packages/tool-youtube-transcript/src/validate.test.ts


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import { describe, expect, it } from "vitest";
import { validateUrl } from "./validate.js";

describe("validateUrl", () => {
  it("accepts valid URL", () => {
    const result = validateUrl({ url: "https://www.youtube.com/watch?v=abc123" });
    expect(result).toBe("https://www.youtube.com/watch?v=abc123");
  });

  it("rejects missing url", () => {
    const result = validateUrl({ query: "no url here" });
    expect(typeof result).toBe("object");
    if (typeof result === "object") {
      expect(result.error).toContain("url");
    }
  });

  it("rejects empty url", () => {
    const empty = validateUrl({ url: "" });
    expect(typeof empty).toBe("object");
    if (typeof empty === "object") {
      expect(empty.error).toContain("url");
    }
    const whitespace = validateUrl({ url: "   " });
    expect(typeof whitespace).toBe("object");
  });

  it("rejects null/non-object args", () => {
    expect(typeof validateUrl(null)).toBe("object");
    expect(typeof validateUrl(undefined)).toBe("object");
    expect(typeof validateUrl("string")).toBe("object");
    expect(typeof validateUrl(42)).toBe("object");
    expect(typeof validateUrl(true)).toBe("object");
  });
});