The Tor Browser: dom/indexedDB/test/unit/test_index_empty

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

     1 /**

     2  * Any copyright is dedicated to the Public Domain.

     3  * http://creativecommons.org/publicdomain/zero/1.0/

     4  */

     6 var testGenerator = testSteps();

     8 function testSteps()

9 {

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

    12   const objectStoreData = [

    13     { key: "1", value: "foo" },

    14     { key: "2", value: "bar" },

    15     { key: "3", value: "baz" }

    16   ];

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

    19   request.onerror = errorHandler;

    20   request.onupgradeneeded = grabEventAndContinueHandler;

    21   request.onsuccess = grabEventAndContinueHandler;

    22   let event = yield undefined; // upgradeneeded

    24   let db = event.target.result;

    26   let objectStore = db.createObjectStore("data", { keyPath: null });

    28   // First, add all our data to the object store.

    29   let addedData = 0;

    30   for (let i in objectStoreData) {

    31     request = objectStore.add(objectStoreData[i].value,

    32                               objectStoreData[i].key);

    33     request.onerror = errorHandler;

    34     request.onsuccess = function(event) {

    35       if (++addedData == objectStoreData.length) {

    36         testGenerator.send(event);

    37       }

    38     }

    39   }

    40   event = yield undefined; // testGenerator.send

    42   // Now create the index.

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

    44   yield undefined; // success

    46   let trans = db.transaction("data", "readwrite");

    47   objectStore = trans.objectStore("data");

    48   index = objectStore.index("set");

    50   let request = index.get("bar");

    51   request.onerror = errorHandler;

    52   request.onsuccess = grabEventAndContinueHandler;

    54   let event = yield undefined;

    56   is(event.target.result, "bar", "Got correct result");

    58   let request = objectStore.add("foopy", 4);

    59   request.onerror = errorHandler;

    60   request.onsuccess = grabEventAndContinueHandler;

    62   yield undefined;

    64   let request = index.get("foopy");

    65   request.onerror = errorHandler;

    66   request.onsuccess = grabEventAndContinueHandler;

    68   let event = yield undefined;

    70   is(event.target.result, "foopy", "Got correct result");

    72   let request = objectStore.add("foopy", 5);

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

    74   request.onsuccess = unexpectedSuccessHandler;

    76   trans.oncomplete = grabEventAndContinueHandler;

    78   yield undefined;

    79   yield undefined;

    81   finishTest();

    82   yield undefined;

    83 }

The Tor Browser / file revision