add service layer OTel Span (#28582)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/unit_tests/extensions/otel/conftest.py

@@ -0,0 +1,96 @@
+"""
+Shared fixtures for OTel tests.
+
+Provides:
+- Mock TracerProvider with MemorySpanExporter
+- Mock configurations
+- Test data factories
+"""
+
+from unittest.mock import MagicMock, create_autospec
+
+import pytest
+from opentelemetry.sdk.trace import TracerProvider
+from opentelemetry.sdk.trace.export import SimpleSpanProcessor
+from opentelemetry.sdk.trace.export.in_memory_span_exporter import InMemorySpanExporter
+from opentelemetry.trace import set_tracer_provider
+
+
+@pytest.fixture
+def memory_span_exporter():
+    """Provide an in-memory span exporter for testing."""
+    return InMemorySpanExporter()
+
+
+@pytest.fixture
+def tracer_provider_with_memory_exporter(memory_span_exporter):
+    """Provide a TracerProvider configured with memory exporter."""
+    import opentelemetry.trace as trace_api
+
+    trace_api._TRACER_PROVIDER = None
+    trace_api._TRACER_PROVIDER_SET_ONCE._done = False
+
+    provider = TracerProvider()
+    processor = SimpleSpanProcessor(memory_span_exporter)
+    provider.add_span_processor(processor)
+    set_tracer_provider(provider)
+
+    yield provider
+
+    provider.force_flush()
+
+
+@pytest.fixture
+def mock_app_model():
+    """Create a mock App model."""
+    app = MagicMock()
+    app.id = "test-app-id"
+    app.tenant_id = "test-tenant-id"
+    return app
+
+
+@pytest.fixture
+def mock_account_user():
+    """Create a mock Account user."""
+    from models.model import Account
+
+    user = create_autospec(Account, instance=True)
+    user.id = "test-user-id"
+    return user
+
+
+@pytest.fixture
+def mock_end_user():
+    """Create a mock EndUser."""
+    from models.model import EndUser
+
+    user = create_autospec(EndUser, instance=True)
+    user.id = "test-end-user-id"
+    return user
+
+
+@pytest.fixture
+def mock_workflow_runner():
+    """Create a mock WorkflowAppRunner."""
+    runner = MagicMock()
+    runner.application_generate_entity = MagicMock()
+    runner.application_generate_entity.user_id = "test-user-id"
+    runner.application_generate_entity.stream = True
+    runner.application_generate_entity.app_config = MagicMock()
+    runner.application_generate_entity.app_config.app_id = "test-app-id"
+    runner.application_generate_entity.app_config.tenant_id = "test-tenant-id"
+    runner.application_generate_entity.app_config.workflow_id = "test-workflow-id"
+    return runner
+
+
+@pytest.fixture(autouse=True)
+def reset_handler_instances():
+    """Reset handler singleton instances before each test."""
+    from extensions.otel.decorators.base import _HANDLER_INSTANCES
+
+    _HANDLER_INSTANCES.clear()
+    from extensions.otel.decorators.handler import SpanHandler
+
+    _HANDLER_INSTANCES[SpanHandler] = SpanHandler()
+    yield
+    _HANDLER_INSTANCES.clear()