src/chrome/test/data/extensions/api_test/file_browser/filehandler_create/test.js

   1 // Copyright (c) 2012 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 EXTENSION_ID = 'kidcpjlbjdmcnmccjhjdckhbngnhnepk';
   6 var FILE_CONTENTS = 'hello from test extension.';
   7
   8 function errorCallback(error) {
   9   var msg = '';
  10   if (!error.code) {
  11     msg = error.message;
  12   } else {
  13     switch (error.code) {
  14       case FileError.QUOTA_EXCEEDED_ERR:
  15         msg = 'QUOTA_EXCEEDED_ERR';
  16         break;
  17       case FileError.NOT_FOUND_ERR:
  18         msg = 'NOT_FOUND_ERR';
  19         break;
  20       case FileError.SECURITY_ERR:
  21         msg = 'SECURITY_ERR';
  22         break;
  23       case FileError.INVALID_MODIFICATION_ERR:
  24         msg = 'INVALID_MODIFICATION_ERR';
  25         break;
  26       case FileError.INVALID_STATE_ERR:
  27         msg = 'INVALID_STATE_ERR';
  28         break;
  29       default:
  30         msg = 'Unknown Error';
  31         break;
  32     };
  33   }
  34
  35   chrome.test.fail(msg);
  36 }
  37
  38 function ensureFileExists(entry, successCallback, errorCallback) {
  39   entry.filesystem.root.getFile(entry.fullPath,
  40                                 {create: true},
  41                                 successCallback,
  42                                 errorCallback);
  43 }
  44
  45 function writeToFile(entry) {
  46   entry.createWriter(function(writer) {
  47     writer.onerror = function(e) {
  48       errorCallback(writer.error);
  49     };
  50     writer.onwrite = chrome.test.succeed;
  51
  52     var blob = new Blob([FILE_CONTENTS], {type: 'text/plain'});
  53     writer.write(blob);
  54   }, errorCallback);
  55 }
  56
  57 chrome.test.runTests([
  58   function selectionSuccessful() {
  59     // The test will call selectFile function and expect it to succeed.
  60     // When it gets the file entry, it verifies that the permissions given in
  61     // the method allow the extension to read/write to selected file.
  62     chrome.fileBrowserHandler.selectFile(
  63         { suggestedName: 'some_file_name.txt',
  64           allowedFileExtensions: ['txt', 'html'] },
  65         function(result) {
  66           chrome.test.assertTrue(!!result);
  67           chrome.test.assertTrue(result.success);
  68           chrome.test.assertTrue(!!result.entry);
  69
  70           ensureFileExists(result.entry, writeToFile, errorCallback);
  71       });
  72   },
  73   function selectionFails() {
  74     // The test expects that selectFile returns failure with an empty entry.
  75     chrome.fileBrowserHandler.selectFile({ suggestedName: 'fail' },
  76         function(result) {
  77           chrome.test.assertTrue(!!result);
  78           // Entry should be set iff operation succeeded.
  79           chrome.test.assertEq(false, result.success);
  80           chrome.test.assertTrue(result.entry == null);
  81           chrome.test.succeed();
  82         });
  83   }]);