add ticker page bloc and avatar disk cache

2026-07-12 23:18:53 +02:00
parent 94794ff092
commit 9b5198c6db
18 changed files with 944 additions and 233 deletions
@@ -0,0 +1,51 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:marianum_mobile/widget/avatar_disk_cache.dart';
+
+void main() {
+  group('AvatarDiskCache.fileName', () {
+    test('user files carry the size, group files do not', () {
+      expect(
+        AvatarDiskCache.fileName(id: 'alice', isGroup: false, size: 256),
+        'u_616c696365_256',
+      );
+      expect(
+        AvatarDiskCache.fileName(id: 'alice', isGroup: false, size: 64),
+        'u_616c696365_64',
+      );
+      // Groups are served at one fixed size — the size argument is ignored.
+      expect(
+        AvatarDiskCache.fileName(id: 'room1', isGroup: true, size: 512),
+        AvatarDiskCache.fileName(id: 'room1', isGroup: true, size: 64),
+      );
+      expect(
+        AvatarDiskCache.fileName(id: 'room1', isGroup: true, size: 0),
+        startsWith('g_'),
+      );
+    });
+
+    test('names are file-safe even for exotic ids', () {
+      final name = AvatarDiskCache.fileName(
+        id: 'a/b c@d',
+        isGroup: false,
+        size: 128,
+      );
+      expect(name, matches(RegExp(r'^u_[0-9a-f]+_128$')));
+    });
+
+    test(
+      'a short id evict prefix never matches a longer id file (hex + _ '
+      'separator keeps the boundary unambiguous)',
+      () {
+        // Eviction deletes files starting with `u_<hex(id)>_`.
+        final shortPrefix =
+            'u_${AvatarDiskCache.fileName(id: 'a', isGroup: false, size: 1).split('_')[1]}_';
+        final longFile = AvatarDiskCache.fileName(
+          id: 'a_b',
+          isGroup: false,
+          size: 256,
+        );
+        expect(longFile.startsWith(shortPrefix), isFalse);
+      },
+    );
+  });
+}