def test_missing_finish_node(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.INFO, 'validation test'))
expression.add_edge(1, 2)
with self.assertRaises(RuntimeError):
validator.check_finish_node(expression)
def test_unnecessary_finish_node_value(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH, 'finish'))
expression.add_edge(1, 2)
with self.assertRaises(RuntimeError):
validator.check_unnecessary_node_values(expression)
def test_missing_ground_node_target(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.GROUND))
expression.add_edge(1, 2)
with self.assertRaises(RuntimeError):
validator.check_invalid_connections(expression)
def test_missing_finish_node_source(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.ERROR, 'error'))
expression.add_edge(1, 3)
with self.assertRaises(RuntimeError):
validator.check_invalid_connections(expression)
def test_unnecessary_ground_node_value(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.GROUND, 'ground'))
expression.add_edge(1, 2)
with self.assertRaises(RuntimeError):
validator.check_unnecessary_node_values(expression)
def test_missing_router_node_value(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.ROUTER))
expression.add_edge(1, 2)
expression.add_edge(2, 3)
with self.assertRaises(RuntimeError):
validator.check_missing_node_values(expression)
def test_missing_transformation_node_value(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.TRANSFORMATION))
expression.add_edge(1, 2)
expression.add_edge(2, 3)
with self.assertRaises(RuntimeError):
validator.check_missing_node_values(expression)
def test_missing_token_node_source(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.TOKEN, 'token'))
expression.add_edge(1, 2)
expression.add_edge(3, 2)
with self.assertRaises(RuntimeError):
validator.check_invalid_connections(expression)
def test_multiple_ground_nodes(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.GROUND))
expression.add_node(4, Node(NodeType.GROUND))
expression.add_edge(1, 2)
with self.assertRaises(RuntimeError):
validator.check_ground_nodes(expression)
def test_missing_operation_node_target(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.OPERATION, 'operation'))
expression.add_edge(1, 2)
expression.add_edge(1, 3)
with self.assertRaises(RuntimeError):
validator.check_invalid_connections(expression)
def test_invalid_start_node_source(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.GROUND))
expression.add_edge(1, 2)
expression.add_edge(3, 1)
with self.assertRaises(RuntimeError):
validator.check_invalid_connections(expression)
def test_unnecessary_connection_node_value(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.CONNECTION, 'connection'))
expression.add_node(3, Node(NodeType.FINISH))
expression.add_edge(1, 2)
expression.add_edge(2, 3)
with self.assertRaises(RuntimeError):
validator.check_unnecessary_node_values(expression)
def test_multiple_start_node(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.START))
expression.add_node(3, Node(NodeType.INFO, 'validation test'))
expression.add_node(4, Node(NodeType.FINISH))
expression.add_edge(1, 3)
expression.add_edge(2, 3)
expression.add_edge(3, 4)
with self.assertRaises(RuntimeError):
validator.check_start_node(expression)
def test_referenced_expressions(self):
expression = Expression()
expression.add_node(1, Node(NodeType.START))
expression.add_node(2, Node(NodeType.FINISH))
expression.add_node(3, Node(NodeType.EXPRESSION, 'expression'))
expression.add_edge(1, 2)
expression.add_edge(1, 3)
expression.add_edge(3, 2)
grammar = Grammar()
grammar.add_expression('sample', expression)
with self.assertRaises(RuntimeError):
validator.check_referenced_expressions(grammar)