test_setVersion_events.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";

  // Open a datbase for the first time.

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

  // Sanity checks

  ok(request instanceof IDBRequest, "Request should be an IDBRequest");

ok(

    request instanceof IDBOpenDBRequest,

    "Request should be an IDBOpenDBRequest"

);

  ok(request instanceof EventTarget, "Request should be an EventTarget");

  is(request.source, null, "Request should have no source");

  try {

    request.result;

    ok(false, "Getter should have thrown!");

  } catch (e) {

    if (e.result == 0x8053000b /* NS_ERROR_DOM_INVALID_STATE_ERR */) {

      ok(true, "Getter threw the right exception");

    } else {

      throw e;

  request.onerror = errorHandler;

  request.onsuccess = grabEventAndContinueHandler;

  let event = yield undefined;

  let versionChangeEventCount = 0;

  let db1, db2, db3;

  db1 = event.target.result;

  db1.addEventListener("versionchange", function (event) {

    ok(true, "Got version change event");

    ok(event instanceof IDBVersionChangeEvent, "Event is of the right type");

    is("source" in event.target, false, "Correct source");

    is(event.target, db1, "Correct target");

    is(event.target.version, 1, "Correct db version");

    is(event.oldVersion, 1, "Correct event oldVersion");

    is(event.newVersion, 2, "Correct event newVersion");

    is(versionChangeEventCount++, 0, "Correct count");

    db1.close();

});

  // Open the database again and trigger an upgrade that should succeed

  request = indexedDB.open(name, 2);

  request.onerror = errorHandler;

  request.onsuccess = errorHandler;

  request.onupgradeneeded = grabEventAndContinueHandler;

  request.onblocked = errorHandler;

  event = yield undefined;

  // Test the upgradeneeded event.

  ok(event instanceof IDBVersionChangeEvent, "Event is of the right type");

  ok(event.target.result instanceof IDBDatabase, "Good result");

  db2 = event.target.result;

  is(event.target.transaction.mode, "versionchange", "Correct mode");

  is(db2.version, 2, "Correct db version");

  is(event.oldVersion, 1, "Correct event oldVersion");

  is(event.newVersion, 2, "Correct event newVersion");

  request.onupgradeneeded = errorHandler;

  request.onsuccess = grabEventAndContinueHandler;

  event = yield undefined;

  db2.addEventListener("versionchange", function (event) {

    ok(true, "Got version change event");

    ok(event instanceof IDBVersionChangeEvent, "Event is of the right type");

    is("source" in event.target, false, "Correct source");

    is(event.target, db2, "Correct target");

    is(event.target.version, 2, "Correct db version");

    is(event.oldVersion, 2, "Correct event oldVersion");

    is(event.newVersion, 3, "Correct event newVersion");

    is(versionChangeEventCount++, 1, "Correct count");

});

  // Test opening the existing version again

  request = indexedDB.open(name, 2);

  request.onerror = errorHandler;

  request.onsuccess = grabEventAndContinueHandler;

  request.onblocked = errorHandler;

  event = yield undefined;

  db3 = event.target.result;

  // Test an upgrade that should fail

  request = indexedDB.open(name, 3);

  request.onerror = errorHandler;

  request.onsuccess = errorHandler;

  request.onupgradeneeded = errorHandler;

  request.onblocked = grabEventAndContinueHandler;

  event = yield undefined;

  ok(true, "Got version change blocked event");

  ok(event instanceof IDBVersionChangeEvent, "Event is of the right type");

  is(event.target.source, null, "Correct source");

  is(event.target.transaction, null, "Correct transaction");

  is(event.target, request, "Correct target");

  is(db3.version, 2, "Correct db version");

  is(event.oldVersion, 2, "Correct event oldVersion");

  is(event.newVersion, 3, "Correct event newVersion");

  versionChangeEventCount++;

  db2.close();

  db3.close();

  request.onupgradeneeded = grabEventAndContinueHandler;

  request.onsuccess = grabEventAndContinueHandler;

  event = yield undefined;

  event = yield undefined;

  db3 = event.target.result;

  db3.close();

  // Test another upgrade that should succeed.

  request = indexedDB.open(name, 4);

  request.onerror = errorHandler;

  request.onsuccess = errorHandler;

  request.onupgradeneeded = grabEventAndContinueHandler;

  request.onblocked = errorHandler;

  event = yield undefined;

  ok(event instanceof IDBVersionChangeEvent, "Event is of the right type");

  ok(event.target.result instanceof IDBDatabase, "Good result");

  is(event.target.transaction.mode, "versionchange", "Correct mode");

  is(event.oldVersion, 3, "Correct event oldVersion");

  is(event.newVersion, 4, "Correct event newVersion");

  request.onsuccess = grabEventAndContinueHandler;

  event = yield undefined;

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

  is(event.target.result.version, 4, "Right version");

  is(db3.version, 3, "After closing the version should not change!");

  is(db2.version, 2, "After closing the version should not change!");

  is(db1.version, 1, "After closing the version should not change!");

  is(versionChangeEventCount, 3, "Saw all expected events");

  event = new IDBVersionChangeEvent("versionchange");

  ok(event, "Should be able to create an event with just passing in the type");

  event = new IDBVersionChangeEvent("versionchange", { oldVersion: 1 });

  ok(event, "Should be able to create an event with just the old version");

  is(event.oldVersion, 1, "Correct old version");

  is(event.newVersion, null, "Correct new version");

  event = new IDBVersionChangeEvent("versionchange", { newVersion: 1 });

  ok(event, "Should be able to create an event with just the new version");

  is(event.oldVersion, 0, "Correct old version");

  is(event.newVersion, 1, "Correct new version");

  event = new IDBVersionChangeEvent("versionchange", {

    oldVersion: 1,

    newVersion: 2,

});

  ok(event, "Should be able to create an event with both versions");

  is(event.oldVersion, 1, "Correct old version");

  is(event.newVersion, 2, "Correct new version");

  finishTest();