def test_quso_addition():
temp = QUSO({('0', '0'): 1, ('0', 1): 2})
temp1 = {('0',): -1, (1, '0'): 3}
temp2 = {(1, '0'): 5, (): 1, ('0',): -1}, {('0', 1): 5, (): 1, ('0',): -1}
temp3 = {(): 1, (1, '0'): -1, ('0',): 1}, {(): 1, ('0', 1): -1, ('0',): 1}
# constant
d = temp.copy()
d += 5
assert d in ({(1, '0'): 2, (): 6}, {('0', 1): 2, (): 6})
# __add__
d = temp.copy()
g = d + temp1
assert g in temp2
# __iadd__
d = temp.copy()
d += temp1
assert d in temp2
# __radd__
d = temp.copy()
g = temp1 + d
assert g in temp2
# __sub__
d = temp.copy()
g = d - temp1
assert g in temp3
# __isub__
d = temp.copy()
d -= temp1
assert d in temp3
# __rsub__
d = temp.copy()
g = temp1 - d
assert g == QUSO(temp3[0])*-1
def test_quso_multiplication():
temp = QUSO({('0', '0'): 1, ('0', 1): 2})
temp1 = {(): 3, (1, '0'): 6}, {(): 3, ('0', 1): 6}
temp2 = {(): .5, (1, '0'): 1}, {(): .5, ('0', 1): 1}
temp3 = {(1, '0'): 1}, {('0', 1): 1}
# constant
d = temp.copy()
d += 3
d *= -2
assert d in ({(1, '0'): -4, (): -8}, {('0', 1): -4, (): -8})
# __mul__
d = temp.copy()
g = d * 3
assert g in temp1
d = temp.copy()
g = d * 0
assert g == {}
# __imul__
d = temp.copy()
d *= 3
assert d in temp1
d = temp.copy()
d *= 0
assert d == {}
# __rmul__
d = temp.copy()
g = 3 * d
assert g in temp1
d = temp.copy()
g = 0 * d
assert g == {}
# __truediv__
d = temp.copy()
g = d / 2
assert g in temp2
# __itruediv__
d = temp.copy()
d /= 2
assert d in temp2
# __floordiv__
d = temp.copy()
g = d // 2
assert g in temp3
# __ifloordiv__
d = temp.copy()
d //= 2
assert d in temp3
# __mul__ but with dict
d = temp.copy()
d *= {(1,): 2, ('0', '0'): -1}
assert d in ({(1,): 2, (): -1, ('0',): 4, ('0', 1): -2},
{(1,): 2, (): -1, ('0',): 4, (1, '0'): -2})
# __pow__
d = temp.copy()
d -= 2
d **= 2
assert d in ({(): 5, ('0', 1): -4}, {(): 5, (1, '0'): -4})
d = temp.copy()
assert d ** 2 == d * d
assert d ** 3 == d * d * d
# should raise a KeyError since can't fit this into QUSO.
with assert_raises(KeyError):
QUSO({('0', 1): 1, ('1', 2): -1})**2