Quelle  voice-mapping.test.ts

import { describe, expect, it } from "vitest";
import {
  DEFAULT_POLLY_VOICE,
  escapeXml,
  getOpenAiVoiceNames,
  isOpenAiVoice,
  mapVoiceToPolly,
} from "./voice-mapping.js";

describe("voice mapping", () => {
  it("escapes xml-special characters", () => {
    expect(escapeXml(`5 < 6 & "quote" 'apostrophe' > 4`)).toBe(
      "5 < 6 & "quote" 'apostrophe' > 4",
    );
  });

  it("maps openai voices, passes through provider voices, and falls back to default", () => {
    expect(mapVoiceToPolly("alloy")).toBe("Polly.Joanna");
    expect(mapVoiceToPolly("ECHO")).toBe("Polly.Matthew");
    expect(mapVoiceToPolly("Polly.Brian")).toBe("Polly.Brian");
    expect(mapVoiceToPolly("Google.en-US-Standard-C")).toBe("Google.en-US-Standard-C");
    expect(mapVoiceToPolly("unknown")).toBe(DEFAULT_POLLY_VOICE);
    expect(mapVoiceToPolly(undefined)).toBe(DEFAULT_POLLY_VOICE);
  });

  it("detects known openai voices and lists them", () => {
    expect(isOpenAiVoice("nova")).toBe(true);
    expect(isOpenAiVoice("NOVA")).toBe(true);
    expect(isOpenAiVoice("Polly.Joanna")).toBe(false);
    expect(getOpenAiVoiceNames()).toEqual(
      expect.arrayContaining(["alloy", "echo", "fable", "nova", "onyx", "shimmer"]),
    );
  });
});