gecko-dev/dom/indexedDB/test/unit/test_storagePersistentUpgrade.js

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

var testGenerator = testSteps();

function* testSteps() {
  const openParams = [
    // This one lives in storage/default/http+++www.mozilla.org
    { url: "http://www.mozilla.org", dbName: "dbB", dbVersion: 1 },
  ];

  clearAllDatabases(continueToNextStepSync);
  yield undefined;

  installPackagedProfile("storagePersistentUpgrade_profile");

  for (let params of openParams) {
    let request = indexedDB.openForPrincipal(
      getPrincipal(params.url),
      params.dbName,
      params.dbVersion
    );
    request.onerror = errorHandler;
    request.onupgradeneeded = unexpectedSuccessHandler;
    request.onsuccess = grabEventAndContinueHandler;
    let event = yield undefined;

    is(event.type, "success", "Correct event type");
  }

  resetAllDatabases(continueToNextStepSync);
  yield undefined;

  for (let params of openParams) {
    let request = indexedDB.openForPrincipal(
      getPrincipal(params.url),
      params.dbName,
      params.dbVersion
    );
    request.onerror = errorHandler;
    request.onupgradeneeded = unexpectedSuccessHandler;
    request.onsuccess = grabEventAndContinueHandler;
    let event = yield undefined;

    is(event.type, "success", "Correct event type");
  }

  finishTest();
  yield undefined;
}