def test_from_pair(start_value):
cf = CalculatorComplex.from_pair(*start_value)
assert cf.real == CalculatorFloat(start_value[0])
assert cf.imag == CalculatorFloat(start_value[1])
def test_complex_cast_fail():
cc = CalculatorComplex.from_pair("a", "b")
with pytest.raises(ValueError):
assert complex(cc)
def test_complex_abs(initial):
aabs = abs(CalculatorComplex.from_pair(*initial[0]))
assert aabs.isclose(initial[1])
def test_complex_arg(initial):
arg = CalculatorComplex.from_pair(*initial[0]).arg()
assert arg.isclose(initial[1])
def test_complex_conj(initial):
t = CalculatorComplex.from_pair(*initial[0]).conj()
assert t == CalculatorComplex.from_pair(*initial[1])
def test_complex_isclose(initial):
t = CalculatorComplex.from_pair(initial[0][0], initial[0][1]).isclose(
CalculatorComplex.from_pair(initial[1][0], initial[1][1]))
assert t == initial[2]