[verified] Publish ReelBox source under GPLv3

test/catalog_identity_test.dart

@@ -0,0 +1,98 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:reelbox/data/models.dart';
+import 'package:reelbox/ui/catalog.dart';
+
+import 'catalog_widget_test.dart' show CatalogApi, mountCatalog;
+
+class CollisionApi extends CatalogApi {
+  int channelCalls = 0;
+  int posterCalls = 0;
+
+  @override
+  Future<TitleRecord> channel(int id) async {
+    channelCalls++;
+    return TitleRecord(id: id, title: 'Channel fixture', type: 'channel');
+  }
+
+  @override
+  Future<TitleRecord> poster(int id) {
+    posterCalls++;
+    return super.poster(id);
+  }
+}
+
+void main() {
+  testWidgets(
+    'legacy channel detail is blocked without changing a same-ID saved movie',
+    (tester) async {
+      final api = CollisionApi();
+      final state = await mountCatalog(
+        tester,
+        api,
+        const TitlePage(
+          title: TitleRecord(id: 7, title: 'Channel fixture', type: 'channel'),
+        ),
+      );
+      addTearDown(state.dispose);
+      const movie = TitleRecord(id: 7, title: 'Movie fixture');
+      await state.toggleSaved(movie);
+      await tester.pumpAndSettle();
+      expect(find.text('This title is unavailable.'), findsOneWidget);
+      expect(find.text('Add to watchlist'), findsNothing);
+      expect(find.text('In watchlist'), findsNothing);
+      expect(api.channelCalls, 0);
+      expect(api.posterCalls, 0);
+      expect(state.saved.single.toJson(), movie.toJson());
+      expect(state.hasSaved(7), isTrue);
+      expect(state.hasSaved(7, kind: 'channel'), isFalse);
+      expect(find.text('Try again'), findsOneWidget);
+      await tester.pumpWidget(const SizedBox());
+    },
+  );
+
+  for (final series in [false, true]) {
+    testWidgets(
+      '${series ? 'series' : 'movie'} detail keeps allowed watchlist identity after a blocked channel mutation',
+      (tester) async {
+        final api = CollisionApi()..series = series;
+        final state = await mountCatalog(
+          tester,
+          api,
+          TitlePage(
+            title: TitleRecord(
+              id: 7,
+              title: 'Allowed fixture',
+              type: series ? 'serie' : 'movie',
+            ),
+          ),
+        );
+        addTearDown(state.dispose);
+        await state.toggleSaved(
+          const TitleRecord(id: 7, title: 'Channel fixture', type: 'channel'),
+        );
+        await tester.pumpAndSettle();
+        expect(state.saved, isEmpty);
+        expect(find.text('Add to watchlist'), findsOneWidget);
+        await tester.ensureVisible(find.text('Add to watchlist'));
+        await tester.pumpAndSettle();
+        await tester.tap(find.text('Add to watchlist'));
+        await tester.pumpAndSettle();
+        expect(state.saved.single.id, 7);
+        expect(state.saved.single.isSeries, series);
+        expect(state.hasSaved(7), isTrue);
+        expect(state.hasSaved(7, kind: 'channel'), isFalse);
+        expect(find.text('In watchlist'), findsOneWidget);
+        await tester.ensureVisible(find.text('In watchlist'));
+        await tester.pumpAndSettle();
+        await tester.tap(find.text('In watchlist'));
+        await tester.pumpAndSettle();
+        expect(state.saved, isEmpty);
+        expect(find.text('Add to watchlist'), findsOneWidget);
+        expect(api.posterCalls, 1);
+        expect(api.channelCalls, 0);
+        await tester.pumpWidget(const SizedBox());
+      },
+    );
+  }
+}