fix for Audit and test opentelemetry-instrumentation-jinja2 #978 (#2799)

Author: ramshankarb

instrumentation/opentelemetry-instrumentation-jinja2/tests/test_jinja2.py

@@ -219,3 +219,14 @@ def test_uninstrumented(self):
         self.assertEqual(len(spans), 0)
 
         Jinja2Instrumentor().instrument()
+
+    def test_no_op_tracer_provider(self):
+        self.memory_exporter.clear()
+        Jinja2Instrumentor().uninstrument()
+        Jinja2Instrumentor().instrument(
+            tracer_provider=trace_api.NoOpTracerProvider()
+        )
+        template = jinja2.environment.Template("Hello {{name}}!")
+        self.assertEqual(template.render(name="Jinja"), "Hello Jinja!")
+        spans = self.memory_exporter.get_finished_spans()
+        self.assertEqual(len(spans), 0)