dom/indexedDB/test/unit/test_overlapping_transactions.js

   1 /**
   2  * Any copyright is dedicated to the Public Domain.
   3  * http://creativecommons.org/publicdomain/zero/1.0/
   4  */
   5
   6 /* exported testGenerator */
   7 var testGenerator = testSteps();
   8
   9 function* testSteps() {
  10   const name = this.window ? window.location.pathname : "Splendid Test";
  11   const objectStores = ["foo", "bar"];
  12
  13   let request = indexedDB.open(name, 1);
  14   request.onerror = errorHandler;
  15   request.onupgradeneeded = grabEventAndContinueHandler;
  16   let event = yield undefined;
  17
  18   let db = event.target.result;
  19   is(db.objectStoreNames.length, 0, "Correct objectStoreNames list");
  20
  21   event.target.onsuccess = grabEventAndContinueHandler;
  22   for (let i in objectStores) {
  23     db.createObjectStore(objectStores[i], { autoIncrement: true });
  24   }
  25   event = yield undefined;
  26
  27   is(
  28     db.objectStoreNames.length,
  29     objectStores.length,
  30     "Correct objectStoreNames list"
  31   );
  32
  33   for (let i = 0; i < 50; i++) {
  34     let stepNumber = 0;
  35
  36     request = db
  37       .transaction(["foo"], "readwrite")
  38       .objectStore("foo")
  39       .add({});
  40     request.onerror = errorHandler;
  41     request.onsuccess = function(event) {
  42       is(stepNumber, 1, "This callback came first");
  43       stepNumber++;
  44       event.target.transaction.oncomplete = grabEventAndContinueHandler;
  45     };
  46
  47     request = db
  48       .transaction(["foo"], "readwrite")
  49       .objectStore("foo")
  50       .add({});
  51     request.onerror = errorHandler;
  52     request.onsuccess = function(event) {
  53       is(stepNumber, 2, "This callback came second");
  54       stepNumber++;
  55       event.target.transaction.oncomplete = grabEventAndContinueHandler;
  56     };
  57
  58     request = db
  59       .transaction(["foo", "bar"], "readwrite")
  60       .objectStore("bar")
  61       .add({});
  62     request.onerror = errorHandler;
  63     request.onsuccess = function(event) {
  64       is(stepNumber, 3, "This callback came third");
  65       stepNumber++;
  66       event.target.transaction.oncomplete = grabEventAndContinueHandler;
  67     };
  68
  69     request = db
  70       .transaction(["foo", "bar"], "readwrite")
  71       .objectStore("bar")
  72       .add({});
  73     request.onerror = errorHandler;
  74     request.onsuccess = function(event) {
  75       is(stepNumber, 4, "This callback came fourth");
  76       stepNumber++;
  77       event.target.transaction.oncomplete = grabEventAndContinueHandler;
  78     };
  79
  80     request = db
  81       .transaction(["bar"], "readwrite")
  82       .objectStore("bar")
  83       .add({});
  84     request.onerror = errorHandler;
  85     request.onsuccess = function(event) {
  86       is(stepNumber, 5, "This callback came fifth");
  87       stepNumber++;
  88       event.target.transaction.oncomplete = grabEventAndContinueHandler;
  89     };
  90
  91     stepNumber++;
  92     yield undefined;
  93     yield undefined;
  94     yield undefined;
  95     yield undefined;
  96     yield undefined;
  97
  98     is(stepNumber, 6, "All callbacks received");
  99   }
 100
 101   finishTest();
 102 }