Heygen TTS Test

1import { test } from "node:test";
2import assert from "node:assert/strict";
3import { spawnSync } from "node:child_process";
4import { mkdtempSync } from "node:fs";
5import { tmpdir } from "node:os";
6import { join } from "node:path";
7import { fileURLToPath } from "node:url";
8
9const script = fileURLToPath(new URL("./heygen-tts.mjs", import.meta.url));
10// Every fetch answers as HeyGen does for a voice that no longer exists.
11const refusing = `data:text/javascript,globalThis.fetch = async () => new Response(${JSON.stringify(
12  JSON.stringify({ error: { code: "voice_not_found", message: "Voice not found: vc_gone" } }),
13)}, { status: 404, headers: { "content-type": "application/json" } });`;
14
15test("a refused speech prints HeyGen's own message, so a caller can act on it", () => {
16  const dir = mkdtempSync(join(tmpdir(), "heygen-tts-"));
17  const run = spawnSync(
18    process.execPath,
19    ["--import", refusing, script, "Hello", "--voice", "vc_gone", "-o", join(dir, "out.mp3")],
20    {
21      cwd: dir,
22      encoding: "utf8",
23      env: {
24        ...process.env,
25        HEYGEN_API_KEY: "",
26        HYPERFRAMES_API_KEY: "",
27        HEYGEN_ACCESS_TOKEN: "t",
28      },
29    },
30  );
31  assert.equal(run.status, 1);
32  assert.match(run.stderr, /✗ heygen-tts: Voice not found: vc_gone\n/);
33  assert.doesNotMatch(
34    run.stderr,
35    /HTTP 404|"error"/,
36    "HeyGen's message alone, not the raw response",
37  );
38});