test_setVersion_exclusion.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 name = this.window ? window.location.pathname : "Splendid Test";

  let request = indexedDB.open(name, 1);

  request.onerror = errorHandler;

  request.onupgradeneeded = grabEventAndContinueHandler;

  request.onsuccess = unexpectedSuccessHandler;

  let request2 = indexedDB.open(name, 2);

  request2.onerror = errorHandler;

  request2.onupgradeneeded = unexpectedSuccessHandler;

  request2.onsuccess = unexpectedSuccessHandler;

  let event = yield undefined;

  is(event.type, "upgradeneeded", "Expect an upgradeneeded event");

  is(event.target, request, "Event should be fired on the request");

  ok(event.target.result instanceof IDBDatabase, "Expect a database here");

  let db = event.target.result;

  is(db.version, 1, "Database has correct version");

  db.onupgradeneeded = function () {

ok(

      false,

      "our ongoing VERSION_CHANGE transaction should exclude any others!"

);

};

  db.createObjectStore("foo");

  try {

    db.transaction("foo");

    ok(false, "Transactions should be disallowed now!");

  } catch (e) {

    ok(e instanceof DOMException, "Expect a DOMException");

    is(e.name, "InvalidStateError", "Expect an InvalidStateError");

    is(e.code, DOMException.INVALID_STATE_ERR, "Expect an INVALID_STATE_ERR");

  request.onupgradeneeded = unexpectedSuccessHandler;

  request.transaction.oncomplete = grabEventAndContinueHandler;

  event = yield undefined;

  is(event.type, "complete", "Got complete event");

  try {

    db.transaction("foo");

    ok(true, "Transactions should be allowed now!");

  } catch (e) {

    ok(false, "Transactions should be allowed now!");

  request.onsuccess = grabEventAndContinueHandler;

  event = yield undefined;

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

  is(event.target.result, db, "Same database");

  db.onversionchange = function () {

    ok(true, "next setVersion was unblocked appropriately");

    db.close();

};

  try {

    db.transaction("foo");

    ok(true, "Transactions should be allowed now!");

  } catch (e) {

    ok(false, "Transactions should be allowed now!");

  request.onsuccess = unexpectedSuccessHandler;

  request2.onupgradeneeded = grabEventAndContinueHandler;

  event = yield undefined;

  is(event.type, "upgradeneeded", "Expect an upgradeneeded event");

  db = event.target.result;

  is(db.version, 2, "Database has correct version");

  request2.onupgradeneeded = unexpectedSuccessHandler;

  request2.onsuccess = grabEventAndContinueHandler;

  event = yield undefined;

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

  is(event.target.result, db, "Same database");

  is(db.version, 2, "Database has correct version");

  finishTest();