detect-flash-test.js

import test from 'tape';
import df, { detectFlash } from './detect-flash';

const TIMEOUT = 1000;
const ID = '__flash_detector';
const CALLBACK = `${ID}_call`;

const dummyFlash = {};

function makeFlashFound(timeout = TIMEOUT) {
  setTimeout(() => {
    window[CALLBACK]();
  }, timeout / 2);
}

test('export', (t) => {
  t.plan(1);

  t.equal(df, detectFlash, 'should export detectFlash as default');
});

test('detectFlash in case flash is not installed', (t) => {
  t.plan(1);

  detectFlash('dummy-path')
    .catch(() => t.pass('No flash sould be found when flash is not installed.'));
});

test('detectFlash in case flash is installed but blocked', (t) => {
  t.plan(1);

  navigator.plugins['Shockwave Flash'] = dummyFlash;
  detectFlash('dummy-path')
    .catch(() => t.pass('No flash sould be found when flash is installed but blocked.'));
});

test('detectFlash in case flash is alive', (t) => {
  t.plan(1);

  detectFlash('dummy-path')
    .then(() => t.pass('Flash should be found when flash is alive.'));

  makeFlashFound();
});

test('detectFlash in case flash is alive, but it takes a longer time to detect it', (t) => {
  t.plan(1);

  const to = TIMEOUT * 5;
  detectFlash('dummy-path', to)
    .then(() => t.pass('Flash should be found when flash is alive.'));

  makeFlashFound(to / 2);
});