jspg error refactoring checkpoint

src/tests/mod.rs

@@ -18,7 +18,6 @@ fn test_library_api() {
         "type": "drop",
         "errors": [{
             "code": "ENGINE_NOT_INITIALIZED",
-            "message": "JSPG extension has not been initialized via jspg_setup",
             "details": {}
         }]
     })
@@ -250,7 +249,9 @@ fn test_library_api() {
         "errors": [
             {
                 "code": "REQUIRED_FIELD_MISSING",
-                "message": "Missing name",
+                "values": {
+                    "field_name": "name"
+                },
                 "details": {
                     "path": "name",
                     "schema": "source_schema"
@@ -258,7 +259,9 @@ fn test_library_api() {
             },
             {
                 "code": "STRICT_PROPERTY_VIOLATION",
-                "message": "Unexpected property 'wrong'",
+                "values": {
+                    "property_name": "wrong"
+                },
                 "details": {
                     "path": "wrong",
                     "schema": "source_schema"