def test_cell_identity_not_equal_different_tables(self):
table = xypath.Table()
cell_a = xypath._XYCell("foo", 1, 3, table)
other_table = xypath.Table()
self.assertNotEqual(hash(table), hash(other_table))
not_cell_a = copy(cell_a)
not_cell_a.table = other_table
self.assertNotEqual(hash(cell_a), hash(not_cell_a))
self.assertEqual(2, len(set([cell_a, not_cell_a])))
def test_cell_copy(self):
table = xypath.Table()
cell_a = xypath._XYCell("foo", 1, 3, table)
not_cell_a = copy(cell_a)
# Before mutating "not_cell_a", ensure that it is first equal
self.assertEqual(hash(cell_a), hash(not_cell_a))
def test_cell_equality(self):
"""
test_cell_equality: required for expected set behaviour
"""
table = xypath.Table()
cell_a = xypath._XYCell("foo", 1, 3, table)
also_cell_a = xypath._XYCell("foo", 1, 3, table)
self.assertIsNot(cell_a, also_cell_a)
self.assertEqual(cell_a, also_cell_a)
def test_cell_identity(self):
"""
test_cell_identity: given two cells which were instantiated separately
but *actually* belong to the same logical cell (table, co-ordinate,
value), ensure that their identity (as far as the 'set' type is
concerned) is maintained.
"""
table = xypath.Table()
cell_a = xypath._XYCell("foo", 1, 3, table)
also_cell_a = xypath._XYCell("foo", 1, 3, table)
self.assertIsNot(cell_a, also_cell_a)
self.assertEqual(hash(cell_a), hash(also_cell_a))
self.assertEqual(1, len(set([cell_a, also_cell_a])))
def test_cell_shift_takes_tuples(self):
table = xypath.Table()
cell = xypath._XYCell("foo", 1, 3, table)
table.add(cell)
cell.shift([0, 0])