fixup! feat!: improve deserialization logic

Author: JKRhb

lib/src/core/definitions/extensions/json_parser.dart

@@ -205,6 +205,19 @@ extension ParseField on Map<String, dynamic> {
     throw FormatException("$T");
   }
 
+  List<T> parseRequiredArrayField<T>(
+    String name, [
+    Set<String>? parsedFields,
+  ]) {
+    final result = parseArrayField<T>(name, parsedFields);
+
+    if (result == null) {
+      throw FormatException("Missing required field $name");
+    }
+
+    return result;
+  }
+
   /// Parses a field with a given [name] as a [DataSchema].
   ///
   /// Returns `null` if the field should not be present or if it is not a JSON

lib/src/core/definitions/thing_description.dart

@@ -7,7 +7,6 @@
 import "package:curie/curie.dart";
 import "package:meta/meta.dart";
 
-import "../exceptions.dart";
 import "additional_expected_response.dart";
 import "context.dart";
 import "data_schema.dart";
@@ -86,7 +85,7 @@ class ThingDescription {
     final id = json.parseField<String>("id", parsedFields);
 
     final security =
-        json.parseArrayField<String>("security", parsedFields) ?? [];
+        json.parseRequiredArrayField<String>("security", parsedFields);
 
     final securityDefinitions =
         json.parseSecurityDefinitions(prefixMapping, parsedFields) ?? {};

test/core/thing_description_test.dart

@@ -52,7 +52,7 @@ void main() {
 
       expect(
         () => ThingDescription.fromJson(thingDescriptionJson),
-        throwsA(isA<ValidationException>()),
+        throwsA(isA<FormatException>()),
       );
     });