From 6ab7c3b2e411588cbbb2e1b219498c600852082b Mon Sep 17 00:00:00 2001
From: "Spillane, Michael" <michael.spillane@fmr.com>
Date: Wed, 15 May 2024 17:06:15 +0100
Subject: [PATCH] Add NoOpTracerProvider test for starlette

---
 .../tests/test_starlette_instrumentation.py       | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/instrumentation/opentelemetry-instrumentation-starlette/tests/test_starlette_instrumentation.py b/instrumentation/opentelemetry-instrumentation-starlette/tests/test_starlette_instrumentation.py
index 1e768982b5..a98c77c829 100644
--- a/instrumentation/opentelemetry-instrumentation-starlette/tests/test_starlette_instrumentation.py
+++ b/instrumentation/opentelemetry-instrumentation-starlette/tests/test_starlette_instrumentation.py
@@ -354,6 +354,21 @@ def test_uninstrument(self):
         spans = self.memory_exporter.get_finished_spans()
         self.assertEqual(len(spans), 0)
 
+    def test_no_op_tracer_provider(self):
+        self._client.get("/foobar")
+        spans = self.memory_exporter.get_finished_spans()
+        self.assertEqual(len(spans), 3)
+
+        self.memory_exporter.clear()
+        self._instrumentor.uninstrument()
+
+        tracer_provider = NoOpTracerProvider()
+        self._instrumentor.instrument(tracer_provider=tracer_provider)
+
+        self._client.get("/foobar")
+        spans = self.memory_exporter.get_finished_spans()
+        self.assertEqual(len(spans), 0)
+
 
 class TestAutoInstrumentationHooks(TestStarletteManualInstrumentationHooks):
     """