extensions/test/data/api_test/printer_provider/request_printers_second/test.js

   1 // Copyright 2015 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 chrome.test.sendMessage('loaded', function(test) {
   6   chrome.test.runTests([function printTest() {
   7     if (test == 'NO_LISTENER') {
   8       chrome.test.sendMessage('ready');
   9       chrome.test.succeed();
  10       return;
  11     }
  12
  13     chrome.printerProvider.onGetPrintersRequested.addListener(
  14         function(callback) {
  15           chrome.test.assertFalse(!!chrome.printerProviderInternal);
  16           chrome.test.assertTrue(!!callback);
  17
  18           if (test == 'IGNORE_CALLBACK') {
  19             chrome.test.succeed();
  20             return;
  21           }
  22
  23           if (test == 'INVALID_VALUE') {
  24             chrome.test.assertThrows(
  25                 callback,
  26                 ['XXX'],
  27                 'Error validating the callback argument: '+
  28                 'Expected an object, found string.');
  29           } else if (test == 'EMPTY') {
  30             callback([]);
  31           } else {
  32             chrome.test.assertEq('OK', test);
  33             callback([{
  34               id: 'printer1',
  35               name: 'Printer 1',
  36               description: 'Test printer'
  37             }, {
  38               id: 'printerNoDesc',
  39               name: 'Printer 2'
  40             }]);
  41           }
  42
  43           chrome.test.assertThrows(
  44               callback,
  45               [],
  46               'Event callback must not be called more than once.');
  47
  48           chrome.test.succeed();
  49         });
  50
  51     chrome.test.sendMessage('ready');
  52   }]);
  53 });