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import unittest
import logging
import xml.etree.ElementTree as Et
from opcua import ua, Server
import opcua.common.type_dictionary_buider
from opcua.common.type_dictionary_buider import OPCTypeDictionaryBuilder, DataTypeDictionaryBuilder
from opcua.common.type_dictionary_buider import get_ua_class, StructNode
port_num = 48540
idx_name = 'http://test.freeopcua.github.io'
def to_camel_case(name):
func = getattr(opcua.common.type_dictionary_buider, '_to_camel_case')
return func(name)
def reference_generator(source_id, target_id, reference_type, is_forward=True):
func = getattr(opcua.common.type_dictionary_buider, '_reference_generator')
return func(source_id, target_id, reference_type, is_forward)
def set_up_test_tree():
ext_head_attributes = {'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance', 'xmlns:tns': idx_name,
'DefaultByteOrder': 'LittleEndian', 'xmlns:opc': 'http://opcfoundation.org/BinarySchema/',
'xmlns:ua': 'http://opcfoundation.org/UA/', 'TargetNamespace': idx_name}
test_etree = Et.ElementTree(Et.Element('opc:TypeDictionary', ext_head_attributes))
name_space = Et.SubElement(test_etree.getroot(), 'opc:Import')
name_space.attrib['Namespace'] = 'http://opcfoundation.org/UA/'
return test_etree
class TypeDictionaryBuilderTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.srv = Server()
cls.srv.set_endpoint('opc.tcp://127.0.0.1:{0:d}'.format(port_num))
cls.idx = cls.srv.register_namespace(idx_name)
cls.srv.start()
@classmethod
def tearDownClass(cls):
cls.srv.stop()
def setUp(self):
self.test_etree = set_up_test_tree()
self.opc_type_builder = OPCTypeDictionaryBuilder(idx_name)
self.dict_builder = DataTypeDictionaryBuilder(self.srv, self.idx, idx_name, 'TestDict')
def tearDown(self):
return
def test_camel_case_1(self):
case = 'TurtleActionlibShapeActionFeedback'
result = to_camel_case('turtle_actionlib/ShapeActionFeedback')
self.assertEquals(result, case)
def test_camel_case_2(self):
case = 'HelloWorldFffD'
result = to_camel_case('Hello#world+fff_**?&&d')
self.assertEquals(result, case)
def test_opc_type_dict_process_type_opc(self):
case = 'opc:Boolean'
result = getattr(self.opc_type_builder, '_process_type')('Boolean')
self.assertEquals(result, case)
def test_opc_type_dict_process_type_tns(self):
case = 'tns:CustomizedStruct'
result = getattr(self.opc_type_builder, '_process_type')('CustomizedStruct')
self.assertEquals(result, case)
def test_opc_type_dict_append_struct_1(self):
case = {'BaseType': 'ua:ExtensionObject',
'Name': 'CustomizedStruct'}
result = self.opc_type_builder.append_struct('CustomizedStruct')
self.assertEquals(result.attrib, case)
def DISABLED_test_opc_type_dict_append_struct_2(self):
case = {'BaseType': 'ua:ExtensionObject',
'Name': 'CustomizedStruct'}
result = self.opc_type_builder.append_struct('customized_#?+`struct')
self.assertEquals(result.attrib, case)
def test_opc_type_dict_add_field_1(self):
structure_name = 'CustomizedStruct'
self.opc_type_builder.append_struct(structure_name)
self.opc_type_builder.add_field('id', ua.VariantType.Boolean, structure_name)
case = {'TypeName': 'opc:Boolean',
'Name': 'id'}
struct_dict = getattr(self.opc_type_builder, '_structs_dict')
result = list(struct_dict[structure_name])[0]
self.assertEquals(result.attrib, case)
def test_opc_type_dict_add_field_2(self):
structure_name = 'CustomizedStruct'
self.opc_type_builder.append_struct(structure_name)
self.opc_type_builder.add_field('id', 'Boolean', structure_name)
case = {'TypeName': 'opc:Boolean',
'Name': 'id'}
struct_dict = getattr(self.opc_type_builder, '_structs_dict')
result = list(struct_dict[structure_name])[0]
self.assertEquals(result.attrib, case)
def test_opc_type_dict_add_field_3(self):
structure_name = 'CustomizedStruct'
self.opc_type_builder.append_struct(structure_name)
self.opc_type_builder.add_field('id', ua.VariantType.Boolean, structure_name, is_array=True)
case = [{'TypeName': 'opc:Int32',
'Name': 'NoOfid'},
{'TypeName': 'opc:Boolean',
'LengthField': 'NoOfid',
'Name': 'id'}]
struct_dict = getattr(self.opc_type_builder, '_structs_dict')
result = [item.attrib for item in list(struct_dict[structure_name])]
self.assertTrue(len(case), len(result))
for item in case:
self.assertTrue(item in result)
def test_opc_type_dict_get_dict_value(self):
structure_name = 'CustomizedStruct'
self.opc_type_builder.append_struct(structure_name)
# external tree operation
appended_struct = Et.SubElement(self.test_etree.getroot(), 'opc:StructuredType')
appended_struct.attrib['BaseType'] = 'ua:ExtensionObject'
appended_struct.attrib['Name'] = to_camel_case(structure_name)
self.opc_type_builder.add_field('id', ua.VariantType.Boolean, structure_name)
# external tree operation
field = Et.SubElement(appended_struct, 'opc:Field')
field.attrib['Name'] = 'id'
field.attrib['TypeName'] = 'opc:Boolean'
case = Et.tostring(self.test_etree.getroot(), encoding='utf-8').decode("utf-8").replace(' ', '')
result = self.opc_type_builder.get_dict_value().decode("utf-8").replace(' ', '').replace('\n', '')
self.assertEqual(result, case)
def test_reference_generator_1(self):
id1 = ua.NodeId(1, namespaceidx=2, nodeidtype=ua.NodeIdType.Numeric)
id2 = ua.NodeId(2, namespaceidx=2, nodeidtype=ua.NodeIdType.Numeric)
ref = ua.NodeId(ua.ObjectIds.HasEncoding, 0)
result = reference_generator(id1, id2, ref)
self.assertTrue(result.IsForward)
self.assertEqual(result.ReferenceTypeId, ref)
self.assertEqual(result.SourceNodeId, id1)
self.assertEqual(result.TargetNodeClass, ua.NodeClass.DataType)
self.assertEqual(result.TargetNodeId, id2)
def test_reference_generator_2(self):
id1 = ua.NodeId(1, namespaceidx=2, nodeidtype=ua.NodeIdType.Numeric)
id2 = ua.NodeId(2, namespaceidx=2, nodeidtype=ua.NodeIdType.Numeric)
ref = ua.NodeId(ua.ObjectIds.HasEncoding, 0)
result = reference_generator(id1, id2, ref, False)
self.assertFalse(result.IsForward)
self.assertEqual(result.ReferenceTypeId, ref)
self.assertEqual(result.SourceNodeId, id1)
self.assertEqual(result.TargetNodeClass, ua.NodeClass.DataType)
self.assertEqual(result.TargetNodeId, id2)
def test_data_type_dict_general(self):
self.assertIsNotNone(self.dict_builder.dict_id)
self.assertIsNotNone(getattr(self.dict_builder, '_type_dictionary'))
def test_data_type_dict_add_dictionary(self):
add_dictionary = getattr(self.dict_builder, '_add_dictionary')
dict_name = 'TestDict'
dict_node = self.srv.get_node(add_dictionary(dict_name))
self.assertEqual(dict_node.get_browse_name(), ua.QualifiedName(dict_name, self.idx))
self.assertEqual(dict_node.get_node_class(), ua.NodeClass.Variable)
self.assertEqual(dict_node.get_parent().nodeid, ua.NodeId(ua.ObjectIds.OPCBinarySchema_TypeSystem, 0))
self.assertEqual(ua.NodeId(ua.ObjectIds.HasComponent, 0),
dict_node.get_references(refs=ua.ObjectIds.HasComponent)[0].ReferenceTypeId)
self.assertEqual(dict_node.get_type_definition(), ua.NodeId(ua.ObjectIds.DataTypeDictionaryType, 0))
self.assertEqual(dict_node.get_display_name(), ua.LocalizedText(dict_name))
self.assertEqual(dict_node.get_data_type(), ua.NodeId(ua.ObjectIds.ByteString))
self.assertEqual(dict_node.get_value_rank(), -1)
def test_data_type_dict_create_data_type(self):
type_name = 'CustomizedStruct2'
created_type = self.dict_builder.create_data_type(type_name)
self.assertTrue(isinstance(created_type, StructNode))
# Test data type node
type_node = self.srv.get_node(created_type.data_type)
self.assertEqual(type_node.get_browse_name(), ua.QualifiedName(type_name, self.idx))
self.assertEqual(type_node.get_node_class(), ua.NodeClass.DataType)
self.assertEqual(type_node.get_parent().nodeid, ua.NodeId(ua.ObjectIds.Structure, 0))
self.assertEqual(ua.NodeId(ua.ObjectIds.HasSubtype, 0),
type_node.get_references(refs=ua.ObjectIds.HasSubtype)[0].ReferenceTypeId)
self.assertEqual(type_node.get_display_name(), ua.LocalizedText(type_name))
# Test description node
desc_node = self.srv.get_node(self.dict_builder.dict_id).get_child("2:{}".format(type_name))
self.assertEqual(desc_node.get_browse_name(), ua.QualifiedName(type_name, self.idx))
self.assertEqual(desc_node.get_node_class(), ua.NodeClass.Variable)
self.assertEqual(desc_node.get_parent().nodeid, self.dict_builder.dict_id)
self.assertEqual(ua.NodeId(ua.ObjectIds.HasComponent, 0),
desc_node.get_references(refs=ua.ObjectIds.HasComponent)[0].ReferenceTypeId)
self.assertEqual(desc_node.get_type_definition(), ua.NodeId(ua.ObjectIds.DataTypeDescriptionType, 0))
self.assertEqual(desc_node.get_display_name(), ua.LocalizedText(type_name))
self.assertEqual(desc_node.get_data_type(), ua.NodeId(ua.ObjectIds.String))
self.assertEqual(desc_node.get_value(), type_name)
self.assertEqual(desc_node.get_value_rank(), -1)
# Test object node
obj_node = type_node.get_children(refs=ua.ObjectIds.HasEncoding)[0]
self.assertEqual(obj_node.get_browse_name(), ua.QualifiedName('Default Binary', 0))
self.assertEqual(obj_node.get_node_class(), ua.NodeClass.Object)
self.assertEqual(obj_node.get_references(refs=ua.ObjectIds.HasEncoding)[0].NodeId, type_node.nodeid)
self.assertEqual(ua.NodeId(ua.ObjectIds.HasEncoding, 0),
obj_node.get_references(refs=ua.ObjectIds.HasEncoding)[0].ReferenceTypeId)
self.assertEqual(obj_node.get_type_definition(), ua.NodeId(ua.ObjectIds.DataTypeEncodingType, 0))
self.assertEqual(obj_node.get_display_name(), ua.LocalizedText('Default Binary'))
self.assertEqual(len(obj_node.get_event_notifier()), 0)
# Test links, three were tested above
struct_node = self.srv.get_node(ua.NodeId(ua.ObjectIds.Structure, 0))
struct_children = struct_node.get_children(refs=ua.ObjectIds.HasSubtype)
self.assertTrue(type_node in struct_children)
dict_node = self.srv.get_node(self.dict_builder.dict_id)
dict_children = dict_node.get_children(refs=ua.ObjectIds.HasComponent)
self.assertTrue(desc_node in dict_children)
self.assertTrue(obj_node in type_node.get_children(ua.ObjectIds.HasEncoding))
self.assertTrue(desc_node in obj_node.get_children(refs=ua.ObjectIds.HasDescription))
self.assertEqual(obj_node.nodeid, desc_node.get_references(refs=ua.ObjectIds.HasDescription,
direction=ua.BrowseDirection.Inverse)[0].NodeId)
def test_data_type_dict_set_dict_byte_string(self):
structure_name = 'CustomizedStruct'
self.dict_builder.create_data_type(structure_name)
self.dict_builder.add_field('id', ua.VariantType.Int32, structure_name)
self.dict_builder.set_dict_byte_string()
# external tree operation
appended_struct = Et.SubElement(self.test_etree.getroot(), 'opc:StructuredType')
appended_struct.attrib['BaseType'] = 'ua:ExtensionObject'
appended_struct.attrib['Name'] = to_camel_case(structure_name)
# external tree operation
field = Et.SubElement(appended_struct, 'opc:Field')
field.attrib['Name'] = 'id'
field.attrib['TypeName'] = 'opc:Int32'
case = Et.tostring(self.test_etree.getroot(), encoding='utf-8').decode("utf-8").replace(' ', '')
result_string = self.srv.get_node(self.dict_builder.dict_id).get_value().decode("utf-8")
result = result_string.replace(' ', '').replace('\n', '')
self.assertEqual(result, case)
def test_data_type_dict_add_field_1(self):
struct_name = 'CustomizedStruct'
self.dict_builder.create_data_type(struct_name)
self.dict_builder.add_field('id', ua.VariantType.Int32, struct_name)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
struct = get_ua_class(struct_name)
self.assertEqual(struct.ua_types[0][0], 'id')
self.assertEqual(struct.ua_types[0][1], 'Int32')
struct_instance = struct()
self.assertEqual(struct_instance.id, 0)
def test_data_type_dict_add_field_2(self):
struct_name = 'AnotherCustomizedStruct'
self.dict_builder.create_data_type(struct_name)
self.dict_builder.add_field('id', ua.VariantType.Int32, struct_name, is_array=True)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
struct = get_ua_class(struct_name)
self.assertEqual(struct.ua_types[0][0], 'id')
self.assertEqual(struct.ua_types[0][1], 'ListOfInt32')
struct_instance = struct()
self.assertTrue(isinstance(struct_instance.id, list))
def test_struct_node_general(self):
struct_name = 'CustomizedStruct'
struct_node = self.dict_builder.create_data_type(struct_name)
self.assertEqual(getattr(struct_node, '_type_dict'), self.dict_builder)
self.assertTrue(isinstance(struct_node.data_type, ua.NodeId))
self.assertEqual(struct_node.name, struct_name)
def test_struct_node_add_field(self):
struct_name = 'CustomizedStruct'
struct_node = self.dict_builder.create_data_type(struct_name)
struct_node.add_field('id', ua.VariantType.Int32)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
struct = get_ua_class(struct_name)
self.assertEqual(struct.ua_types[0][0], 'id')
self.assertEqual(struct.ua_types[0][1], 'Int32')
struct_instance = struct()
self.assertEqual(struct_instance.id, 0)
def test_get_ua_class_1(self):
struct_name = 'CustomizedStruct'
struct_node = self.dict_builder.create_data_type(struct_name)
struct_node.add_field('id', ua.VariantType.Int32)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
try:
self.assertIsNotNone(get_ua_class(struct_name))
except AttributeError:
pass
def DISABLED_test_get_ua_class_2(self):
struct_name = '*c*u_stom-ized&Stru#ct'
struct_node = self.dict_builder.create_data_type(struct_name)
struct_node.add_field('id', ua.VariantType.Int32)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
try:
self.assertIsNotNone(get_ua_class(struct_name))
except AttributeError:
pass
def test_functional_basic(self):
basic_struct_name = 'basic_structure'
basic_struct = self.dict_builder.create_data_type(basic_struct_name)
basic_struct.add_field('ID', ua.VariantType.Int32)
basic_struct.add_field('Gender', ua.VariantType.Boolean)
basic_struct.add_field('Comments', ua.VariantType.String)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
basic_var = self.srv.nodes.objects.add_variable(ua.NodeId(namespaceidx=self.idx), 'BasicStruct',
ua.Variant(None, ua.VariantType.Null),
datatype=basic_struct.data_type)
basic_msg = get_ua_class(basic_struct_name)()
basic_msg.ID = 3
basic_msg.Gender = True
basic_msg.Comments = 'Test string'
basic_var.set_value(basic_msg)
basic_result = basic_var.get_value()
self.assertEqual(basic_result, basic_msg)
def test_functional_advance(self):
basic_struct_name = 'base_structure'
basic_struct = self.dict_builder.create_data_type(basic_struct_name)
basic_struct.add_field('ID', ua.VariantType.Int32)
basic_struct.add_field('Gender', ua.VariantType.Boolean)
basic_struct.add_field('Comments', ua.VariantType.String)
nested_struct_name = 'nested_structure'
nested_struct = self.dict_builder.create_data_type(nested_struct_name)
nested_struct.add_field('Name', ua.VariantType.String)
nested_struct.add_field('Surname', ua.VariantType.String)
nested_struct.add_field('Stuff', basic_struct)
self.dict_builder.set_dict_byte_string()
self.srv.load_type_definitions()
basic_var = self.srv.nodes.objects.add_variable(ua.NodeId(namespaceidx=self.idx), 'BaseStruct',
ua.Variant(None, ua.VariantType.Null),
datatype=basic_struct.data_type)
basic_msg = get_ua_class(basic_struct_name)()
basic_msg.ID = 3
basic_msg.Gender = True
basic_msg.Comments = 'Test string'
basic_var.set_value(basic_msg)
nested_var = self.srv.nodes.objects.add_variable(ua.NodeId(namespaceidx=self.idx), 'NestedStruct',
ua.Variant(None, ua.VariantType.Null),
datatype=nested_struct.data_type)
nested_msg = get_ua_class(nested_struct_name)()
nested_msg.Stuff = basic_msg
nested_msg.Name = 'Max'
nested_msg.Surname = 'Karl'
nested_var.set_value(nested_msg)
basic_result = basic_var.get_value()
self.assertEqual(basic_result, basic_msg)
nested_result = nested_var.get_value()
self.assertEqual(nested_result, nested_msg)
if __name__ == '__main__':
logging.basicConfig(level=logging.WARNING)
unittest.main(verbosity=3)