Function test

test/unit/test-impression.js:465–469

* Tests trust determination by referrer. * @param {string} referrer URL under test. * @param {boolean} toBeTrusted The expected outcome.

(referrer, toBeTrusted)

     * @param {boolean} toBeTrusted The expected outcome.
     */
    function test(referrer, toBeTrusted) {
      it('testing ' + referrer, () => {
        expect(isTrustedReferrer(referrer)).to.equal(toBeTrusted);
      });
    }

    it('should return true for allowlisted hosts', () => {
      test('https://t.co/docref', true);