def test_equiv(self, label1, label2):
"""Test equiv method"""
pauli1 = Pauli(label1)
pauli2 = Pauli(label2)
target = np.all(pauli1.z == pauli2.z) and np.all(
pauli1.x == pauli2.x)
self.assertEqual(pauli1.equiv(pauli2), target)
def test_negate(self, phase):
"""Test negate method"""
op = Pauli(([False], [True], phase))
neg = -op
self.assertTrue(op.equiv(neg))
self.assertEqual(neg.phase, (op.phase + 2) % 4)
