Adding tests

Author: rodrigobr-msft

tests/observability/core/test_agent365.py

@@ -201,6 +201,42 @@ def test_configure_uses_existing_tracer_provider(self, mock_get_provider, mock_i
                 self.assertIn("_EnrichingBatchSpanProcessor", processor_types)
                 self.assertIn("SpanProcessor", processor_types)
 
+class TestOTLPExporterConfiguration(unittest.TestCase):
+    """Test suite for OTLP exporter configuration based on environment variables."""
+
+    @patch("microsoft_agents_a365.observability.core.config.OTLPSpanExporter")
+    @patch("microsoft_agents_a365.observability.core.config.is_agent365_exporter_enabled", return_value=False)
+    @patch("microsoft_agents_a365.observability.core.config.TelemetryManager._instance", None)
+    @patch.dict("os.environ", {"OTEL_EXPORTER_OTLP_ENDPOINT": "http://localhost:4318"}, clear=True)
+    def test_otlp_exporter_initialized_when_env_var_set(
+        self, mock_is_enabled, mock_otlp_exporter
+    ):
+        """Test that OTLPSpanExporter is initialized when OTEL_EXPORTER_OTLP_ENDPOINT is set."""
+
+        result = configure(
+            service_name="test-service",
+            service_namespace="test-namespace",
+        )
+
+        self.assertTrue(result, "configure() should return True")
+        mock_otlp_exporter.assert_called_once()
+
+    @patch("microsoft_agents_a365.observability.core.config.OTLPSpanExporter")
+    @patch("microsoft_agents_a365.observability.core.config.is_agent365_exporter_enabled", return_value=False)
+    @patch("microsoft_agents_a365.observability.core.config.TelemetryManager._instance", None)
+    @patch.dict("os.environ", {}, clear=True)
+    def test_otlp_exporter_not_initialized_when_env_var_not_set(
+        self, mock_is_enabled, mock_otlp_exporter
+    ):
+        """Test that OTLPSpanExporter is NOT initialized when OTEL_EXPORTER_OTLP_ENDPOINT is not set."""
+
+        result = configure(
+            service_name="test-service",
+            service_namespace="test-namespace",
+        )
+
+        self.assertTrue(result, "configure() should return True")
+        mock_otlp_exporter.assert_not_called()
 
 if __name__ == "__main__":
     unittest.main()