test: answer model

api/packages/game_domain/test/src/models/answer_test.dart

@@ -0,0 +1,51 @@
+// ignore_for_file: prefer_const_constructors
+
+import 'package:game_domain/game_domain.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Answer', () {
+    test('creates correct json object from Answer object', () {
+      final answer = Answer(id: 'id', answer: 'answer', section: Point(1, 2));
+      final json = answer.toJson();
+
+      expect(
+        json,
+        equals({
+          'id': 'id',
+          'answer': 'answer',
+          'section': {'x': 1, 'y': 2},
+        }),
+      );
+    });
+
+    test('creates correct Answer object from json object', () {
+      final json = {
+        'id': 'id',
+        'answer': 'answer',
+        'section': {'x': 1, 'y': 2},
+      };
+      final answer = Answer.fromJson(json);
+      expect(
+        answer,
+        equals(
+          Answer(id: 'id', answer: 'answer', section: Point(1, 2)),
+        ),
+      );
+    });
+
+    test('supports equality', () {
+      final firstAnswer = Answer(
+        id: 'id',
+        answer: 'answer',
+        section: Point(1, 2),
+      );
+      final secondAnswer = Answer(
+        id: 'id',
+        answer: 'answer',
+        section: Point(1, 2),
+      );
+      expect(firstAnswer, equals(secondAnswer));
+    });
+  });
+}