/**
 * Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/
 */

// testSteps is expected to be defined by the file including this file.
/* global testSteps */

var testGenerator = testSteps();

var testResult;

function runTest() {
  testGenerator.next();
}

function finishTestNow() {
  if (testGenerator) {
    testGenerator.return();
    testGenerator = undefined;
  }
}

function finishTest() {
  setTimeout(finishTestNow, 0);
  setTimeout(() => {
    window.parent.postMessage(testResult, "*");
  }, 0);
}

function grabEventAndContinueHandler(event) {
  testGenerator.next(event);
}

function errorHandler(event) {
  throw new Error("indexedDB error, code " + event.target.error.name);
}

function continueToNextStep() {
  SimpleTest.executeSoon(function () {
    testGenerator.next();
  });
}