def test_newstyle_bit_equality(self):
"""Verify bits instances are equal only to themselves."""
bit1 = bit.Bit()
bit2 = bit.Bit()
self.assertEqual(bit1, bit1)
self.assertNotEqual(bit1, bit2)
self.assertNotEqual(bit1, 3.14)
def test_bit_hash_update_index(self):
orig_reg = mock.MagicMock()
orig_reg.size = 4
test_bit = bit.Bit(orig_reg, 0)
orig_hash = hash(test_bit)
test_bit.index = 2
new_hash = hash(test_bit)
self.assertNotEqual(orig_hash, new_hash)
def test_bit_hash_update_reg(self):
orig_reg = mock.MagicMock()
orig_reg.size = 3
new_reg = mock.MagicMock()
orig_reg.size = 4
test_bit = bit.Bit(orig_reg, 0)
orig_hash = hash(test_bit)
test_bit.register = new_reg
new_hash = hash(test_bit)
self.assertNotEqual(orig_hash, new_hash)
def test_bits_do_not_require_registers(self):
"""Verify we can create a bit outside the context of a register."""
self.assertIsInstance(bit.Bit(), bit.Bit)
def test_old_style_bit_equality(self):
test_reg = mock.MagicMock(size=3, name='foo')
test_reg.__str__.return_value = "Register(3, 'foo')"
self.assertEqual(bit.Bit(test_reg, 0), bit.Bit(test_reg, 0))
self.assertNotEqual(bit.Bit(test_reg, 0), bit.Bit(test_reg, 2))
reg_copy = mock.MagicMock(size=3, name='foo')
reg_copy.__str__.return_value = "Register(3, 'foo')"
self.assertEqual(bit.Bit(test_reg, 0), bit.Bit(reg_copy, 0))
self.assertNotEqual(bit.Bit(test_reg, 0), bit.Bit(reg_copy, 1))
reg_larger = mock.MagicMock(size=4, name='foo')
reg_larger.__str__.return_value = "Register(4, 'foo')"
self.assertNotEqual(bit.Bit(test_reg, 0), bit.Bit(reg_larger, 0))
reg_renamed = mock.MagicMock(size=3, name='bar')
reg_renamed.__str__.return_value = "Register(3, 'bar')"
self.assertNotEqual(bit.Bit(test_reg, 0), bit.Bit(reg_renamed, 0))
reg_difftype = mock.MagicMock(size=3, name='bar')
reg_difftype.__str__.return_value = "QuantumRegister(3, 'bar')"
self.assertNotEqual(bit.Bit(test_reg, 0), bit.Bit(reg_difftype, 0))
def test_bit_eq_invalid_type_comparison(self):
orig_reg = mock.MagicMock()
orig_reg.size = 3
test_bit = bit.Bit(orig_reg, 0)
self.assertNotEqual(test_bit, 3.14)
def test_init_raise_if_bits_of_incorrect_type(self, reg_type):
bits = [bit.Bit()]
with self.assertRaisesRegex(CircuitError, "did not all match register type"):
_ = reg_type(bits=bits)
