tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_cursor_mutation.js (3352B)

      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 objectStoreData = [
     11    // This one will be removed.
     12    { ss: "237-23-7732", name: "Bob" },
     13 
     14    // These will always be included.
     15    { ss: "237-23-7733", name: "Ann" },
     16    { ss: "237-23-7734", name: "Ron" },
     17    { ss: "237-23-7735", name: "Sue" },
     18    { ss: "237-23-7736", name: "Joe" },
     19 
     20    // This one will be added.
     21    { ss: "237-23-7737", name: "Pat" },
     22  ];
     23 
     24  // Post-add and post-remove data ordered by name.
     25  const objectStoreDataNameSort = [1, 4, 5, 2, 3];
     26 
     27  let request = indexedDB.open(
     28    this.window ? window.location.pathname : "Splendid Test",
     29    1
     30  );
     31  request.onerror = errorHandler;
     32  request.onupgradeneeded = grabEventAndContinueHandler;
     33  let event = yield undefined;
     34 
     35  let db = event.target.result;
     36  event.target.onsuccess = continueToNextStep;
     37 
     38  let objectStore = db.createObjectStore("foo", { keyPath: "ss" });
     39  objectStore.createIndex("name", "name", { unique: true });
     40 
     41  for (let i = 0; i < objectStoreData.length - 1; i++) {
     42    objectStore.add(objectStoreData[i]);
     43  }
     44  yield undefined;
     45 
     46  let count = 0;
     47 
     48  let sawAdded = false;
     49  let sawRemoved = false;
     50 
     51  db.transaction("foo").objectStore("foo").openCursor().onsuccess = function (
     52    event
     53  ) {
     54    event.target.transaction.oncomplete = continueToNextStep;
     55    let cursor = event.target.result;
     56    if (cursor) {
     57      if (cursor.value.name == objectStoreData[0].name) {
     58        sawRemoved = true;
     59      }
     60      if (
     61        cursor.value.name == objectStoreData[objectStoreData.length - 1].name
     62      ) {
     63        sawAdded = true;
     64      }
     65      cursor.continue();
     66      count++;
     67    }
     68  };
     69  yield undefined;
     70 
     71  is(count, objectStoreData.length - 1, "Good initial count");
     72  is(sawAdded, false, "Didn't see item that is about to be added");
     73  is(sawRemoved, true, "Saw item that is about to be removed");
     74 
     75  count = 0;
     76  sawAdded = false;
     77  sawRemoved = false;
     78 
     79  db
     80    .transaction("foo", "readwrite")
     81    .objectStore("foo")
     82    .index("name")
     83    .openCursor().onsuccess = function (event) {
     84    event.target.transaction.oncomplete = continueToNextStep;
     85    let cursor = event.target.result;
     86    if (cursor) {
     87      if (cursor.value.name == objectStoreData[0].name) {
     88        sawRemoved = true;
     89      }
     90      if (
     91        cursor.value.name == objectStoreData[objectStoreData.length - 1].name
     92      ) {
     93        sawAdded = true;
     94      }
     95 
     96      is(
     97        cursor.value.name,
     98        objectStoreData[objectStoreDataNameSort[count++]].name,
     99        "Correct name"
    100      );
    101 
    102      if (count == 1) {
    103        let objectStore = event.target.transaction.objectStore("foo");
    104        objectStore.delete(objectStoreData[0].ss).onsuccess = function () {
    105          objectStore.add(
    106            objectStoreData[objectStoreData.length - 1]
    107          ).onsuccess = function () {
    108            cursor.continue();
    109          };
    110        };
    111      } else {
    112        cursor.continue();
    113      }
    114    }
    115  };
    116  yield undefined;
    117 
    118  is(count, objectStoreData.length - 1, "Good final count");
    119  is(sawAdded, true, "Saw item that was added");
    120  is(sawRemoved, false, "Didn't see item that was removed");
    121 
    122  finishTest();
    123 
    124  objectStore = null; // Bug 943409 workaround.
    125 }