ui/file_manager/gallery/js/entry_list_watcher_unittest.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 var chrome;
   6 var mockFileSystem;
   7
   8 function setUp() {
   9   chrome = {
  10     fileManagerPrivate: {
  11       onDirectoryChanged: new MockAPIEvent(),
  12       addFileWatch: function(url) {
  13         this.watchedURLs[url] = true;
  14       },
  15       removeFileWatch: function(url) {
  16         delete this.watchedURLs[url];
  17       },
  18       watchedURLs: {}
  19     }
  20   };
  21
  22   mockFileSystem = new MockFileSystem('volumeId', 'filesystem://rootURL');
  23   mockFileSystem.entries['/'] = new MockDirectoryEntry(mockFileSystem, '/');
  24   mockFileSystem.entries['/A.txt'] =
  25       new MockFileEntry(mockFileSystem, '/A.txt', {});
  26   mockFileSystem.entries['/B.txt'] =
  27       new MockFileEntry(mockFileSystem, '/B.txt', {});
  28   mockFileSystem.entries['/C/'] = new MockDirectoryEntry(mockFileSystem, '/C/');
  29   mockFileSystem.entries['/C/D.txt'] =
  30       new MockFileEntry(mockFileSystem, '/C/D.txt', {});
  31 }
  32
  33 function testAddWatcher() {
  34   var list = new cr.ui.ArrayDataModel([
  35     mockFileSystem.entries['/A.txt']
  36   ]);
  37   var watcher = new EntryListWatcher(list);
  38   assertArrayEquals(
  39       ['filesystem://rootURL/'],
  40       Object.keys(chrome.fileManagerPrivate.watchedURLs));
  41   list.push(mockFileSystem.entries['/C/D.txt']);
  42   assertArrayEquals(
  43       ['filesystem://rootURL/', 'filesystem://rootURL/C/'],
  44       Object.keys(chrome.fileManagerPrivate.watchedURLs).sort());
  45 }
  46
  47 function testRemoveWatcher() {
  48   var list = new cr.ui.ArrayDataModel([
  49     mockFileSystem.entries['/A.txt'],
  50     mockFileSystem.entries['/C/D.txt']
  51   ]);
  52   var watcher = new EntryListWatcher(list);
  53   assertArrayEquals(
  54       ['filesystem://rootURL/', 'filesystem://rootURL/C/'],
  55       Object.keys(chrome.fileManagerPrivate.watchedURLs).sort());
  56   list.splice(1, 1);
  57   assertArrayEquals(
  58       ['filesystem://rootURL/'],
  59       Object.keys(chrome.fileManagerPrivate.watchedURLs));
  60
  61 }
  62
  63 function testEntryRemoved(callback) {
  64   var list = new cr.ui.ArrayDataModel([
  65     mockFileSystem.entries['/A.txt'],
  66     mockFileSystem.entries['/B.txt']
  67   ]);
  68
  69   var watcher = new EntryListWatcher(list);
  70   var splicedPromise = new Promise(function(fulfill) {
  71     list.addEventListener('splice', fulfill);
  72   });
  73
  74   var deletedB = mockFileSystem.entries['/B.txt'];
  75   delete mockFileSystem.entries['/B.txt'];
  76   assertArrayEquals(
  77       ['filesystem://rootURL/'],
  78       Object.keys(chrome.fileManagerPrivate.watchedURLs));
  79   chrome.fileManagerPrivate.onDirectoryChanged.dispatch(
  80       {entry: mockFileSystem.entries['/']});
  81
  82   reportPromise(splicedPromise.then(function(event) {
  83     assertEquals(1, event.removed.length);
  84     assertEquals(deletedB, event.removed[0]);
  85   }), callback);
  86 }