The Tor Browser / file comparison
comparison: xpcom/tests/unit/test_nsIMutableArray.js
xpcom/tests/unit/test_nsIMutableArray.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:02fcd23a6e2c |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 const Ci = Components.interfaces; | |
| 6 const Cr = Components.results; | |
| 7 const Cc = Components.classes; | |
| 8 const CC = Components.Constructor; | |
| 9 | |
| 10 var MutableArray = CC("@mozilla.org/array;1", "nsIMutableArray"); | |
| 11 var SupportsString = CC("@mozilla.org/supports-string;1", "nsISupportsString"); | |
| 12 | |
| 13 function create_n_element_array(n) | |
| 14 { | |
| 15 var arr = new MutableArray(); | |
| 16 for (let i=0; i<n; i++) { | |
| 17 let str = new SupportsString(); | |
| 18 str.data = "element " + i; | |
| 19 arr.appendElement(str, false); | |
| 20 } | |
| 21 return arr; | |
| 22 } | |
| 23 | |
| 24 function test_appending_null_actually_inserts() | |
| 25 { | |
| 26 var arr = new MutableArray(); | |
| 27 do_check_eq(0, arr.length); | |
| 28 arr.appendElement(null, false); | |
| 29 do_check_eq(1, arr.length); | |
| 30 } | |
| 31 | |
| 32 function test_object_gets_appended() | |
| 33 { | |
| 34 var arr = new MutableArray(); | |
| 35 var str = new SupportsString(); | |
| 36 str.data = "hello"; | |
| 37 arr.appendElement(str, false); | |
| 38 do_check_eq(1, arr.length); | |
| 39 var obj = arr.queryElementAt(0, Ci.nsISupportsString); | |
| 40 do_check_eq(str, obj); | |
| 41 } | |
| 42 | |
| 43 function test_insert_at_beginning() | |
| 44 { | |
| 45 var arr = create_n_element_array(5); | |
| 46 // just a sanity check | |
| 47 do_check_eq(5, arr.length); | |
| 48 var str = new SupportsString(); | |
| 49 str.data = "hello"; | |
| 50 arr.insertElementAt(str, 0, false); | |
| 51 do_check_eq(6, arr.length); | |
| 52 var obj = arr.queryElementAt(0, Ci.nsISupportsString); | |
| 53 do_check_eq(str, obj); | |
| 54 // check the data of all the other objects | |
| 55 for (let i=1; i<arr.length; i++) { | |
| 56 let obj = arr.queryElementAt(i, Ci.nsISupportsString); | |
| 57 do_check_eq("element " + (i-1), obj.data); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 function test_replace_element() | |
| 62 { | |
| 63 var arr = create_n_element_array(5); | |
| 64 // just a sanity check | |
| 65 do_check_eq(5, arr.length); | |
| 66 var str = new SupportsString(); | |
| 67 str.data = "hello"; | |
| 68 // replace first element | |
| 69 arr.replaceElementAt(str, 0, false); | |
| 70 do_check_eq(5, arr.length); | |
| 71 var obj = arr.queryElementAt(0, Ci.nsISupportsString); | |
| 72 do_check_eq(str, obj); | |
| 73 // replace last element | |
| 74 arr.replaceElementAt(str, arr.length - 1, false); | |
| 75 do_check_eq(5, arr.length); | |
| 76 obj = arr.queryElementAt(arr.length - 1, Ci.nsISupportsString); | |
| 77 do_check_eq(str, obj); | |
| 78 // replace after last element, should insert empty elements | |
| 79 arr.replaceElementAt(str, 9, false); | |
| 80 do_check_eq(10, arr.length); | |
| 81 obj = arr.queryElementAt(9, Ci.nsISupportsString); | |
| 82 do_check_eq(str, obj); | |
| 83 // AFAIK there's no way to check the empty elements, since you can't QI them. | |
| 84 } | |
| 85 | |
| 86 function test_clear() | |
| 87 { | |
| 88 var arr = create_n_element_array(5); | |
| 89 // just a sanity check | |
| 90 do_check_eq(5, arr.length); | |
| 91 arr.clear(); | |
| 92 do_check_eq(0, arr.length); | |
| 93 } | |
| 94 | |
| 95 function test_enumerate() | |
| 96 { | |
| 97 var arr = create_n_element_array(5); | |
| 98 do_check_eq(5, arr.length); | |
| 99 var en = arr.enumerate(); | |
| 100 var i = 0; | |
| 101 while (en.hasMoreElements()) { | |
| 102 let str = en.getNext(); | |
| 103 do_check_true(str instanceof Ci.nsISupportsString); | |
| 104 do_check_eq(str.data, "element " + i); | |
| 105 i++; | |
| 106 } | |
| 107 do_check_eq(arr.length, i); | |
| 108 } | |
| 109 | |
| 110 var tests = [ | |
| 111 test_appending_null_actually_inserts, | |
| 112 test_object_gets_appended, | |
| 113 test_insert_at_beginning, | |
| 114 test_replace_element, | |
| 115 test_clear, | |
| 116 test_enumerate, | |
| 117 ]; | |
| 118 | |
| 119 function run_test() { | |
| 120 for (var i = 0; i < tests.length; i++) | |
| 121 tests[i](); | |
| 122 } |
