)
def testBasicUsage():
f = FractionValue(3, Fraction(5, 3))
assert f.number == 3
assert f.fraction == Fraction(5, 3)
f.number = 5.5
f.fraction = Fraction(6, 5)
assert f.number == 5.5
assert f.fraction == Fraction(6, 5)
with pytest.raises(TypeError):
f.SetNumber("hello")
with pytest.raises(TypeError):
f.SetFraction("hello")
with pytest.raises(ValueError):
f.SetFraction((1, 2, 3))
assert FractionValue(3).GetFraction() == Fraction(0, 1)
