update tests to reflect opentelemetry error reporting

shim/opentelemetry-opentracing-shim/src/opentelemetry/shim/opentracing_shim/__init__.py

@@ -406,7 +406,8 @@ def close(self):
     def __exit__(self, exc_type, exc_val, exc_tb):
         """
         Override the __exit__ method of `opentracing.scope.Scope` so we can report
-        exceptions correctly in opentelemetry specification format. """
+        exceptions correctly in opentelemetry specification format.
+        """
         self._end_span_scope(exc_type, exc_val, exc_tb)
 
     def _end_span_scope(

shim/opentelemetry-opentracing-shim/tests/test_shim.py

@@ -477,10 +477,12 @@ def test_span_on_error(self):
         # Raise an exception while a span is active.
         with self.assertRaises(Exception):
             with self.shim.start_active_span("TestName") as scope:
-                raise Exception
+                raise Exception("bad thing")
 
         # Verify exception details have been added to span.
-        self.assertEqual(scope.span.unwrap().attributes["error"], True)
+        exc_event = scope.span.unwrap().events[0]
+        self.assertEqual(exc_event.name, "exception")
+        self.assertEqual(exc_event.attributes["exception.message"], "bad thing")
 
     def test_inject_http_headers(self):
         """Test `inject()` method for Format.HTTP_HEADERS."""