def test_invert_dictionary(self): # Signature: name(dct) # Takes a dictionary mapping (keys => values) and returns a # new dictionry mapping (values => keys). # i.e. given a dictionary:: # # {k1:v1, k2:v2, k3:v3, ...} # # it returns a dictionary:: # # {v1:k1, v2:k2, v3:k3, ...} # # It checks to make sure that no values are duplicated before converting. # Good cases: self.assertEqual( invert_dictionary({}), {}, ) self.assertEqual( invert_dictionary({1: True, 2: False}), {True: 1, False: 2}, ) self.assertEqual( invert_dictionary({2: True, 1: False}), {True: 2, False: 1}, ) self.assertEqual( invert_dictionary({'red': 'RED', 'blue': 'BLUE'}), {'BLUE': 'blue', 'RED': 'red'}, ) # Bad cases (Duplicates in values): self.assertRaises( NineMLRuntimeError, invert_dictionary, {'RED': 1, 'BLUE': 1}, ) self.assertRaises( NineMLRuntimeError, invert_dictionary, {True: None, False: None}, ) # Unhashable values: self.assertRaises( NineMLRuntimeError, invert_dictionary, {True: None, False: {1: None}}, )
def get_node_addr(self): """Get the namespace address of this component""" parent = self.get_parent_model() if not parent: return NamespaceAddress.create_root() else: contained_namespace = invert_dictionary(parent.subnodes)[self] return parent.get_node_addr().get_subns_addr(contained_namespace)
def test_invert_dictionary(self): # Signature: name(dct) # Takes a dictionary mapping (keys => values) and returns a # new dictionry mapping (values => keys). # i.e. given a dictionary:: # # {k1:v1, k2:v2, k3:v3, ...} # # it returns a dictionary:: # # {v1:k1, v2:k2, v3:k3, ...} # # It checks to make sure that no values are duplicated before converting. # Good cases: self.assertEqual( invert_dictionary({}), {}, ) self.assertEqual( invert_dictionary({ 1: True, 2: False }), { True: 1, False: 2 }, ) self.assertEqual( invert_dictionary({ 2: True, 1: False }), { True: 2, False: 1 }, ) self.assertEqual( invert_dictionary({ 'red': 'RED', 'blue': 'BLUE' }), { 'BLUE': 'blue', 'RED': 'red' }, ) # Bad cases (Duplicates in values): self.assertRaises( NineMLRuntimeError, invert_dictionary, { 'RED': 1, 'BLUE': 1 }, ) self.assertRaises( NineMLRuntimeError, invert_dictionary, { True: None, False: None }, ) # Unhashable values: self.assertRaises( NineMLRuntimeError, invert_dictionary, { True: None, False: { 1: None } }, )