90 lines
2.3 KiB
TypeScript
90 lines
2.3 KiB
TypeScript
import { Stitcher } from '../src/stitcher.js';
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import { describe, expect, it, vi, beforeEach } from 'vitest';
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import { EventEmitter } from 'events';
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import { spawn } from 'child_process';
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const mockChildProcess = new (class MockChildProcess
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extends EventEmitter {
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kill = vi.fn(() => {
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return true;
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});
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})();
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vi.mock('child_process', () => {
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return {
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spawn: vi.fn(() => mockChildProcess)
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}
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});
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describe('stitcher', () => {
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beforeEach(() => {
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vi.clearAllMocks();
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});
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it('passes the correct arguments to ffmpeg', async () => {
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const p = Stitcher(['1.flac', 'dir/2.flac']);
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mockChildProcess.emit('exit', 0, null);
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await p;
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expect(spawn).toBeCalledWith('ffmpeg', [
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"-i",
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'1.flac',
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'-i',
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'dir/2.flac',
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'-filter_complex',
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'[0:a][1:a][2:a]concat=n=2:v=0:a=1[out]',
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'-map',
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'[out]',
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'-ar',
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'44100',
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'-ac',
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'2',
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'-c:a',
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'pcm_s16le',
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'output.wav',
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'-y'
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]);
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});
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it('throws an error when ffmpeg fails', async () => {
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const p = Stitcher(['sound.mp3']);
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mockChildProcess.emit('exit', 1, null);
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await expect(p).rejects.toThrow('exited with 1');
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expect(spawn).toBeCalledWith('ffmpeg', [
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"-i",
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'sound.mp3',
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'-filter_complex',
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'[0:a][1:a][2:a]concat=n=1:v=0:a=1[out]',
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'-map',
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'[out]',
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'-ar',
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'44100',
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'-ac',
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'2',
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'-c:a',
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'pcm_s16le',
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'output.wav',
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'-y'
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]);
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});
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it('throws an error when ffmpeg takes longer than expected', { timeout: 6000 }, async () => {
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await expect(Stitcher(['in.wav'])).rejects.toThrow('timed out');
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expect(spawn).toBeCalledWith('ffmpeg', [
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"-i",
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'in.wav',
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'-filter_complex',
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'[0:a][1:a][2:a]concat=n=1:v=0:a=1[out]',
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'-map',
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'[out]',
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'-ar',
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'44100',
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'-ac',
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'2',
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'-c:a',
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'pcm_s16le',
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'output.wav',
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'-y'
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]);
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});
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}); |