def test_is_boson_preserving_out_of_order(self):
op = BosonOperator(((0, 1), (2, 0), (1, 1), (3, 0)))
self.assertTrue(op.is_boson_preserving())
def test_is_boson_preserving_BosonOperator(self):
op = BosonOperator()
self.assertTrue(op.is_boson_preserving())
def test_is_boson_preserving_three(self):
op = BosonOperator(((0, 1), (2, 1), (4, 0)))
self.assertFalse(op.is_boson_preserving())
def test_is_normal_ordered_long_descending(self):
self.assertTrue(BosonOperator('5^ 3^ 2^ 1^ 0').is_normal_ordered())
def test_is_normal_ordered_multiorder(self):
op = BosonOperator('4 3 2 1') + BosonOperator('3 2')
self.assertTrue(op.is_normal_ordered())
def test_is_normal_ordered_long_not(self):
self.assertTrue(BosonOperator('0 5^ 3^ 2^ 1^').is_normal_ordered())
def test_is_normal_ordered_outoforder(self):
self.assertTrue(BosonOperator('0 1').is_normal_ordered())
def test_is_normal_ordered_annihilate(self):
self.assertTrue(BosonOperator('0').is_normal_ordered())
def test_is_normal_ordered_create(self):
self.assertTrue(BosonOperator('11^').is_normal_ordered())
def test_is_normal_ordered_reversed(self):
self.assertFalse(BosonOperator('2 2^').is_normal_ordered())
def test_is_normal_ordered_number(self):
op = BosonOperator('2^ 2') * -1j
self.assertTrue(op.is_normal_ordered())
def test_is_normal_ordered_empty(self):
op = BosonOperator() * 2
self.assertTrue(op.is_normal_ordered())