[verified] Publish ReelBox source under GPLv3

test/segmented_classification_test.dart

@@ -0,0 +1,67 @@
+import 'dart:convert';
+
+import 'package:background_downloader/background_downloader.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:reelbox/data/models.dart';
+import 'package:reelbox/media/download_service.dart';
+import 'package:reelbox/media/media_helpers.dart';
+import 'package:reelbox/media/media_platform.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  final calls = <MethodCall>[];
+  setUp(() {
+    debugDefaultTargetPlatformOverride = TargetPlatform.android;
+    calls.clear();
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(MediaPlatform.channel, (call) async {
+      calls.add(call);
+      return true;
+    });
+  });
+  tearDown(() {
+    debugDefaultTargetPlatformOverride = null;
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(MediaPlatform.channel, null);
+  });
+
+  for (final type in [
+    'mpd', ' MPD ', 'hls', ' HLS ', 'm3u8', 'M3U8', 'dash', ' DASH ',
+    'application/dash+xml', 'application/vnd.apple.mpegurl',
+    'application/x-mpegURL; charset=UTF-8',
+  ]) {
+    test('extensionless $type is not a direct-file or external-downloader source', () async {
+      final source = MediaSource(url: 'https://example.test/manifest?id=7', type: type);
+      expect(isSegmentedMediaSource(source), isTrue);
+      final entry = DownloadEntry.fromTask(DownloadTask(
+        taskId: 'manifest', url: source.url, filename: 'legacy.mp4',
+        metaData: jsonEncode({'titleId': 7, 'title': 'Fixture', 'sourceType': type}),
+      ), taskStatus: TaskStatus.failed);
+      await expectLater(DownloadService.instance.externalDownloader(entry),
+          throwsA(isA<UnsupportedError>().having((e) => e.message, 'message', contains('package'))));
+      expect(calls, isEmpty);
+      expect(downloadUnsupportedReason(source), isNotNull);
+    });
+  }
+
+  test('manifest URL extensions override direct type hints', () {
+    for (final extension in ['M3U8', 'MPD']) {
+      expect(downloadUnsupportedReason(MediaSource(
+        url: 'https://example.test/video.$extension?name=movie.mp4', type: 'mp4',
+      )), isNotNull);
+    }
+  });
+
+  test('direct MP4 remains eligible for direct and external download', () async {
+    const source = MediaSource(url: 'https://example.test/video.mp4', type: 'mp4');
+    expect(downloadUnsupportedReason(source), isNull);
+    final entry = DownloadEntry.fromTask(DownloadTask(
+      taskId: 'direct', url: source.url, filename: 'video.mp4',
+      metaData: jsonEncode({'titleId': 7, 'title': 'Fixture', 'sourceType': 'mp4'}),
+    ));
+    await DownloadService.instance.externalDownloader(entry);
+    expect(calls.map((call) => call.method), ['openDownloader']);
+  });
+}