httpx_issue_979 - Audit and test otel instrumentation for httpx

Signed-off-by: Peri, Suryanarayana <[email protected]>

Author: SuryanarayanaPeri

instrumentation/opentelemetry-instrumentation-httpx/tests/test_httpx_integration.py

@@ -56,6 +56,7 @@
 from opentelemetry.test.mock_textmap import MockTextMapPropagator
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.trace import StatusCode
+from opentelemetry import trace as trace_api
 
 if typing.TYPE_CHECKING:
     from opentelemetry.instrumentation.httpx import (
@@ -1214,3 +1215,14 @@ def test_basic_multiple(self):
         self.perform_request(self.URL, client=self.client)
         self.perform_request(self.URL, client=self.client2)
         self.assert_span(num_spans=2)
+
+    def test_no_op_tracer_provider(self):
+        HTTPXClientInstrumentor().uninstrument()
+        HTTPXClientInstrumentor().instrument(
+            tracer_provider=trace_api.NoOpTracerProvider()
+        )
+         async with httpx.AsyncClient() as client:
+            await client.get('http://test.com')
+ 
+        spans = self.memory_exporter.get_finished_spans()
+        self.assertEqual(len(spans), 0)