Function createMockMultipartRequest

api/src/ai/files/controllers/upload.test.ts:12–55

(
	fields: Record<string, string>,
	file?: { name: string; data: Buffer; type: string },
)

}));

function createMockMultipartRequest(
	fields: Record<string, string>,
	file?: { name: string; data: Buffer; type: string },
) {
	const boundary = '----WebKitFormBoundary7MA4YWxkTrZu0gW';
	const parts: string[] = [];

	for (const [key, value] of Object.entries(fields)) {
		parts.push(`--${boundary}\r\nContent-Disposition: form-data; name="${key}"\r\n\r\n${value}`);
	}

	if (file) {
		parts.push(
			`--${boundary}\r\nContent-Disposition: form-data; name="file"; filename="${file.name}"\r\nContent-Type: ${file.type}\r\n\r\n`,
		);
	}

	const bodyStart = parts.join('\r\n') + '\r\n';
	const bodyEnd = `\r\n--${boundary}--\r\n`;

	const chunks: Buffer[] = [Buffer.from(bodyStart)];

	if (file) {
		chunks.push(file.data);
	}

	chunks.push(Buffer.from(bodyEnd));
	const body = Buffer.concat(chunks);

	const stream = new Readable({
		read() {
			this.push(body);
			this.push(null);
		},
	});

	return {
		stream,
		headers: {
			'content-type': `multipart/form-data; boundary=${boundary}`,
			'content-length': String(body.length),
		},
	};
}

describe('aiFileUploadHandler', () => {
	let mockReq: Partial<Request>;