47b3159e71
Enhance OpcManager to accept subscription period from configuration - Updated OpcManager to include subscription_period_ms as a parameter for better configurability. - Refactored create_subscription method to utilize the new subscription period parameter. - Adjusted unit tests to reflect changes in subscription handling and ensure correct functionality.
598 lines
20 KiB
Python
598 lines
20 KiB
Python
import json
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from datetime import datetime
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from unittest.mock import AsyncMock, MagicMock, call, patch
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import pytest
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from asyncua.crypto.security_policies import SecurityPolicyBasic256
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from pytest import fixture, mark
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from sientia_do.notifications.models import NotificationLevel
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from ingestor.managers.opc_manager import OpcManager
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tags = {
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'ns=3;i=1001': {
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'aggregation_function': 'LTS',
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'frequency': 1000,
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'max_value': 100,
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'min_value': 0,
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'tag_name': 'Counter',
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},
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'ns=3;i=1003': {
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'aggregation_function': 'AVG',
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'frequency': 1000,
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'max_value': 100,
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'min_value': 0,
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'tag_name': 'Random',
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},
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'ns=3;i=1004': {
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'aggregation_function': 'MDN',
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'frequency': 1000,
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'max_value': 100,
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'min_value': 0,
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'tag_name': 'Sawtooth',
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},
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}
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metadata = {
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'metadata': {
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'model_id': 'test_model',
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'model_name': 'test_model',
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'workflow_name': 'test_workflow',
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'schema_name': 'test_schedule',
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},
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}
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@fixture
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@patch('ingestor.managers.opc_manager.metrics')
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def raw_opc_manager(mock_metrics):
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return OpcManager(
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name='TestConnector',
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url='opc.tcp://localhost:4840',
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data_manager=MagicMock(),
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subscription_period_ms=1000,
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logger=MagicMock(),
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server_uri='opc.tcp://localhost:4840',
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notification_handler=MagicMock(),
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metadata=metadata['metadata'],
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)
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@fixture
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def opc_manager(raw_opc_manager):
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raw_opc_manager.client = AsyncMock()
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raw_opc_manager.cert_path = 'cert.pem'
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raw_opc_manager.private_key_path = 'private_key.pem'
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raw_opc_manager.server_cert_path = 'server_cert.pem'
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raw_opc_manager.send_notification = MagicMock()
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return raw_opc_manager
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@fixture
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def opc_manager_subscribed(opc_manager):
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opc_manager.subscriptions['sub1'] = AsyncMock()
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return opc_manager
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def test___str__(opc_manager):
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assert (
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str(opc_manager)
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== 'OpcManager(name=TestConnector, url=opc.tcp://localhost:4840, server_uri=opc.tcp://localhost:4840)\nnodes={}, subscriptions={}'
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)
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@mark.asyncio
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async def test_shutdown_success(opc_manager):
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opc_manager.disconnect = AsyncMock()
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await opc_manager.shutdown()
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opc_manager.disconnect.assert_called_once()
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@mark.asyncio
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async def test_shutdown_error(opc_manager):
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opc_manager.disconnect = AsyncMock(side_effect=Exception('Test error'))
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await opc_manager.shutdown()
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opc_manager.logger.error.assert_called_once_with('Error during cleanup: Test error')
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@mark.asyncio
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async def test_set_security_success(opc_manager):
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await opc_manager.set_security()
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opc_manager.client.set_application_uri.assert_called_once_with(opc_manager.server_uri)
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opc_manager.client.set_security.assert_called_once_with(
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SecurityPolicyBasic256,
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certificate=opc_manager.cert_path,
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private_key=opc_manager.private_key_path,
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server_certificate=opc_manager.server_cert_path,
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)
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opc_manager.client.set_secure_channel_timeout.assert_called_once_with(10000000)
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opc_manager.client.set_session_timeout.assert_called_once_with(10000000)
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@mark.asyncio
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async def test_set_security_no_cert(opc_manager):
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opc_manager.cert_path = None
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opc_manager.private_key_path = None
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try:
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await opc_manager.set_security()
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except ValueError as e:
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assert str(e) == 'Certificate and private key paths must be provided for secure connection.'
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else:
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raise AssertionError('ValueError not raised')
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assert opc_manager.client.set_security.call_count == 0
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@mark.asyncio
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@patch('ingestor.managers.opc_manager.metrics')
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@patch('ingestor.managers.opc_manager.Client')
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async def test_connect_no_security(client, mock_metrics, raw_opc_manager):
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raw_opc_manager.set_security = AsyncMock()
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client.return_value = AsyncMock()
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await raw_opc_manager.connect()
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client.assert_called_once_with(raw_opc_manager.url, watchdog_intervall=3600000)
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raw_opc_manager.client.connect.assert_called_once()
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raw_opc_manager.set_security.assert_not_called()
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mock_metrics.OPC_CONNECTIONS_TOTAL.labels.assert_called_once_with(
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pod_id=raw_opc_manager.pod_id, server_name=raw_opc_manager.name
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)
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mock_metrics.OPC_CONNECTIONS_TOTAL.labels.return_value.inc.assert_called_once()
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mock_metrics.OPC_CONNECTION_STATUS.labels.assert_called_once_with(
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pod_id=raw_opc_manager.pod_id,
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server_name=raw_opc_manager.name,
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server_url=raw_opc_manager.url,
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)
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mock_metrics.OPC_CONNECTION_STATUS.labels.return_value.set.assert_called_once_with(1)
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mock_metrics.OPC_CONNECTIONS_FAILED.labels.assert_not_called()
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@mark.asyncio
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@patch('ingestor.managers.opc_manager.Client')
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async def test_connect_with_security(client, raw_opc_manager):
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raw_opc_manager.cert_path = 'cert.pem'
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raw_opc_manager.private_key_path = 'private_key.pem'
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raw_opc_manager.server_cert_path = 'server_cert.pem'
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raw_opc_manager.set_security = AsyncMock()
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client.return_value = AsyncMock()
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await raw_opc_manager.connect()
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client.assert_called_once_with(raw_opc_manager.url, watchdog_intervall=3600000)
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raw_opc_manager.client.connect.assert_called_once()
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raw_opc_manager.set_security.assert_called_once()
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@mark.asyncio
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@patch('ingestor.managers.opc_manager.Client')
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@patch('ingestor.managers.opc_manager.metrics')
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async def test_connect_exception_handling_and_metrics(
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mock_metrics_module, mock_opc_client_class, raw_opc_manager
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):
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mock_client_instance = mock_opc_client_class.return_value
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simulated_error_message = 'Erro de conexão simulado'
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mock_client_instance.connect.side_effect = Exception(simulated_error_message)
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opc_manager_instance = raw_opc_manager
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opc_manager_instance.cert_path = None
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with pytest.raises(Exception, match=simulated_error_message):
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await opc_manager_instance.connect()
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mock_metrics_module.OPC_CONNECTIONS_TOTAL.labels.assert_called_once_with(
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pod_id=opc_manager_instance.pod_id, server_name=opc_manager_instance.name
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)
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mock_metrics_module.OPC_CONNECTIONS_TOTAL.labels.return_value.inc.assert_called_once()
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mock_metrics_module.OPC_CONNECTION_STATUS.labels.assert_called_once_with(
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pod_id=opc_manager_instance.pod_id,
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server_name=opc_manager_instance.name,
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server_url=opc_manager_instance.url,
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)
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mock_metrics_module.OPC_CONNECTION_STATUS.labels.return_value.set.assert_called_once_with(0)
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mock_metrics_module.OPC_CONNECTIONS_FAILED.labels.assert_called_once_with(
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pod_id=opc_manager_instance.pod_id, server_name=opc_manager_instance.name
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)
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mock_metrics_module.OPC_CONNECTIONS_FAILED.labels.return_value.inc.assert_called_once()
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opc_manager_instance.logger.error.assert_called_once_with(
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f'Failed to connect to {opc_manager_instance.name}: {simulated_error_message}'
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)
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@mark.asyncio
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async def test_create_subscription_no_client(raw_opc_manager):
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try:
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await raw_opc_manager.create_subscription('sub1')
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except ValueError as e:
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assert str(e) == 'Client not connected. Call connect first.'
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else:
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raise AssertionError('ValueError not raised')
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@mark.asyncio
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async def test_create_subscription_success_has_period(opc_manager):
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await opc_manager.create_subscription('sub1')
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opc_manager.client.create_subscription.assert_called_once_with(
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opc_manager.subscription_period_ms, opc_manager)
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assert opc_manager.subscriptions['sub1'] is not None
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@mark.asyncio
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async def test_create_subscription_success_no_period(opc_manager):
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await opc_manager.create_subscription('sub1')
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opc_manager.client.create_subscription.assert_called_once_with(
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opc_manager.subscription_period_ms, opc_manager)
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assert opc_manager.subscriptions['sub1'] is not None
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@patch('ingestor.managers.opc_manager.metrics')
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@mark.asyncio
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async def test_create_subscription_with_metrics(metrics, opc_manager):
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await opc_manager.create_subscription('sub1')
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metrics.OPC_SUBSCRIPTIONS_CREATED.labels.assert_called_once_with(
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pod_id=opc_manager.pod_id, server_name=opc_manager.name, slot_name='sub1'
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)
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metrics.OPC_SUBSCRIPTIONS_CREATED.labels.return_value.inc.assert_called_once()
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@patch('ingestor.managers.opc_manager.metrics')
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@mark.asyncio
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async def test_create_subscription_exception_during_client_call(
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mock_metrics_module, raw_opc_manager
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):
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opc_manager_instance = raw_opc_manager
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opc_manager_instance.client = AsyncMock()
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subscription_name = 'test_sub_client_error'
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simulated_period = 750
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simulated_error_message = 'Falha ao criar subscrição no cliente OPC'
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opc_manager_instance.client.create_subscription.side_effect = Exception(simulated_error_message)
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with pytest.raises(Exception, match=simulated_error_message):
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await opc_manager_instance.create_subscription(subscription_name, period=simulated_period)
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opc_manager_instance.client.create_subscription.assert_called_once_with(
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simulated_period, opc_manager_instance
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)
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opc_manager_instance.logger.error.assert_called_once_with(
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f'Failed to create subscription {subscription_name} on {opc_manager_instance.name}: {simulated_error_message}'
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)
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mock_metrics_module.OPC_SUBSCRIPTIONS_CREATED.labels.assert_not_called()
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@patch('ingestor.managers.opc_manager.metrics')
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@mark.asyncio
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async def test_subscribe_no_subscription(metrics, opc_manager):
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try:
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await opc_manager.subscribe('sub1', tags, 1000)
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except ValueError as e:
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assert str(e) == 'Subscription not created. Call create_subscription first.'
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else:
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raise AssertionError('ValueError not raised')
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metrics.OPC_TAGS_SUBSCRIBED.labels.assert_not_called()
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@mark.asyncio
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async def test_subscribe_success(opc_manager_subscribed):
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opc_manager_subscribed.client.get_node = MagicMock()
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opc_manager_subscribed.nodes = {'ns=3;i=1001': 'data'}
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await opc_manager_subscribed.subscribe('sub1', tags, 1000)
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assert opc_manager_subscribed.nodes == tags
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opc_manager_subscribed.subscriptions['sub1'].subscribe_data_change.assert_called_once_with(
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[opc_manager_subscribed.client.get_node(n) for n in tags]
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)
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@mark.asyncio
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async def test_unsubscribe_no_subscription(opc_manager):
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await opc_manager.unsubscribe('sub1')
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opc_manager.logger.warning.assert_called_once_with(
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"Subscription 'sub1' not found. Cannot unsubscribe."
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)
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assert opc_manager.subscriptions.get('sub1') is None
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@mark.asyncio
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async def test_unsubscribe_success(opc_manager_subscribed):
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await opc_manager_subscribed.unsubscribe('sub1')
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assert opc_manager_subscribed.subscriptions.get('sub1') is None
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@mark.asyncio
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async def test_disconnect_success(opc_manager_subscribed):
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opc_manager_subscribed.client = MagicMock()
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await opc_manager_subscribed.disconnect()
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opc_manager_subscribed.subscriptions['sub1'].delete.assert_called_once()
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assert opc_manager_subscribed.client is None
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@mark.asyncio
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async def test_disconnect_no_client(opc_manager_subscribed):
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opc_manager_subscribed.client = None
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assert await opc_manager_subscribed.disconnect() is None
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opc_manager_subscribed.logger.warning.assert_has_calls(
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[
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call('Client already disconnected.'),
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]
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)
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@mark.asyncio
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async def test_disconnect_error_unsubscribe(opc_manager_subscribed):
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opc_manager_subscribed.client = MagicMock(disconnect=AsyncMock())
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opc_manager_subscribed.subscriptions['sub1'] = MagicMock(
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delete=AsyncMock(side_effect=Exception('Test error'))
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)
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await opc_manager_subscribed.disconnect()
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opc_manager_subscribed.subscriptions['sub1'].delete.assert_called_once()
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opc_manager_subscribed.client = None
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opc_manager_subscribed.logger.error.assert_called_once_with(
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'Failed to clean up subscription: Test error'
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)
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@mark.asyncio
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async def test_disconnect_error(opc_manager_subscribed):
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opc_manager_subscribed.client = MagicMock()
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opc_manager_subscribed.client.disconnect = MagicMock(side_effect=Exception('Test error'))
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await opc_manager_subscribed.disconnect()
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opc_manager_subscribed.subscriptions['sub1'].delete.assert_called_once()
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opc_manager_subscribed.client = None
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opc_manager_subscribed.logger.error.assert_called_once_with(
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'Failed to disconnect from OPC UA server: Test error'
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)
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@patch('ingestor.managers.opc_manager.metrics')
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@mark.asyncio
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async def test_disconnect_metrics_on_successful_path(mock_metrics_module, raw_opc_manager):
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mock_metrics_module.OPC_CONNECTION_STATUS.reset_mock()
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mock_metrics_module.OPC_TAGS_SUBSCRIBED.reset_mock()
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raw_opc_manager.client = MagicMock()
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mock_sub1 = MagicMock()
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mock_sub2 = MagicMock()
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raw_opc_manager.subscriptions = {'sub1': mock_sub1, 'sub2': mock_sub2}
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await raw_opc_manager.disconnect()
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mock_metrics_module.OPC_CONNECTION_STATUS.labels.assert_called_once_with(
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pod_id=raw_opc_manager.pod_id,
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server_name=raw_opc_manager.name,
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server_url=raw_opc_manager.url,
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)
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mock_metrics_module.OPC_CONNECTION_STATUS.labels.return_value.set.assert_called_once_with(0)
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mock_metrics_module.OPC_TAGS_SUBSCRIBED.labels.assert_called_once_with(
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pod_id=raw_opc_manager.pod_id, server_name=raw_opc_manager.name
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)
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mock_metrics_module.OPC_TAGS_SUBSCRIBED.labels.return_value.set.assert_called_once_with(0)
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@patch('ingestor.managers.opc_manager.metrics')
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@mark.asyncio
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async def test_datachange_notification(metrics, opc_manager_subscribed):
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data = MagicMock(
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monitored_item=MagicMock(
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Value=MagicMock(
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Value=MagicMock(Value=42),
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SourceTimestamp=datetime.strptime('2021-01-01T00:00:00', '%Y-%m-%dT%H:%M:%S'),
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)
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)
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)
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opc_manager_subscribed.nodes = {
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'ns=3;i=1001': {
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'tag_name': 'Counter',
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'cycle_rule': {'cycle_increment': 1.0, 'cycle_count': 2},
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'topics': ['topic1', 'topic2'],
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}
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}
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metrics.OPC_CYCLES_WITHOUT_DATA.reset_mock()
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await opc_manager_subscribed.datachange_notification('ns=3;i=1001', None, data)
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opc_manager_subscribed.data_manager.publish.assert_any_call(
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'topic1',
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{
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'tag': 'ns=3;i=1001',
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'name': 'Counter',
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'timestamp': '2021-01-01 00:00:00-0300',
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'value': 42,
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},
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)
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opc_manager_subscribed.data_manager.publish.assert_any_call(
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'topic2',
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{
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'tag': 'ns=3;i=1001',
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'name': 'Counter',
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'timestamp': '2021-01-01 00:00:00-0300',
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'value': 42,
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},
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)
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assert opc_manager_subscribed.nodes['ns=3;i=1001']['cycle_rule']['cycle_count'] == 0
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metrics.OPC_CYCLES_WITHOUT_DATA.labels.assert_called_once_with(
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pod_id=opc_manager_subscribed.pod_id, server_name=opc_manager_subscribed.name
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)
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metrics.OPC_CYCLES_WITHOUT_DATA.labels.return_value.set.assert_called_once_with(0)
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def test_check_cycles_no_notification(opc_manager):
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# Setup: node with cycle_count just below threshold
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opc_manager.nodes = {
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'ns=3;i=1001': {
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'tag_name': 'Counter',
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'cycle_rule': {'cycle_increment': 1.0, 'cycle_count': 3.0},
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}
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}
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opc_manager.check_cycles()
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# After one increment, cycle_count = 4.0, still below threshold
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assert opc_manager.nodes['ns=3;i=1001']['cycle_rule']['cycle_count'] == pytest.approx(4.0)
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opc_manager.send_notification.assert_not_called()
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|
|
|
def test_check_cycles_triggers_notification(opc_manager):
|
|
# Setup: node with cycle_count just below threshold, increment will cross threshold
|
|
opc_manager.nodes = {
|
|
'ns=3;i=1001': {
|
|
'tag_name': 'Counter',
|
|
'cycle_rule': {'cycle_increment': 2.5, 'cycle_count': 3.0},
|
|
}
|
|
}
|
|
opc_manager.notification_handler.build_and_send_notification = MagicMock()
|
|
|
|
opc_manager.check_cycles()
|
|
|
|
# After increment, cycle_count = 5.5, should trigger notification
|
|
assert opc_manager.nodes['ns=3;i=1001']['cycle_rule']['cycle_count'] == pytest.approx(5.5)
|
|
opc_manager.send_notification.assert_called_once_with(
|
|
notification_id='TAG_ns=3;i=1001:Counter_LISTENNING_STOPPED',
|
|
message='5.5 cycles without receive from ns=3;i=1001:Counter',
|
|
block='opc_manager',
|
|
level=NotificationLevel.WARNING,
|
|
metadata=metadata['metadata'],
|
|
)
|
|
|
|
|
|
@patch('ingestor.managers.opc_manager.metrics')
|
|
def test_check_opc_listenning_no_notification(metrics, opc_manager):
|
|
opc_manager.non_receive_count = 3
|
|
opc_manager.notification_handler.build_and_send_notification = MagicMock()
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.reset_mock()
|
|
metrics.OPC_RECONNECTIONS_TOTAL.reset_mock()
|
|
|
|
result = opc_manager.check_opc_listenning()
|
|
|
|
assert opc_manager.non_receive_count == 4
|
|
opc_manager.notification_handler.build_and_send_notification.assert_not_called()
|
|
assert result is False
|
|
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.labels.assert_called_once_with(
|
|
pod_id=opc_manager.pod_id, server_name=opc_manager.name
|
|
)
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.labels.return_value.set.assert_called_once_with(
|
|
opc_manager.non_receive_count
|
|
)
|
|
metrics.OPC_RECONNECTIONS_TOTAL.labels.assert_not_called()
|
|
|
|
|
|
def test_check_opc_listenning_warning_notification(opc_manager):
|
|
opc_manager.non_receive_count = 4
|
|
|
|
result = opc_manager.check_opc_listenning()
|
|
|
|
assert opc_manager.non_receive_count == 5
|
|
opc_manager.send_notification.assert_called_once_with(
|
|
notification_id=f'OPC_LISTENNING_STOPPED__{opc_manager.name}',
|
|
message=f'5 cycles without receive from OPC {opc_manager.name}. Tags: {json.dumps(opc_manager.nodes)}',
|
|
block='opc_manager',
|
|
level=NotificationLevel.ERROR,
|
|
metadata=metadata['metadata'],
|
|
)
|
|
assert result is False
|
|
|
|
|
|
@patch('ingestor.managers.opc_manager.metrics')
|
|
def test_check_opc_listenning_error_notification_and_retry(metrics, opc_manager):
|
|
opc_manager.non_receive_count = 14
|
|
opc_manager.notification_handler.build_and_send_notification = MagicMock()
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.reset_mock()
|
|
metrics.OPC_RECONNECTIONS_TOTAL.reset_mock()
|
|
|
|
result = opc_manager.check_opc_listenning()
|
|
|
|
assert opc_manager.non_receive_count == 15
|
|
# Should be called twice: once for 5, once for 15
|
|
assert opc_manager.send_notification.call_count == 2
|
|
calls = opc_manager.send_notification.call_args_list
|
|
# First call: 5 cycles warning
|
|
assert calls[0].kwargs == {
|
|
'notification_id': f'OPC_LISTENNING_STOPPED__{opc_manager.name}',
|
|
'message': f'15 cycles without receive from OPC {opc_manager.name}. Tags: {json.dumps(opc_manager.nodes)}',
|
|
'block': 'opc_manager',
|
|
'level': NotificationLevel.ERROR,
|
|
'metadata': metadata['metadata'],
|
|
}
|
|
# Second call: 15 cycles retry
|
|
assert calls[1].kwargs == {
|
|
'notification_id': f'OPC_CONNECTION_RETRY__{opc_manager.name}',
|
|
'message': f'Retrying to connect to server {opc_manager.name}',
|
|
'block': 'opc_manager',
|
|
'level': NotificationLevel.ERROR,
|
|
'metadata': metadata['metadata'],
|
|
}
|
|
assert result is True
|
|
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.labels.assert_called_once_with(
|
|
pod_id=opc_manager.pod_id, server_name=opc_manager.name
|
|
)
|
|
metrics.OPC_CYCLES_WITHOUT_DATA.labels.return_value.set.assert_called_once_with(
|
|
opc_manager.non_receive_count
|
|
)
|
|
|
|
metrics.OPC_RECONNECTIONS_TOTAL.labels.assert_called_once_with(
|
|
pod_id=opc_manager.pod_id, server_name=opc_manager.name
|
|
)
|
|
metrics.OPC_RECONNECTIONS_TOTAL.labels.return_value.inc.assert_called_once()
|
|
|
|
|
|
@patch('ingestor.managers.opc_manager.metrics')
|
|
def test_init_metrics_calls_correct_metric_methods(metrics):
|
|
opc_manager = OpcManager(
|
|
name='TestInitConnector',
|
|
url='opc.tcp://init.test:4840',
|
|
data_manager=MagicMock(),
|
|
subscription_period_ms=1000,
|
|
logger=MagicMock(),
|
|
server_uri='opc.tcp://init.test:4840/uri',
|
|
notification_handler=MagicMock(),
|
|
metadata=metadata['metadata'],
|
|
)
|
|
|
|
metrics.OPC_CONNECTION_STATUS.labels.assert_called_with(
|
|
pod_id=opc_manager.pod_id,
|
|
server_name=opc_manager.name,
|
|
server_url=opc_manager.url,
|
|
)
|
|
|
|
metrics.OPC_CONNECTION_STATUS.labels.return_value.set.assert_called_once_with(0)
|
|
|
|
metrics.OPC_TAGS_SUBSCRIBED.labels.assert_called_once_with(
|
|
pod_id=opc_manager.pod_id, server_name=opc_manager.name
|
|
)
|
|
|
|
metrics.OPC_TAGS_SUBSCRIBED.labels.return_value.set.assert_called_once_with(0)
|