perf(images): size decoded covers from layout constraints

2026-09-20 00:32:15 +02:00 · 2026-09-06 02:33:42 +07:00
parent fdb4a0eaa5
commit 1d0bb56f9b
2 changed files with 73 additions and 2 deletions
@@ -0,0 +1,43 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:spotiflac_android/widgets/cached_cover_image.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  for (final explicit in [false, true]) {
+    testWidgets(
+      'grid decode follows constraints, explicit override=$explicit',
+      (tester) async {
+        await tester.pumpWidget(
+          MaterialApp(
+            home: MediaQuery(
+              data: const MediaQueryData(devicePixelRatio: 2),
+              child: Center(
+                child: SizedBox.square(
+                  dimension: 180,
+                  child: CachedCoverImage(
+                    imageUrl: 'https://example.invalid/cover.png',
+                    memCacheWidth: explicit ? 1200 : null,
+                    errorWidget: (_, _, _) => const SizedBox(),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        );
+        final image = tester.widget<CachedNetworkImage>(
+          find.byType(CachedNetworkImage),
+        );
+        expect(image.memCacheWidth, explicit ? 1200 : 360);
+        expect(image.memCacheHeight, isNull);
+        expect(image.maxWidthDiskCache, isNull);
+        expect(
+          tester.getSize(find.byType(CachedCoverImage)),
+          const Size(180, 180),
+        );
+        await tester.pumpWidget(const SizedBox());
+      },
+    );
+  }
+}