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58 lines
1.8 KiB
58 lines
1.8 KiB
import 'dart:typed_data';
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import 'package:eaimar/data/services/wav_writer.dart';
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import 'package:flutter_test/flutter_test.dart';
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Uint8List _bytes(int n, int fill) => Uint8List.fromList(List.filled(n, fill));
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void main() {
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test('两路顺序到达：逐对取出，谁都不丢', () {
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final p = StereoPairer();
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p.pushLeft(_bytes(640, 1));
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expect(p.take(), isNull); // 只有一路时不出对
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p.pushRight(_bytes(640, 2));
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final pair = p.take()!;
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expect(pair.left.length, 640);
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expect(pair.right.length, 640);
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expect(pair.left.first, 1);
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expect(pair.right.first, 2);
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expect(p.take(), isNull);
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});
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test('对端连来两帧、本端才来一帧：第一帧不再被覆盖丢掉', () {
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final p = StereoPairer();
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p.pushRight(_bytes(640, 2));
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p.pushRight(_bytes(640, 3));
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p.pushLeft(_bytes(640, 1));
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final first = p.take()!;
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expect(first.right.first, 2); // 老实现这里会拿到 3（第一帧被覆盖）
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expect(p.take(), isNull);
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p.pushLeft(_bytes(640, 1));
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final second = p.take()!;
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expect(second.right.first, 3);
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});
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test('长度不等时按较短者对齐到整样本，余量留到下一次', () {
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final p = StereoPairer();
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p.pushLeft(_bytes(1000, 1));
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p.pushRight(_bytes(301, 2));
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final a = p.take()!;
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expect(a.left.length, 300);
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expect(a.right.length, 300);
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p.pushRight(_bytes(699, 2));
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final b = p.take()!;
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expect(b.left.length, 700);
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expect(b.right.length, 700);
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});
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test('一路长期缺席：另一路只保留最近 maxPending 字节', () {
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final p = StereoPairer(maxPending: 1000);
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for (var i = 0; i < 5; i++) {
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p.pushLeft(_bytes(640, i));
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}
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p.pushRight(_bytes(1000, 9));
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final pair = p.take()!;
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expect(pair.left.length, 1000);
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expect(pair.left.last, 4); // 留下的是最新的那一段
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});
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}
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