Audit and test opentelemetry-instrumentation-django NoOpTracerProvider (#1611)

Author: Akochavi

instrumentation/opentelemetry-instrumentation-django/tests/test_middleware_asgi.py

@@ -23,6 +23,7 @@
 from django.test import SimpleTestCase
 from django.test.utils import setup_test_environment, teardown_test_environment
 
+from opentelemetry import trace as trace_api
 from opentelemetry.instrumentation.django import (
     DjangoInstrumentor,
     _DjangoMiddleware,
@@ -424,6 +425,16 @@ async def test_tracer_provider_traced(self):
             span.resource.attributes["resource-key"], "resource-value"
         )
 
+    async def test_no_op_tracer_provider(self):
+        _django_instrumentor.uninstrument()
+        _django_instrumentor.instrument(
+            tracer_provider=trace_api.NoOpTracerProvider()
+        )
+
+        await self.async_client.post("/traced/")
+        spans = self.exporter.get_finished_spans()
+        self.assertEqual(len(spans), 0)
+
 
 @patch.dict(
     "os.environ",