Add test

Author: DylanRussell

opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py

@@ -180,7 +180,7 @@ def __init__(
     # Added for backward compatibility. Not recommended to directly access/use underlying exporter.
     @property
     def span_exporter(self):
-        return self._batch_processor._exporter #pylint: disable=protected-access
+        return self._batch_processor._exporter  # pylint: disable=protected-access
 
     def on_start(
         self, span: Span, parent_context: Context | None = None

opentelemetry-sdk/tests/trace/export/test_export.py

@@ -150,6 +150,11 @@ def test_simple_span_processor_not_sampled(self):
 # before the end of the test, otherwise the worker thread will continue
 # to run after the end of the test.
 class TestBatchSpanProcessor(unittest.TestCase):
+    def test_get_span_exporter(self):
+        exporter = MySpanExporter(destination=[])
+        batch_span_processor = export.BatchSpanProcessor(exporter)
+        self.assertEqual(exporter, batch_span_processor.span_exporter)
+
     @mock.patch.dict(
         "os.environ",
         {