test_unique_index_update.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() {

  let request = indexedDB.open(

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

);

  request.onerror = errorHandler;

  request.onupgradeneeded = grabEventAndContinueHandler;

  request.onsuccess = grabEventAndContinueHandler;

  let event = yield undefined;

  let db = event.target.result;

  for (let autoIncrement of [false, true]) {

    let objectStore = db.createObjectStore(autoIncrement, {

      keyPath: "id",

      autoIncrement,

});

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

    for (let i = 0; i < 10; i++) {

      objectStore.add({ id: i, index: i });

  event = yield undefined;

  is(event.type, "success", "expect a success event");

  for (let autoIncrement of [false, true]) {

    let objectStore = db

      .transaction(autoIncrement, "readwrite")

      .objectStore(autoIncrement);

    request = objectStore.put({ id: 5, index: 6 });

    request.onsuccess = unexpectedSuccessHandler;

    request.addEventListener("error", new ExpectError("ConstraintError", true));

    event = yield undefined;

    event.preventDefault();

    let keyRange = IDBKeyRange.only(5);

    objectStore.index("").openCursor(keyRange).onsuccess = function (event) {

      let cursor = event.target.result;

      ok(cursor, "Must have a cursor here");

      is(cursor.value.index, 5, "Still have the right index value");

      cursor.value.index = 6;

      request = cursor.update(cursor.value);

      request.onsuccess = unexpectedSuccessHandler;

      request.addEventListener(

        "error",

        new ExpectError("ConstraintError", true)

);

};

    yield undefined;

  finishTest();