Query printers for autoconf info during setup.

chrome/test/data/webui/settings/cups_printer_page_tests.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @implements {settings.CupsPrintersBrowserProxy}
  * @extends {TestBrowserProxy}
  */
 var TestCupsPrintersBrowserProxy = function() {
   TestBrowserProxy.call(this, [
     'getCupsPrintersList',
     'getCupsPrinterManufacturersList',
     'getCupsPrinterModelsList',
+    'getPrinterInfo',
     'startDiscoveringPrinters',
     'stopDiscoveringPrinters',
   ]);
 };
 
 TestCupsPrintersBrowserProxy.prototype = {
   __proto__: TestBrowserProxy.prototype,
 
   printerList: [],
   manufacturers: [],
   models: [],
+  printerInfo: {},
 
   /** @override */
   getCupsPrintersList: function() {
     this.methodCalled('getCupsPrintersList');
     return Promise.resolve(this.printerList);
   },
 
   /** @override */
   getCupsPrinterManufacturersList: function() {
     this.methodCalled('getCupsPrinterManufacturersList');
     return Promise.resolve(this.manufacturers);
   },
 
   /** @override */
   getCupsPrinterModelsList: function(manufacturer) {
     this.methodCalled('getCupsPrinterModelsList', manufacturer);
     return Promise.resolve(this.models);
   },
 
   /** @override */
+  getPrinterInfo: function(newPrinter) {
+    this.methodCalled('getPrinterInfo', newPrinter);
+    // Reject all calls for now.
+    return Promise.reject();
+  },
+
+  /** @override */
   startDiscoveringPrinters: function() {
     this.methodCalled('startDiscoveringPrinters');
   },
 
   /** @override */
   stopDiscoveringPrinters: function() {
     this.methodCalled('stopDiscoveringPrinters');
   },
 };
 
@@ skipping 54 matching lines @@
   test('ValidAddOpensModelSelection', function() {
     // Starts in discovery dialog, select add manually button.
     var discoveryDialog = dialog.$$('add-printer-discovery-dialog');
     assertTrue(!!discoveryDialog);
     MockInteractions.tap(discoveryDialog.$$('.secondary-button'));
     Polymer.dom.flush();
 
     // Now we should be in the manually add dialog.
     var addDialog = dialog.$$('add-printer-manually-dialog');
     assertTrue(!!addDialog);
-
     fillAddManuallyDialog(addDialog);
 
     MockInteractions.tap(addDialog.$$('.action-button'));
     Polymer.dom.flush();
+    // Configure is shown until getPrinterInfo is rejected.
+    assertTrue(!!dialog.$$('add-printer-configuring-dialog'));
 
-    // showing model selection
-    assertFalse(!!dialog.$$('add-printer-configuring-dialog'));
-    assertTrue(!!dialog.$$('add-printer-manufacturer-model-dialog'));
+    // Upon rejection, show model.
+    return cupsPrintersBrowserProxy.
+        whenCalled('getCupsPrinterManufacturersList').
+        then(function() {
+          // TODO(skau): Verify other dialogs are hidden.
+          assertTrue(!!dialog.$$('add-printer-manufacturer-model-dialog'));
+        });
   });
 
   /**
    * Test that getModels isn't called with a blank query.
    */
   test('NoBlankQueries', function() {
     var discoveryDialog = dialog.$$('add-printer-discovery-dialog');
     assertTrue(!!discoveryDialog);
     MockInteractions.tap(discoveryDialog.$$('.secondary-button'));
     Polymer.dom.flush();
 
     var addDialog = dialog.$$('add-printer-manually-dialog');
     assertTrue(!!addDialog);
     fillAddManuallyDialog(addDialog);
 
     cupsPrintersBrowserProxy.whenCalled('getCupsPrinterModelsList')
         .then(function(manufacturer) { assertGT(0, manufacturer.length); });
 
     cupsPrintersBrowserProxy.manufacturers =
         ['ManufacturerA', 'ManufacturerB', 'Chromites'];
     MockInteractions.tap(addDialog.$$('.action-button'));
     Polymer.dom.flush();
 
-    var modelDialog = dialog.$$('add-printer-manufacturer-model-dialog');
-    assertTrue(!!modelDialog);
-
-    return cupsPrintersBrowserProxy.whenCalled(
-        'getCupsPrinterManufacturersList');
+    return cupsPrintersBrowserProxy.
+        whenCalled('getCupsPrinterManufacturersList').
+        then(function() {
+          var modelDialog = dialog.$$('add-printer-manufacturer-model-dialog');
+          assertTrue(!!modelDialog);
+        });
   });
 });