test_cursor_cycle.js

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/**

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/

*/

/* exported testGenerator */

var testGenerator = testSteps();

function* testSteps() {

  const Bob = { ss: "237-23-7732", name: "Bob" };

  let request = indexedDB.open(

    this.window ? window.location.pathname : "Splendid Test",

);

  request.onerror = errorHandler;

  request.onupgradeneeded = grabEventAndContinueHandler;

  let event = yield undefined;

  let db = event.target.result;

  event.target.onsuccess = continueToNextStep;

  let objectStore = db.createObjectStore("foo", { keyPath: "ss" });

  objectStore.createIndex("name", "name", { unique: true });

  objectStore.add(Bob);

  yield undefined;

db

    .transaction("foo", "readwrite")

    .objectStore("foo")

    .index("name")

    .openCursor().onsuccess = function (event) {

    event.target.transaction.oncomplete = continueToNextStep;

    let cursor = event.target.result;

    if (cursor) {

      let objectStore = event.target.transaction.objectStore("foo");

      objectStore.delete(Bob.ss).onsuccess = function () {

        cursor.continue();

};

};

  yield undefined;

  finishTest();

  objectStore = null; // Bug 943409 workaround.

  yield undefined;