Add a test for aws lambda using NoOpTracerProvider (#1602)

* add a test for aws lambda using NoOpTracerProvider

* fix import

* add assert for spans

---------

Co-authored-by: Srikanth Chekuri <[email protected]>

Author: avzis

instrumentation/opentelemetry-instrumentation-aws-lambda/tests/test_aws_lambda_instrumentation_manual.py

@@ -38,7 +38,7 @@
 from opentelemetry.semconv.resource import ResourceAttributes
 from opentelemetry.semconv.trace import SpanAttributes
 from opentelemetry.test.test_base import TestBase
-from opentelemetry.trace import SpanKind
+from opentelemetry.trace import NoOpTracerProvider, SpanKind
 from opentelemetry.trace.propagation.tracecontext import (
     TraceContextTextMapPropagator,
 )
@@ -413,3 +413,12 @@ def test_uninstrument(self):
         mock_execute_lambda(MOCK_LAMBDA_API_GATEWAY_HTTP_API_EVENT)
         spans = self.memory_exporter.get_finished_spans()
         self.assertEqual(len(spans), 0)
+
+    def test_no_op_tracer_provider(self):
+        tracer_provider = NoOpTracerProvider()
+        AwsLambdaInstrumentor().instrument(tracer_provider=tracer_provider)
+
+        mock_execute_lambda(MOCK_LAMBDA_API_GATEWAY_HTTP_API_EVENT)
+        spans = self.memory_exporter.get_finished_spans()
+        assert spans is not None
+        self.assertEqual(len(spans), 0)