The Tor Browser: dom/indexedDB/test/unit/test_index_update_delete.js@b8a032363ba2 (annotated)

dom/indexedDB/test/unit/test_index_update_delete.js@b8a032363ba2 (annotated)

dom/indexedDB/test/unit/test_index_update_delete.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /**
  * Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 var testGenerator = testSteps();
 function testSteps()
 {
   let name = this.window ? window.location.pathname : "Splendid Test";
   let request = indexedDB.open(name, 1);
   request.onerror = errorHandler;
   request.onupgradeneeded = grabEventAndContinueHandler;
   request.onsuccess = grabEventAndContinueHandler;
   let event = yield undefined;
   let db = event.target.result;
   db.onerror = errorHandler;
   for each (let autoIncrement in [false, true]) {
     let objectStore =
       db.createObjectStore(autoIncrement, { keyPath: "id",
                                             autoIncrement: autoIncrement });
     for (let i = 0; i < 10; i++) {
       objectStore.add({ id: i, index: i });
     }
     for each (let unique in [false, true]) {
       objectStore.createIndex(unique, "index", { unique: unique });
     }
     for (let i = 10; i < 20; i++) {
       objectStore.add({ id: i, index: i });
     }
   }
   event = yield undefined;
   is(event.type, "success", "expect a success event");
   for each (let autoIncrement in [false, true]) {
     let objectStore = db.transaction(autoIncrement)
                         .objectStore(autoIncrement);
     objectStore.count().onsuccess = grabEventAndContinueHandler;
     let event = yield undefined;
     is(event.target.result, 20, "Correct number of entries in objectStore");
     let objectStoreCount = event.target.result;
     let indexCount = event.target.result;
     for each (let unique in [false, true]) {
       let index = db.transaction(autoIncrement, "readwrite")
                     .objectStore(autoIncrement)
                     .index(unique);
       index.count().onsuccess = grabEventAndContinueHandler;
       let event = yield undefined;
       is(event.target.result, indexCount,
          "Correct number of entries in index");
       let modifiedEntry = unique ? 5 : 10;
       let keyRange = IDBKeyRange.only(modifiedEntry);
       let sawEntry = false;
       index.openCursor(keyRange).onsuccess = function(event) {
         let cursor = event.target.result;
         if (cursor) {
           sawEntry = true;
           is(cursor.key, modifiedEntry, "Correct key");
           cursor.value.index = unique ? 30 : 35;
           cursor.update(cursor.value).onsuccess = function(event) {
             cursor.continue();
           }
         }
         else {
           continueToNextStep();
         }
       }
       yield undefined;
       is(sawEntry, true, "Saw entry for key value " + modifiedEntry);
       // Recount index. Shouldn't change.
       index = db.transaction(autoIncrement, "readwrite")
                 .objectStore(autoIncrement)
                 .index(unique);
       index.count().onsuccess = grabEventAndContinueHandler;
       event = yield undefined;
       is(event.target.result, indexCount,
          "Correct number of entries in index");
       modifiedEntry = unique ? 30 : 35;
       keyRange = IDBKeyRange.only(modifiedEntry);
       sawEntry = false;
       index.openCursor(keyRange).onsuccess = function(event) {
         let cursor = event.target.result;
         if (cursor) {
           sawEntry = true;
           is(cursor.key, modifiedEntry, "Correct key");
           delete cursor.value.index;
           cursor.update(cursor.value).onsuccess = function(event) {
             indexCount--;
             cursor.continue();
           }
         }
         else {
           continueToNextStep();
         }
       }
       yield undefined;
       is(sawEntry, true, "Saw entry for key value " + modifiedEntry);
       // Recount objectStore. Should be unchanged.
       objectStore = db.transaction(autoIncrement, "readwrite")
                       .objectStore(autoIncrement);
       objectStore.count().onsuccess = grabEventAndContinueHandler;
       event = yield undefined;
       is(event.target.result, objectStoreCount,
          "Correct number of entries in objectStore");
       // Recount index. Should be one item less.
       index = objectStore.index(unique);
       index.count().onsuccess = grabEventAndContinueHandler;
       event = yield undefined;
       is(event.target.result, indexCount,
          "Correct number of entries in index");
       modifiedEntry = objectStoreCount - 1;
       objectStore.delete(modifiedEntry).onsuccess =
         grabEventAndContinueHandler;
       event = yield undefined;
       objectStoreCount--;
       indexCount--;
       objectStore.count().onsuccess = grabEventAndContinueHandler;
       event = yield undefined;
       is(event.target.result, objectStoreCount,
          "Correct number of entries in objectStore");
       index.count().onsuccess = grabEventAndContinueHandler;
       event = yield undefined;
       is(event.target.result, indexCount,
          "Correct number of entries in index");
       index = event = null; // Bug 943409 workaround.
     }
     objectStore = event = null; // Bug 943409 workaround.
   }
   finishTest();
   event = db = request = null; // Bug 943409 workaround.
   yield undefined;
 }