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

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 dataCount = 30;

    12   let request = indexedDB.open(this.window ? window.location.pathname : "Splendid Test", 1);

    13   request.onerror = errorHandler;

    14   request.onupgradeneeded = grabEventAndContinueHandler;

    15   let event = yield undefined;

    17   let db = event.target.result;

    18   db.onerror = errorHandler;

    20   event.target.onsuccess = continueToNextStep;

    22   let objectStore = db.createObjectStore("", { keyPath: "key" });

    23   objectStore.createIndex("", "index");

    25   for (let i = 0; i < dataCount; i++) {

    26     objectStore.add({ key: i, index: i });

    27   }

    28   yield undefined;

    30   function getObjectStore() {

    31     return db.transaction("").objectStore("");

    32   }

    34   function getIndex() {

    35     return db.transaction("").objectStore("").index("");

    36   }

    38   let count = 0;

    40   getObjectStore().openCursor().onsuccess = function(event) {

    41     let cursor = event.target.result;

    42     if (cursor) {

    43       count++;

    44       cursor.continue();

    45     }

    46     else {

    47       continueToNextStep();

    48     }

    49   };

    50   yield undefined;

    52   is(count, dataCount, "Saw all data");

    54   count = 0;

    56   getObjectStore().openCursor().onsuccess = function(event) {

    57     let cursor = event.target.result;

    58     if (cursor) {

    59       is(cursor.primaryKey, count, "Got correct object");

    60       if (count) {

    61         count++;

    62         cursor.continue();

    63       }

    64       else {

    65         count = 10;

    66         cursor.advance(10);

    67       }

    68     }

    69     else {

    70       continueToNextStep();

    71     }

    72   };

    73   yield undefined;

    75   is(count, dataCount, "Saw all data");

    77   count = 0;

    79   getIndex().openCursor().onsuccess = function(event) {

    80     let cursor = event.target.result;

    81     if (cursor) {

    82       is(cursor.primaryKey, count, "Got correct object");

    83       if (count) {

    84         count++;

    85         cursor.continue();

    86       }

    87       else {

    88         count = 10;

    89         cursor.advance(10);

    90       }

    91     }

    92     else {

    93       continueToNextStep();

    94     }

    95   };

    96   yield undefined;

    98   is(count, dataCount, "Saw all data");

   100   count = 0;

   102   getIndex().openKeyCursor().onsuccess = function(event) {

   103     let cursor = event.target.result;

   104     if (cursor) {

   105       is(cursor.primaryKey, count, "Got correct object");

   106       if (count) {

   107         count++;

   108         cursor.continue();

   109       }

   110       else {

   111         count = 10;

   112         cursor.advance(10);

   113       }

   114     }

   115     else {

   116       continueToNextStep();

   117     }

   118   };

   119   yield undefined;

   121   is(count, dataCount, "Saw all data");

   123   count = 0;

   125   getObjectStore().openCursor().onsuccess = function(event) {

   126     let cursor = event.target.result;

   127     if (cursor) {

   128       is(cursor.primaryKey, count, "Got correct object");

   129       if (count == 0) {

   130         cursor.advance(dataCount + 1);

   131       }

   132       else {

   133         ok(false, "Should never get here!");

   134         cursor.continue();

   135       }

   136     }

   137     else {

   138       continueToNextStep();

   139     }

   140   };

   141   yield undefined;

   143   is(count, 0, "Saw all data");

   145   count = dataCount - 1;

   147   getObjectStore().openCursor(null, "prev").onsuccess = function(event) {

   148     let cursor = event.target.result;

   149     if (cursor) {

   150       is(cursor.primaryKey, count, "Got correct object");

   151       count--;

   152       if (count == dataCount - 2) {

   153         cursor.advance(10);

   154         count -= 9;

   155       }

   156       else {

   157         cursor.continue();

   158       }

   159     }

   160     else {

   161       continueToNextStep();

   162     }

   163   };

   164   yield undefined;

   166   is(count, -1, "Saw all data");

   168   count = dataCount - 1;

   170   getObjectStore().openCursor(null, "prev").onsuccess = function(event) {

   171     let cursor = event.target.result;

   172     if (cursor) {

   173       is(cursor.primaryKey, count, "Got correct object");

   174       if (count == dataCount - 1) {

   175         cursor.advance(dataCount + 1);

   176       }

   177       else {

   178         ok(false, "Should never get here!");

   179         cursor.continue();

   180       }

   181     }

   182     else {

   183       continueToNextStep();

   184     }

   185   };

   186   yield undefined;

   188   is(count, dataCount - 1, "Saw all data");

   190   finishTest();

   191   yield undefined;

   192 }

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