fix the instantiation of NoOpTracerProvider (#1577)

Author: avzis

instrumentation/opentelemetry-instrumentation-redis/tests/test_redis.py

@@ -150,7 +150,7 @@ def request_hook(span, conn, args, kwargs):
 
     def test_no_op_tracer_provider(self):
         RedisInstrumentor().uninstrument()
-        tracer_provider = trace.NoOpTracerProvider
+        tracer_provider = trace.NoOpTracerProvider()
         RedisInstrumentor().instrument(tracer_provider=tracer_provider)
 
         redis_client = redis.Redis()

instrumentation/opentelemetry-instrumentation-sqlalchemy/tests/test_sqlalchemy.py

@@ -258,7 +258,7 @@ def test_no_op_tracer_provider(self):
         engine = create_engine("sqlite:///:memory:")
         SQLAlchemyInstrumentor().instrument(
             engine=engine,
-            tracer_provider=trace.NoOpTracerProvider,
+            tracer_provider=trace.NoOpTracerProvider(),
         )
         cnx = engine.connect()
         cnx.execute("SELECT 1 + 1;").fetchall()

instrumentation/opentelemetry-instrumentation-urllib/tests/test_urllib_integration.py

@@ -351,7 +351,7 @@ def response_hook(span, request_obj, response):
 
     def test_no_op_tracer_provider(self):
         URLLibInstrumentor().uninstrument()
-        tracer_provider = trace.NoOpTracerProvider
+        tracer_provider = trace.NoOpTracerProvider()
         URLLibInstrumentor().instrument(tracer_provider=tracer_provider)
 
         result = self.perform_request(self.URL)