fixed the long existing bug of null fields overrriding the fields in Map of notifyOptions

2022-03-26 10:47:43 +06:00
parent 2c9960a8c3
commit 06e15c3096
6 changed files with 157 additions and 48 deletions
@@ -0,0 +1,68 @@
+import 'package:fl_query/src/core/core.dart';
+import 'package:test/test.dart';
+
+import '../../helpers/utils.dart';
+
+void main() {
+  group('QueryObserver', () {
+    late QueryClient queryClient;
+
+    setUp(() {
+      queryClient = QueryClient();
+      queryClient.mount();
+    });
+
+    tearDown(() {
+      queryClient.clear();
+    });
+
+    test('should trigger a fetch when subscribed', () async {
+      final key = queryKey();
+      int calls = 0;
+      queryFn(context) {
+        calls++;
+        return {"data": "data1"};
+      }
+
+      final observer = QueryObserver(
+        queryClient,
+        QueryObserverOptions(queryKey: key, queryFn: queryFn),
+      );
+      final unsubscribe = observer.subscribe();
+      await Future.delayed(Duration(milliseconds: 1));
+      unsubscribe();
+      expect(calls, 1);
+    });
+
+    test('should notify when switching query', () async {
+      final key1 = queryKey();
+      final key2 = queryKey();
+      final List<QueryObserverResult> results = [];
+      final observer = QueryObserver(
+        queryClient,
+        QueryObserverOptions(
+          queryKey: key1,
+          queryFn: (_) => {"data": 1},
+        ),
+      );
+      final unsubscribe = observer.subscribe((result) {
+        results.add(result);
+      });
+      await Future.delayed(Duration(milliseconds: 1));
+      observer.setOptions(
+        QueryObserverOptions(queryKey: key2, queryFn: (_) => {"data": 2}),
+      );
+      await Future.delayed(Duration(milliseconds: 2));
+      unsubscribe();
+      expect(results.length, 4);
+      expect(results[0].data, isNull);
+      expect(results[0].status, QueryStatus.loading);
+      expect(results[1].data, {"data": 1});
+      expect(results[1].status, QueryStatus.success);
+      expect(results[2].data, isNull);
+      expect(results[2].status, QueryStatus.loading);
+      expect(results[3].data, {"data": 2});
+      expect(results[3].status, QueryStatus.success);
+    });
+  });
+}