Adds NoOpTracerProvider test case for pymysql instrumentation (open-telemetry#2581)

Author: shwejanraj

instrumentation/opentelemetry-instrumentation-pymysql/tests/test_pymysql_integration.py

@@ -17,6 +17,7 @@
 import pymysql
 
 import opentelemetry.instrumentation.pymysql
+from opentelemetry import trace as trace_api
 from opentelemetry.instrumentation.pymysql import PyMySQLInstrumentor
 from opentelemetry.sdk import resources
 from opentelemetry.test.test_base import TestBase
@@ -78,6 +79,20 @@ def test_custom_tracer_provider(self, mock_connect):
 
  self.assertIs(span.resource, resource)
 
+ @mock.patch("pymysql.connect")
+ # pylint: disable=unused-argument
+ def test_no_op_tracer_provider(self, mock_connect):
+ PyMySQLInstrumentor().instrument(
+ tracer_provider=trace_api.NoOpTracerProvider()
+ )
+ cnx = pymysql.connect(database="test")
+ cursor = cnx.cursor()
+ query = "SELECT * FROM test"
+ cursor.execute(query)
+
+ spans_list = self.memory_exporter.get_finished_spans()
+ self.assertEqual(len(spans_list), 0)
+
  @mock.patch("pymysql.connect")
  # pylint: disable=unused-argument
  def test_instrument_connection(self, mock_connect):