def test_quso_addition():
temp = QUSOMatrix({(0, ): 1, (0, 1): 2})
temp1 = {(0, ): -1, (1, 0): 3}
temp2 = {(0, 1): 5}
temp3 = {(0, ): 2, (0, 1): -1}
# add constant
d = temp.copy()
d += 5
d[()] -= 2
d == {(0, ): 1, (0, 1): 2, (): 3}
# __add__
d = temp.copy()
g = d + temp1
assert g == temp2
# __iadd__
d = temp.copy()
d += temp1
assert d == temp2
# __radd__
d = temp.copy()
g = temp1 + d
assert g == temp2
# __sub__
d = temp.copy()
g = d - temp1
assert g == temp3
# __isub__
d = temp.copy()
d -= temp1
assert d == temp3
# __rsub__
d = temp.copy()
g = temp1 - d
assert g == QUSOMatrix(temp3) * -1
def test_quso_multiplication():
temp = QUSOMatrix({(0, ): 1, (0, 1): 2})
temp += 2
# __mul__
d = temp.copy()
g = d * 3
assert g == {(0, ): 3, (0, 1): 6, (): 6}
d = temp.copy()
g = d * 0
assert g == {}
# __imul__
d = temp.copy()
d *= 3
assert d == {(0, ): 3, (0, 1): 6, (): 6}
d = temp.copy()
d *= 0
assert d == {}
# __rmul__
d = temp.copy()
g = 3 * d
assert g == {(0, ): 3, (0, 1): 6, (): 6}
d = temp.copy()
g = 0 * d
assert g == {}
# __truediv__
d = temp.copy()
g = d / 2
assert g == {(0, ): .5, (0, 1): 1, (): 1}
# __itruediv__
d = temp.copy()
d /= 2
assert d == {(0, ): .5, (0, 1): 1, (): 1}
# __floordiv__
d = temp.copy()
g = d // 2
assert g == {(0, 1): 1, (): 1}
# __ifloordiv__
d = temp.copy()
d //= 2
assert d == {(0, 1): 1, (): 1}
# __mul__ but with dict
d = temp.copy()
d *= {(1, ): 2, (0, ): -1}
assert d == {(): -1, (0, ): 2, (1, ): 2, (0, 1): 2}
# __pow__
d = temp.copy()
d **= 2
assert d == {(): 9, (0, ): 4, (1, ): 4, (0, 1): 8}
temp = d.copy()
assert d**3 == d * d * d
# should raise a KeyError since can't fit this into QUSO.
with assert_raises(KeyError):
QUSOMatrix({(0, 1): 1, (2, 3): -1})**2
