3f6debc18b
Refs #5 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QKHeGuAYh4W1jNdjMConZa
72 lines
2.6 KiB
TypeScript
72 lines
2.6 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { buildMultipart, makeBoundary } from '../src/core/multipart';
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import { bytesIndexOf } from './fakes';
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const enc = new TextEncoder();
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function concat(...parts: Uint8Array[]): Uint8Array {
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const out = new Uint8Array(parts.reduce((n, p) => n + p.length, 0));
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let at = 0;
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for (const p of parts) {
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out.set(p, at);
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at += p.length;
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}
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return out;
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}
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describe('makeBoundary', () => {
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it('builds 24 hex chars from random()', () => {
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expect(makeBoundary(() => 0)).toBe(`----voice-note-${'0'.repeat(24)}`);
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expect(makeBoundary(() => 0.99)).toBe(`----voice-note-${'f'.repeat(24)}`);
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});
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it('clamps random() === 1 to f', () => {
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expect(makeBoundary(() => 1)).toBe(`----voice-note-${'f'.repeat(24)}`);
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});
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});
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describe('buildMultipart', () => {
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// Байты, которые сломались бы при прогоне через строку: 0x00, >0x7F, CRLF, "--".
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const audio = new Uint8Array([0x00, 0xff, 0x80, 0x0d, 0x0a, 0x2d, 0x2d]).buffer;
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const file = { name: 'file', filename: 'audio.m4a', contentType: 'audio/mp4', data: audio };
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it('builds exact bytes with the boundary from contentType', () => {
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const { body, contentType } = buildMultipart(
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[
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['model', 'm1'],
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['response_format', 'json'],
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],
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file,
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'BND',
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);
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expect(contentType).toBe('multipart/form-data; boundary=BND');
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const expected = concat(
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enc.encode(
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'--BND\r\nContent-Disposition: form-data; name="model"\r\n\r\nm1\r\n' +
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'--BND\r\nContent-Disposition: form-data; name="response_format"\r\n\r\njson\r\n' +
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'--BND\r\nContent-Disposition: form-data; name="file"; filename="audio.m4a"\r\nContent-Type: audio/mp4\r\n\r\n',
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),
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new Uint8Array(audio),
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enc.encode('\r\n--BND--\r\n'),
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);
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expect(new Uint8Array(body)).toEqual(expected);
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});
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it('keeps binary audio bytes unchanged', () => {
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const { body } = buildMultipart([], file, 'BND');
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expect(bytesIndexOf(new Uint8Array(body), new Uint8Array(audio))).toBeGreaterThan(0);
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});
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it('encodes non-ASCII field values as UTF-8', () => {
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const { body } = buildMultipart([['language', 'ру']], file, 'BND');
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expect(bytesIndexOf(new Uint8Array(body), enc.encode('\r\n\r\nру\r\n'))).toBeGreaterThan(0);
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});
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it('does not share memory with the input audio', () => {
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const data = new Uint8Array([1, 2, 3]);
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const { body } = buildMultipart([], { ...file, data: data.buffer }, 'BND');
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data[0] = 9;
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expect(bytesIndexOf(new Uint8Array(body), new Uint8Array([1, 2, 3]))).toBeGreaterThan(0);
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});
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});
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