The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/xpcom/tests/unit/test_nsIMutableArray.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,122 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +const Ci = Components.interfaces;
     1.9 +const Cr = Components.results;
    1.10 +const Cc = Components.classes;
    1.11 +const CC = Components.Constructor;
    1.12 +
    1.13 +var MutableArray = CC("@mozilla.org/array;1", "nsIMutableArray");
    1.14 +var SupportsString = CC("@mozilla.org/supports-string;1", "nsISupportsString");
    1.15 +
    1.16 +function create_n_element_array(n)
    1.17 +{
    1.18 +  var arr = new MutableArray();
    1.19 +  for (let i=0; i<n; i++) {
    1.20 +    let str = new SupportsString();
    1.21 +    str.data = "element " + i;
    1.22 +    arr.appendElement(str, false);
    1.23 +  }
    1.24 +  return arr;
    1.25 +}
    1.26 +
    1.27 +function test_appending_null_actually_inserts()
    1.28 +{
    1.29 +  var arr = new MutableArray();
    1.30 +  do_check_eq(0, arr.length);
    1.31 +  arr.appendElement(null, false);
    1.32 +  do_check_eq(1, arr.length);
    1.33 +}
    1.34 +
    1.35 +function test_object_gets_appended()
    1.36 +{
    1.37 +  var arr = new MutableArray();
    1.38 +  var str = new SupportsString();
    1.39 +  str.data = "hello";
    1.40 +  arr.appendElement(str, false);
    1.41 +  do_check_eq(1, arr.length);
    1.42 +  var obj = arr.queryElementAt(0, Ci.nsISupportsString);
    1.43 +  do_check_eq(str, obj);
    1.44 +}
    1.45 +
    1.46 +function test_insert_at_beginning()
    1.47 +{
    1.48 +  var arr = create_n_element_array(5);
    1.49 +  // just a sanity check
    1.50 +  do_check_eq(5, arr.length);
    1.51 +  var str = new SupportsString();
    1.52 +  str.data = "hello";
    1.53 +  arr.insertElementAt(str, 0, false);
    1.54 +  do_check_eq(6, arr.length);
    1.55 +  var obj = arr.queryElementAt(0, Ci.nsISupportsString);
    1.56 +  do_check_eq(str, obj);
    1.57 +  // check the data of all the other objects
    1.58 +  for (let i=1; i<arr.length; i++) {
    1.59 +    let obj = arr.queryElementAt(i, Ci.nsISupportsString);
    1.60 +    do_check_eq("element " + (i-1), obj.data);
    1.61 +  }
    1.62 +}
    1.63 +
    1.64 +function test_replace_element()
    1.65 +{
    1.66 +  var arr = create_n_element_array(5);
    1.67 +  // just a sanity check
    1.68 +  do_check_eq(5, arr.length);
    1.69 +  var str = new SupportsString();
    1.70 +  str.data = "hello";
    1.71 +  // replace first element
    1.72 +  arr.replaceElementAt(str, 0, false);
    1.73 +  do_check_eq(5, arr.length);
    1.74 +  var obj = arr.queryElementAt(0, Ci.nsISupportsString);
    1.75 +  do_check_eq(str, obj);
    1.76 +  // replace last element
    1.77 +  arr.replaceElementAt(str, arr.length - 1, false);
    1.78 +  do_check_eq(5, arr.length);
    1.79 +  obj = arr.queryElementAt(arr.length - 1, Ci.nsISupportsString);
    1.80 +  do_check_eq(str, obj);
    1.81 +  // replace after last element, should insert empty elements
    1.82 +  arr.replaceElementAt(str, 9, false);
    1.83 +  do_check_eq(10, arr.length);
    1.84 +  obj = arr.queryElementAt(9, Ci.nsISupportsString);
    1.85 +  do_check_eq(str, obj);
    1.86 +  // AFAIK there's no way to check the empty elements, since you can't QI them.
    1.87 +}
    1.88 +
    1.89 +function test_clear()
    1.90 +{
    1.91 +  var arr = create_n_element_array(5);
    1.92 +  // just a sanity check
    1.93 +  do_check_eq(5, arr.length);
    1.94 +  arr.clear();
    1.95 +  do_check_eq(0, arr.length);
    1.96 +}
    1.97 +
    1.98 +function test_enumerate()
    1.99 +{
   1.100 +  var arr = create_n_element_array(5);
   1.101 +  do_check_eq(5, arr.length);
   1.102 +  var en = arr.enumerate();
   1.103 +  var i = 0;
   1.104 +  while (en.hasMoreElements()) {
   1.105 +    let str = en.getNext();
   1.106 +    do_check_true(str instanceof Ci.nsISupportsString);
   1.107 +    do_check_eq(str.data, "element " + i);
   1.108 +    i++;
   1.109 +  }
   1.110 +  do_check_eq(arr.length, i);
   1.111 +}
   1.112 +
   1.113 +var tests = [
   1.114 +  test_appending_null_actually_inserts,
   1.115 +  test_object_gets_appended,
   1.116 +  test_insert_at_beginning,
   1.117 +  test_replace_element,
   1.118 +  test_clear,
   1.119 +  test_enumerate,
   1.120 +];
   1.121 +
   1.122 +function run_test() {
   1.123 +  for (var i = 0; i < tests.length; i++)
   1.124 +    tests[i]();
   1.125 +}