Initial commit

2026-07-14 11:11:36 +08:00
commit 656499cf94
604 changed files with 119518 additions and 0 deletions
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+import 'package:flutter_test/flutter_test.dart';
+import 'package:smplayer/features/player/session/stall_detector.dart';
+
+void main() {
+  group('StallDetector', () {
+    test('有字节统计时下载继续便不判定停滞', () {
+      final detector = StallDetector(threshold: const Duration(seconds: 10));
+
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 5),
+          bytesDownloaded: 100,
+          isActivelyPlaying: true,
+          now: Duration.zero,
+        ),
+        isFalse,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 5),
+          bytesDownloaded: 200,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 12),
+        ),
+        isFalse,
+      );
+    });
+
+    test('无字节统计时缓冲终点继续前进便不判定停滞', () {
+      final detector = StallDetector(threshold: const Duration(seconds: 10));
+
+      detector.update(
+        position: const Duration(seconds: 5),
+        bufferedPosition: const Duration(seconds: 5),
+        bytesDownloaded: null,
+        isActivelyPlaying: true,
+        now: Duration.zero,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 8),
+          bytesDownloaded: null,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 12),
+        ),
+        isFalse,
+      );
+    });
+
+    test('累计字节首次变为可用时视为传输进展', () {
+      final detector = StallDetector(threshold: const Duration(seconds: 10));
+
+      detector.update(
+        position: const Duration(seconds: 5),
+        bufferedPosition: const Duration(seconds: 5),
+        bytesDownloaded: null,
+        isActivelyPlaying: true,
+        now: Duration.zero,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 5),
+          bytesDownloaded: 100,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 12),
+        ),
+        isFalse,
+      );
+    });
+
+    test('无字节统计且仍有明显缓冲余量时不重连', () {
+      final detector = StallDetector(threshold: const Duration(seconds: 10));
+
+      detector.update(
+        position: const Duration(seconds: 5),
+        bufferedPosition: const Duration(seconds: 20),
+        bytesDownloaded: null,
+        isActivelyPlaying: true,
+        now: Duration.zero,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 20),
+          bytesDownloaded: null,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 12),
+        ),
+        isFalse,
+      );
+    });
+
+    test('所有可用进展信号停止到阈值后只触发一次', () {
+      final detector = StallDetector(threshold: const Duration(seconds: 10));
+
+      detector.update(
+        position: const Duration(seconds: 5),
+        bufferedPosition: const Duration(seconds: 5),
+        bytesDownloaded: null,
+        isActivelyPlaying: true,
+        now: Duration.zero,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 5),
+          bytesDownloaded: null,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 10),
+        ),
+        isTrue,
+      );
+      expect(
+        detector.update(
+          position: const Duration(seconds: 5),
+          bufferedPosition: const Duration(seconds: 5),
+          bytesDownloaded: null,
+          isActivelyPlaying: true,
+          now: const Duration(seconds: 20),
+        ),
+        isFalse,
+      );
+    });
+  });
+}