class TestControlledAddition:
"""Tests for controlled addition function"""
s = 0.242
H, t = controlled_addition(s)
def test_identity(self):
"""Test alpha=0 gives identity"""
_, t = controlled_addition(0)
assert t == 0
def test_hermitian(self, hbar):
"""Test output is hermitian"""
assert is_hermitian(self.H)
assert is_hermitian(get_boson_operator(self.H, hbar=hbar))
def test_gaussian(self):
"""Test output is gaussian"""
res = self.H.is_gaussian()
assert res
def test_time(self):
"""Test time parameter is correct"""
assert self.t == self.s
def test_boson_form(self, hbar):
"""Test bosonic form is correct"""
H = normal_ordered(get_boson_operator(self.H, hbar=hbar))
expected = BosonOperator('0 1', -1j)
expected += BosonOperator('0 1^', 1j)
expected += BosonOperator('0^ 1', -1j)
expected += BosonOperator('0^ 1^', 1j)
assert H == expected
def test_controlled_addition(self):
"""Test quadratic coefficients for CXgate"""
H, _ = controlled_addition(0.23)
res, d = quadratic_coefficients(H)
expected = np.fliplr(np.diag([1, 0, 0, 1]))
assert np.allclose(res, expected)
assert np.allclose(d, np.zeros([4]))
def test_controlled_addition(self):
"""Test CXgate produces correct cov and means"""
H, t = controlled_addition(self.r)
resD, resV = self.H_circuit(H, t)
gate = CXgate(self.r)
expD, expV = self.ref_circuit(gate)
# test the covariance matrix
assert np.allclose(resV, expV)
# test the vector of means
assert np.allclose(resD, expD)
def test_controlled_addition(self):
"""Test CXgate produces correct cov and means"""
self.logTestName()
self.eng.reset()
H, t = controlled_addition(self.r)
resD, resV = self.H_circuit(H, t)
gate = CXgate(self.r)
expD, expV = self.ref_circuit(gate)
# test the covariance matrix
self.assertTrue(np.allclose(resV, expV))
# test the vector of means
self.assertTrue(np.allclose(resD, expD))
def test_identity(self):
"""Test alpha=0 gives identity"""
self.logTestName()
_, t = controlled_addition(0)
self.assertEqual(t, 0)
def setUp(self):
"""Parameters"""
self.hbar = 2
self.s = 0.242
self.H, self.t = controlled_addition(self.s)
def test_identity(self):
"""Test alpha=0 gives identity"""
_, t = controlled_addition(0)
assert t == 0