def check_type_extension_node():
assert not is_type_extension_node(Node())
assert not is_type_extension_node(DocumentNode())
assert is_type_extension_node(TypeExtensionNode())
assert not is_type_extension_node(ScalarTypeDefinitionNode())
assert is_type_extension_node(ScalarTypeExtensionNode())
assert not is_type_extension_node(DefinitionNode())
assert not is_type_extension_node(TypeNode())
def check_type_definition_node():
assert not is_type_definition_node(Node())
assert not is_type_definition_node(DocumentNode())
assert is_type_definition_node(TypeDefinitionNode())
assert is_type_definition_node(ScalarTypeDefinitionNode())
assert not is_type_definition_node(TypeSystemDefinitionNode())
assert not is_type_definition_node(DefinitionNode())
assert not is_type_definition_node(TypeNode())
def prints_minimal_ast():
node = ScalarTypeDefinitionNode(name=NameNode(value="foo"))
assert print_ast(node) == "scalar foo"