@fastly/as-url/assembly/__tests__/invalid-url.spec.ts

// Copyright 2020 Fastly, Inc.

import { URL } from "../url";

describe("Invalid URLs that should throw an Error", () => {
  test("Empty hosts should not allow special schemes (excluding file)", () => {
    expect(() => {
      let url = new URL("https://");
    }).toThrow();

    // File should be valid
    let fileUrl = new URL("file://");
    expect(fileUrl).toBeTruthy();
  });

  test("Opaque hosts should not allow special schemes (except http and https)", () => {
    expect(() => {
      let url = new URL("ftp://hello");
    }).toThrow();

    expect(() => {
      let url = new URL("http://localhost");
    }).toBeTruthy();
  });

  // A URL-port string must be one of the following:
  // the empty string
  // one or more ASCII digits representing a decimal number no greater than 2^16 − 1.
  // https://url.spec.whatwg.org/#url-port-string
  test("Will throw on port edge cases", () => {
    expect(() => {
      let url = new URL("https://fastly.com:0");
    }).toThrow();

    expect(() => {
      let url = new URL("https://fastly.com:65536");
    }).toThrow();
  });
});