def test_sum():
x = qf.sX(1)
y = qf.sY(2, 2.0)
s = qf.pauli_sum(x, y)
assert ((((1, 'X'),), (1+0j)), (((2, 'Y'),), (2+0j))) == s.terms
s2 = qf.pauli_sum(x, x)
assert ((((1, 'X'),), (2+0j)),) == s2.terms
s3 = qf.pauli_sum(x, x, y)
s4 = qf.pauli_sum(y, x, x)
assert s3 == s4
assert ((((1, 'X'),), (2+0j)), (((2, 'Y'),), (2+0j))) == s3.terms
qf.pauli_sum(x, x, x)
def test_sum() -> None:
x = qf.sX(1)
y = qf.sY(2, 2.0)
s = qf.pauli_sum(x, y)
assert s == qf.Pauli(([1], "X", 1.0), ([2], "Y", 2.0))
s2 = qf.pauli_sum(x, x)
assert s2 == qf.Pauli(([1], "X", 2))
s3 = qf.pauli_sum(x, x, y)
s4 = qf.pauli_sum(y, x, x)
assert s3 == s4
assert s3 == qf.Pauli(([1], "X", 2), ([2], "Y", 2))
qf.pauli_sum(x, x, x)
def test_merge_sum():
p = qf.pauli_sum(qf.Pauli(((((1, 'Y'),), (3+0j)),)),
qf.Pauli(((((1, 'Y'),), (2+0j)),)))
assert len(p) == 1
assert p.terms[0][1] == 5
def test_merge_sum() -> None:
p = qf.pauli_sum(qf.Pauli.term([1], "Y", 3), qf.Pauli.term([1], "Y", 2))
assert len(p) == 1
assert p.terms[0][2] == 5