def move(self, location, new_location):
# TODO these validations can be moved one level higher
validate_location_string(location)
validate_location_string(new_location)
if self[location] is None:
raise EmptyLocationException
if self[location].is_legal_move(location, new_location):
self._execute_move(location, new_location)
def test_location_validator():
nose.tools.ok_(not validate_location_string("H8"))
nose.tools.ok_(not validate_location_string("f7"))
nose.tools.assert_raises(InvalidLocationException,
validate_location_string, "DD6")
nose.tools.assert_raises(InvalidLocationException,
validate_location_string, "K6")
nose.tools.assert_raises(InvalidLocationException,
validate_location_string, "56")
nose.tools.assert_raises(InvalidLocationException,
validate_location_string, "A9")
nose.tools.assert_raises(InvalidLocationException,
validate_location_string, "d0")
def is_location_empty(self, location):
validate_location_string(location)
return True if self._state[location] is None else False
def __getitem__(self, location):
validate_location_string(location)
return self._state[location]