def test_mul(self):
"""Test multiplication."""
p1 = self.ref_p
p2 = Pauli.from_label('ZXXI')
p3 = p1 * p2
self.assertEqual(len(p3), 4)
self.assertEqual(p3.to_label(), 'ZYIY')
def test_imul(self):
"""Test in-place multiplication."""
p1 = self.ref_p
p2 = Pauli.from_label('ZXXI')
p3 = deepcopy(p2)
p2 *= p1
self.assertTrue(p2 != p3)
self.assertEqual(p2.to_label(), 'ZYIY')
def test_insert_paulis(self):
"""Test inserting paulis via pauli object."""
p1 = deepcopy(self.ref_p)
new_p = Pauli.from_label('XY')
p1.insert_paulis(indices=[0], paulis=new_p)
self.assertTrue(p1 != self.ref_p)
self.assertEqual(len(p1), 6)
self.assertEqual(p1.to_label(), self.ref_label + 'XY')