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import unittest |
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from tests_common import CommonTests, add_server_methods |
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import time |
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from datetime import timedelta |
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from opcua import Server |
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from opcua import Client |
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from opcua import ua |
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from opcua import uamethod |
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port_num = 485140 |
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port_discovery = 48550 |
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class TestServer(unittest.TestCase, CommonTests): |
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''' |
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Run common tests on server side |
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Tests that can only be run on server side must be defined here |
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''' |
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@classmethod |
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def setUpClass(self): |
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self.srv = Server() |
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self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num) |
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add_server_methods(self.srv) |
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self.srv.start() |
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self.opc = self.srv |
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self.discovery = Server() |
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self.discovery.set_application_uri("urn:freeopcua:python:discovery") |
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self.discovery.set_endpoint('opc.tcp://localhost:%d' % port_discovery) |
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self.discovery.start() |
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@classmethod |
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def tearDownClass(self): |
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self.srv.stop() |
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self.discovery.stop() |
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def test_discovery(self): |
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client = Client(self.discovery.endpoint.geturl()) |
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client.connect() |
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try: |
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servers = client.find_servers() |
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new_app_uri = "urn:freeopcua:python:server:test_discovery" |
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self.srv.application_uri = new_app_uri |
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self.srv.register_to_discovery(self.discovery.endpoint.geturl(), 0) |
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time.sleep(0.1) # let server register registration |
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new_servers = client.find_servers() |
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self.assertEqual(len(new_servers) - len(servers) , 1) |
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self.assertFalse(new_app_uri in [s.ApplicationUri for s in servers]) |
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self.assertTrue(new_app_uri in [s.ApplicationUri for s in new_servers]) |
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finally: |
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client.disconnect() |
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def test_find_servers2(self): |
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client = Client(self.discovery.endpoint.geturl()) |
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client.connect() |
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try: |
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servers = client.find_servers() |
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new_app_uri1 = "urn:freeopcua:python:server:test_discovery1" |
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self.srv.application_uri = new_app_uri1 |
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self.srv.register_to_discovery(self.discovery.endpoint.geturl(), period=0) |
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new_app_uri2 = "urn:freeopcua:python:test_discovery2" |
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self.srv.application_uri = new_app_uri2 |
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self.srv.register_to_discovery(self.discovery.endpoint.geturl(), period=0) |
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time.sleep(0.1) # let server register registration |
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new_servers = client.find_servers() |
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self.assertEqual(len(new_servers) - len(servers) , 2) |
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self.assertFalse(new_app_uri1 in [s.ApplicationUri for s in servers]) |
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self.assertFalse(new_app_uri2 in [s.ApplicationUri for s in servers]) |
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self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers]) |
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self.assertTrue(new_app_uri2 in [s.ApplicationUri for s in new_servers]) |
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# now do a query with filer |
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new_servers = client.find_servers(["urn:freeopcua:python:server"]) |
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self.assertEqual(len(new_servers) - len(servers) , 0) |
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self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers]) |
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self.assertFalse(new_app_uri2 in [s.ApplicationUri for s in new_servers]) |
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# now do a query with filer |
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new_servers = client.find_servers(["urn:freeopcua:python"]) |
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self.assertEqual(len(new_servers) - len(servers) , 2) |
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self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers]) |
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self.assertTrue(new_app_uri2 in [s.ApplicationUri for s in new_servers]) |
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finally: |
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client.disconnect() |
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""" |
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# not sure if this test is necessary, and there is a lot repetition with previous test |
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def test_discovery_server_side(self): |
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servers = self.discovery.find_servers() |
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self.assertEqual(len(servers), 1) |
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self.srv.register_to_discovery(self.discovery.endpoint.geturl(), 1) |
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time.sleep(1) # let server register registration |
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servers = self.discovery.find_servers() |
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print("SERVERS 2", servers) |
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self.assertEqual(len(servers), 2) |
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""" |
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#def test_register_server2(self): |
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#servers = self.opc.register_server() |
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def test_register_namespace(self): |
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uri = 'http://mycustom.Namespace.com' |
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idx1 = self.opc.register_namespace(uri) |
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idx2 = self.opc.get_namespace_index(uri) |
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self.assertEqual(idx1, idx2) |
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def test_register_use_namespace(self): |
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uri = 'http://my_very_custom.Namespace.com' |
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idx = self.opc.register_namespace(uri) |
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root = self.opc.get_root_node() |
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myvar = root.add_variable(idx, 'var_in_custom_namespace', [5]) |
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myid = myvar.nodeid |
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self.assertEqual(idx, myid.NamespaceIndex) |
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def test_server_method(self): |
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def func(parent, variant): |
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variant.Value *= 2 |
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return [variant] |
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o = self.opc.get_objects_node() |
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v = o.add_method(3, 'Method1', func, [ua.VariantType.Int64], [ua.VariantType.Int64]) |
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result = o.call_method(v, ua.Variant(2.1)) |
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self.assertEqual(result, 4.2) |
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def test_xml_import(self): |
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self.srv.import_xml("tests/custom_nodes.xml") |
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o = self.opc.get_objects_node() |
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v = o.get_child(["MyXMLFolder", "MyXMLObject", "MyXMLVariable"]) |
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val = v.get_value() |
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self.assertEqual(val, "StringValue") |
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def test_historize(self): |
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o = self.opc.get_objects_node() |
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var = o.add_variable(3, "test_hist", 1.0) |
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self.srv.iserver.enable_history(var, timedelta(days=1)) |
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time.sleep(1) |
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var.set_value(2.0) |
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var.set_value(3.0) |
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self.srv.iserver.disable_history(var) |
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def test_references_for_added_nodes_method(self): |
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objects = self.opc.get_objects_node() |
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o = objects.add_object(3, 'MyObject') |
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nodes = objects.get_referenced_nodes(refs=ua.ObjectIds.Organizes, direction=ua.BrowseDirection.Forward, includesubtypes=False) |
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self.assertTrue(o in nodes) |
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nodes = o.get_referenced_nodes(refs=ua.ObjectIds.Organizes, direction=ua.BrowseDirection.Inverse, includesubtypes=False) |
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self.assertTrue(objects in nodes) |
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self.assertEqual(o.get_parent(), objects) |
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self.assertEqual(o.get_type_definition(), ua.ObjectIds.BaseObjectType) |
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@uamethod |
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def callback(parent): |
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return |
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m = o.add_method(3, 'MyMethod', callback) |
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nodes = o.get_referenced_nodes(refs=ua.ObjectIds.HasComponent, direction=ua.BrowseDirection.Forward, includesubtypes=False) |
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self.assertTrue(m in nodes) |
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nodes = m.get_referenced_nodes(refs=ua.ObjectIds.HasComponent, direction=ua.BrowseDirection.Inverse, includesubtypes=False) |
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self.assertTrue(o in nodes) |
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self.assertEqual(m.get_parent(), o) |
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FreeOpcUa /
python-opcua
