Print Preview: Fix destination dialog interactive test

This test was passing accidentally due to an issue with autofocus. The
print-preview-user-manager should be necessary to make the test pass.
Add it to the test.

Bug: 979603
Change-Id: I44065fdfcd28ad69b46373805f67f37c6a16799c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1704734
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678954}

chrome/browser/resources/print_preview/ui/destination_dialog.html

@@ -165,9 +165,11 @@
             <option value="">$i18n{addAccountTitle}</option>
           </select>
         </div>
+        <!-- Note: Autofocus is not used below, as due to a Blink issue it is
+          not possible to test refocusing this element in tests if autofocus is
+          used. autofocus can be restored when this issue is resolved. -->
         <print-preview-search-box id="searchBox"
-            label="$i18n{searchBoxPlaceholder}" search-query="{{searchQuery_}}"
-            autofocus>
+            label="$i18n{searchBoxPlaceholder}" search-query="{{searchQuery_}}">
         </print-preview-search-box>
       </div>
       <div slot="body">

chrome/browser/resources/print_preview/ui/destination_dialog.js

@@ -287,6 +287,7 @@ Polymer({
 
   show: function() {
     this.$.dialog.showModal();
+    this.$.searchBox.focus();
     this.loadingDestinations_ = this.destinationStore === undefined ||
         this.destinationStore.isPrintDestinationSearchInProgress;
     this.metrics_.record(

chrome/test/data/webui/print_preview/destination_dialog_interactive_test.js

@@ -16,9 +16,6 @@ cr.define('destination_dialog_interactive_test', function() {
     /** @type {?PrintPreviewDestinationDialogElement} */
     let dialog = null;
 
-    /** @type {?print_preview.DestinationStore} */
-    let destinationStore = null;
-
     /** @type {?print_preview.NativeLayer} */
     let nativeLayer = null;
 
@@ -29,30 +26,41 @@ cr.define('destination_dialog_interactive_test', function() {
 
     /** @override */
     setup(function() {
+      PolymerTest.clearBody();
+
       // Create destinations.
       nativeLayer = new print_preview.NativeLayerStub();
       print_preview.NativeLayer.setInstance(nativeLayer);
-      destinationStore = print_preview_test_utils.createDestinationStore();
       const localDestinations = [];
       const destinations = print_preview_test_utils.getDestinations(
           nativeLayer, localDestinations);
       const recentDestinations =
           [print_preview.makeRecentDestination(destinations[4])];
-      destinationStore.init(
-          false /* isInAppKioskMode */, 'FooDevice' /* printerName */,
-          '' /* serializedDefaultDestinationSelectionRulesStr */,
-          recentDestinations /* recentDestinations */);
       nativeLayer.setLocalDestinations(localDestinations);
-
-      // Set up dialog
-      dialog = document.createElement('print-preview-destination-dialog');
-      dialog.activeUser = '';
-      dialog.users = [];
-      dialog.destinationStore = destinationStore;
-      dialog.invitationStore = new print_preview.InvitationStore();
-      dialog.recentDestinations = recentDestinations;
-      document.body.appendChild(dialog);
-      return nativeLayer.whenCalled('getPrinterCapabilities');
+      cloudPrintInterface = new print_preview.CloudPrintInterfaceStub();
+
+      const model = document.createElement('print-preview-model');
+      document.body.appendChild(model);
+
+      // Create destination settings, so  that the user manager is created.
+      const destinationSettings =
+          document.createElement('print-preview-destination-settings');
+      destinationSettings.settings = model.settings;
+      destinationSettings.state = print_preview.State.READY;
+      destinationSettings.disabled = false;
+      test_util.fakeDataBind(model, destinationSettings, 'settings');
+      document.body.appendChild(destinationSettings);
+
+      // Initialize
+      destinationSettings.cloudPrintInterface = cloudPrintInterface;
+      destinationSettings.init(
+          'FooDevice' /* printerName */,
+          '' /* serializedDefaultDestinationSelectionRulesStr */,
+          [] /* userAccounts */, true /* syncAvailable */);
+      return nativeLayer.whenCalled('getPrinterCapabilities').then(() => {
+        // Retrieve a reference to dialog
+        dialog = destinationSettings.$.destinationDialog.get();
+      });
     });
 
     // Tests that the search input text field is automatically focused when the
@@ -61,7 +69,7 @@ cr.define('destination_dialog_interactive_test', function() {
       const searchInput = dialog.$.searchBox.getSearchInput();
       assertTrue(!!searchInput);
       const whenFocusDone = test_util.eventToPromise('focus', searchInput);
-      destinationStore.startLoadAllDestinations();
+      dialog.destinationStore.startLoadAllDestinations();
       dialog.show();
       return whenFocusDone;
     });
@@ -75,7 +83,7 @@ cr.define('destination_dialog_interactive_test', function() {
       const signInLink = dialog.$$('.sign-in');
       assertTrue(!!signInLink);
       const whenFocusDone = test_util.eventToPromise('focus', searchInput);
-      destinationStore.startLoadAllDestinations();
+      dialog.destinationStore.startLoadAllDestinations();
       dialog.show();
       return whenFocusDone
           .then(() => {
@@ -93,6 +101,10 @@ cr.define('destination_dialog_interactive_test', function() {
                 test_util.eventToPromise('focus', searchInput);
             signInLink.click();
             return whenSearchFocused;
+          })
+          .then(() => {
+            assertEquals('foo@chromium.org', dialog.activeUser);
+            assertEquals(1, dialog.users.length);
           });
     });
 
@@ -102,7 +114,7 @@ cr.define('destination_dialog_interactive_test', function() {
       const searchInput = dialog.$.searchBox.getSearchInput();
       assertTrue(!!searchInput);
       const whenFocusDone = test_util.eventToPromise('focus', searchInput);
-      destinationStore.startLoadAllDestinations();
+      dialog.destinationStore.startLoadAllDestinations();
       dialog.show();
       return whenFocusDone
           .then(() => {

chrome/test/data/webui/print_preview/print_preview_interactive_ui_tests.js

@@ -113,15 +113,15 @@ var PrintPreviewDestinationDialogInteractiveTest =
     class extends PrintPreviewInteractiveUITest {
   /** @override */
   get browsePreload() {
-    return 'chrome://print/ui/destination_dialog.html';
+    return 'chrome://print/ui/destination_settings.html';
   }
 
   /** @override */
   get extraLibraries() {
     return super.extraLibraries.concat([
       '//chrome/test/data/webui/settings/test_util.js',
-      '//ui/webui/resources/js/web_ui_listener_behavior.js',
       '../test_browser_proxy.js',
+      'cloud_print_interface_stub.js',
       'native_layer_stub.js',
       'print_preview_test_utils.js',
       'destination_dialog_interactive_test.js',