test: integration: dev: Check model_predict result

Signed-off-by: John Andersen <[email protected]>

Author: pdxjohnny

tests/integration/test_service_dev.py

@@ -86,3 +86,10 @@ async def test_run(self):
             "-config-msg",
             "some message",
         )
+        self.assertIn("model_predictions", results)
+        results = results["model_predictions"]
+        self.assertIn("Salary", results)
+        results = results["Salary"]
+        self.assertIn("value", results)
+        results = results["value"]
+        self.assertEqual(results, 90.0)