Print Preview: Change getPrinters to cr.sendWithPromise

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

Index: chrome/test/data/webui/print_preview/print_preview_tests.js
diff --git a/chrome/test/data/webui/print_preview/print_preview_tests.js b/chrome/test/data/webui/print_preview/print_preview_tests.js
index c7277f5be004f6d0e9cddcf915b432df37ad29ac..f36570b56dac45a94eefe01322fed626eeb93b8c 100644
--- a/chrome/test/data/webui/print_preview/print_preview_tests.js
+++ b/chrome/test/data/webui/print_preview/print_preview_tests.js
@@ -32,8 +32,7 @@ cr.define('print_preview_test', function() {
 
   /**
    * Initialize print preview with the initial settings currently stored in
-   * |initialSettings|. Creates |printPreview| if it does not
-   * already exist.
+   * |initialSettings|.
    */
   function setInitialSettings() {
     nativeLayer.setInitialSettings(initialSettings);
@@ -41,14 +40,12 @@ cr.define('print_preview_test', function() {
   }
 
   /**
-   * Dispatch the LOCAL_DESTINATIONS_SET event. This call is NOT async and will
-   * happen in the same thread.
+   * Start loading the local destinations using the destination infos currently
+   * stored in |localDestinationInfos|.
    */
   function setLocalDestinations() {
-    var localDestsSetEvent =
-        new Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
-    localDestsSetEvent.destinationInfos = localDestinationInfos;
-    nativeLayer.getEventTarget().dispatchEvent(localDestsSetEvent);
+    nativeLayer.setLocalDestinations(localDestinationInfos);
+    printPreview.destinationStore_.startLoadLocalDestinations();
   }
 
   /**
@@ -201,11 +198,13 @@ cr.define('print_preview_test', function() {
    */
   function setupAdvancedSettingsTest(device) {
     setLocalDestinations();
-    setCapabilities(device);
-    expandMoreSettings();
+    return nativeLayer.whenCalled('getPrinters').then(function() {
+      setCapabilities(device);
+      expandMoreSettings();
 
-    // Check that the advanced options settings section is visible.
-    checkSectionVisible($('advanced-options-settings'), true);
+      // Check that the advanced options settings section is visible.
+      checkSectionVisible($('advanced-options-settings'), true);
+    });
   }
 
   /** @return {boolean} */
@@ -263,33 +262,34 @@ cr.define('print_preview_test', function() {
     // Test some basic assumptions about the print preview WebUI.
     test('PrinterList', function() {
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            var recentList =
-                $('destination-search').querySelector('.recent-list ul');
-            var localList =
-                $('destination-search').querySelector('.local-list ul');
-            assertNotEquals(null, recentList);
-            assertEquals(1, recentList.childNodes.length);
-            assertEquals('FooName',
-                         recentList.childNodes.item(0).querySelector(
-                             '.destination-list-item-name').textContent);
-            assertNotEquals(null, localList);
-            assertEquals(3, localList.childNodes.length);
-            assertEquals(
-                'Save as PDF',
-                localList.childNodes.item(PDF_INDEX).
-                querySelector('.destination-list-item-name').textContent);
-            assertEquals(
-                'FooName',
-                localList.childNodes.item(FOO_INDEX).
-                querySelector('.destination-list-item-name').textContent);
-            assertEquals(
-                'BarName',
-                localList.childNodes.item(BAR_INDEX).
-                querySelector('.destination-list-item-name').textContent);
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {

[dpapad, 2017/06/01 19:01:53]

No need for the extra nesting, it can be replaced by chaining, which is always
preferred over nesting.

return nativeLayer.whenCalled('getInitialSettings').then(function() {
  setLocalDestinations();
  return nativeLayer.whenCalled('getPrinters');
}).then(function() {
  var recentList = ...;
  ...
});

[rbpotter, 2017/06/01 22:31:12]

Mostly replaced instances of this sequence with a
helper function, since it is repeated in almost all
of the tests. Thanks for the recommendation though;
will use chaining in future instead of nesting.

[dpapad, 2017/06/01 23:02:33]

We should do this for this CL. Nesting and chaining have slightly different
behavior when it comes to errors. The way the code is now an error in the inner
callback will not be surfaced correctly to the outer. You can verify this with a
minimal example in the dev console.

Try the following:
function foo() {
  return Promise.resolve('foo').then(function() {
    Promise.reject('error');
  });
}
foo().then(function() {console.log('resolved success')}, function(e) {
console.log('resolved with error')})

It erroneously thinks that the outer Promise succeeded.

Now try the following

function foo() {
  return Promise.resolve('foo').then(function() {
    return Promise.reject('error');
  });
}
foo().then(function() {console.log('resolved success')}, function(e) {
console.log('resolved with error')})

It correctly detects that foo() failed. In our case, Mocha relies on the Promise
we return from the test to detect whether the test succeeded or failed. If we
don't get that Promise to properly reject for any inner error, we are breaking
Mocha's contract.

+          var recentList =
+              $('destination-search').querySelector('.recent-list ul');
+          var localList =
+              $('destination-search').querySelector('.local-list ul');
+          assertNotEquals(null, recentList);
+          assertEquals(1, recentList.childNodes.length);
+          assertEquals('FooName',
+                       recentList.childNodes.item(0).querySelector(
+                           '.destination-list-item-name').textContent);
+          assertNotEquals(null, localList);
+          assertEquals(3, localList.childNodes.length);
+          assertEquals(
+              'Save as PDF',
+              localList.childNodes.item(PDF_INDEX).
+              querySelector('.destination-list-item-name').textContent);
+          assertEquals(
+              'FooName',
+              localList.childNodes.item(FOO_INDEX).
+              querySelector('.destination-list-item-name').textContent);
+          assertEquals(
+              'BarName',
+              localList.childNodes.item(BAR_INDEX).
+              querySelector('.destination-list-item-name').textContent);
+        });
+      });
     });
 
     // Test that the printer list is structured correctly after calling
@@ -297,57 +297,57 @@ cr.define('print_preview_test', function() {
     test('PrinterListCloudEmpty', function() {
       setInitialSettings();
 
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-
-            var cloudPrintEnableEvent = new Event(
-                print_preview.NativeLayer.EventType.CLOUD_PRINT_ENABLE);
-            cloudPrintEnableEvent.baseCloudPrintUrl = 'cloudprint url';
-            nativeLayer.getEventTarget().dispatchEvent(
-                cloudPrintEnableEvent);
-
-            var searchDoneEvent =
-                new Event(cloudprint.CloudPrintInterfaceEventType.SEARCH_DONE);
-            searchDoneEvent.printers = [];
-            searchDoneEvent.isRecent = true;
-            searchDoneEvent.email = 'foo@chromium.org';
-            printPreview.cloudPrintInterface_.dispatchEvent(searchDoneEvent);
-
-            var recentList =
-                $('destination-search').querySelector('.recent-list ul');
-            var localList =
-                $('destination-search').querySelector('.local-list ul');
-            var cloudList =
-                $('destination-search').querySelector('.cloud-list ul');
-
-            assertNotEquals(null, recentList);
-            assertEquals(1, recentList.childNodes.length);
-            assertEquals('FooName',
-                         recentList.childNodes.item(0).
-                             querySelector('.destination-list-item-name').
-                             textContent);
-
-            assertNotEquals(null, localList);
-            assertEquals(3, localList.childNodes.length);
-            assertEquals('Save as PDF',
-                         localList.childNodes.item(PDF_INDEX).
-                             querySelector('.destination-list-item-name').
-                             textContent);
-            assertEquals('FooName',
-                         localList.childNodes.
-                             item(FOO_INDEX).
-                             querySelector('.destination-list-item-name').
-                             textContent);
-            assertEquals('BarName',
-                         localList.childNodes.
-                             item(BAR_INDEX).
-                             querySelector('.destination-list-item-name').
-                             textContent);
-
-            assertNotEquals(null, cloudList);
-            assertEquals(0, cloudList.childNodes.length);
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var cloudPrintEnableEvent = new Event(
+              print_preview.NativeLayer.EventType.CLOUD_PRINT_ENABLE);
+          cloudPrintEnableEvent.baseCloudPrintUrl = 'cloudprint url';
+          nativeLayer.getEventTarget().dispatchEvent(
+              cloudPrintEnableEvent);
+
+          var searchDoneEvent =
+              new Event(cloudprint.CloudPrintInterfaceEventType.SEARCH_DONE);
+          searchDoneEvent.printers = [];
+          searchDoneEvent.isRecent = true;
+          searchDoneEvent.email = 'foo@chromium.org';
+          printPreview.cloudPrintInterface_.dispatchEvent(searchDoneEvent);
+
+          var recentList =
+              $('destination-search').querySelector('.recent-list ul');
+          var localList =
+              $('destination-search').querySelector('.local-list ul');
+          var cloudList =
+              $('destination-search').querySelector('.cloud-list ul');
+
+          assertNotEquals(null, recentList);
+          assertEquals(1, recentList.childNodes.length);
+          assertEquals('FooName',
+                       recentList.childNodes.item(0).
+                           querySelector('.destination-list-item-name').
+                           textContent);
+
+          assertNotEquals(null, localList);
+          assertEquals(3, localList.childNodes.length);
+          assertEquals('Save as PDF',
+                       localList.childNodes.item(PDF_INDEX).
+                           querySelector('.destination-list-item-name').
+                           textContent);
+          assertEquals('FooName',
+                       localList.childNodes.
+                           item(FOO_INDEX).
+                           querySelector('.destination-list-item-name').
+                           textContent);
+          assertEquals('BarName',
+                       localList.childNodes.
+                           item(BAR_INDEX).
+                           querySelector('.destination-list-item-name').
+                           textContent);
+
+          assertNotEquals(null, cloudList);
+          assertEquals(0, cloudList.childNodes.length);
+        });
+      });
     });
 
     // Test restore settings with one destination.
@@ -446,14 +446,16 @@ cr.define('print_preview_test', function() {
       // It also makes sure these rules do override system default destination.
       initialSettings.serializedDefaultDestinationSelectionRulesStr_ =
           JSON.stringify({namePattern: '.*Bar.*'});
+      // Set this early as the app state selection string will trigger a load
+      // of local destinations on initialization.
+      nativeLayer.setLocalDestinations(localDestinationInfos);
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            assertEquals(
-                'BarDevice',
-                printPreview.destinationStore_.selectedDestination.id);
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          assertEquals('BarDevice',
+                       printPreview.destinationStore_.selectedDestination.id);
+        });
+      });
     });
 
     test('SystemDialogLinkIsHiddenInAppKioskMode', function() {
@@ -476,22 +478,23 @@ cr.define('print_preview_test', function() {
       checkSectionVisible($('copies-settings'), false);
 
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            var device = getCddTemplate('FooDevice');
-            device.capabilities.printer.color = {
-              option: [{is_default: true, type: 'STANDARD_COLOR'}]
-            };
-            delete device.capabilities.printer.copies;
-            setCapabilities(device);
-
-            checkSectionVisible($('layout-settings'), true);
-            checkSectionVisible($('color-settings'), false);
-            checkSectionVisible($('copies-settings'), false);
-
-            return whenAnimationDone('other-options-collapsible');
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            option: [{is_default: true, type: 'STANDARD_COLOR'}]
+          };
+          delete device.capabilities.printer.copies;
+          setCapabilities(device);
+
+          checkSectionVisible($('layout-settings'), true);
+          checkSectionVisible($('color-settings'), false);
+          checkSectionVisible($('copies-settings'), false);
+
+          return whenAnimationDone('other-options-collapsible');
+        });
+      });
     });
 
     // When the source is 'PDF' and 'Save as PDF' option is selected, we hide
@@ -533,10 +536,9 @@ cr.define('print_preview_test', function() {
           }
         };
         setCapabilities(device);
-
         var otherOptions = $('other-options-settings');
-        // If rasterization is an option, other options should be visible. If
-        // not, there should be no available other options.
+        // If rasterization is an option, other options should be visible.
+        // If not, there should be no available other options.
         checkSectionVisible(otherOptions, isPrintAsImageEnabled());
         if (isPrintAsImageEnabled()) {
           checkElementDisplayed(
@@ -555,34 +557,36 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
-
-        var otherOptions = $('other-options-settings');
-        var fitToPage = otherOptions.querySelector('#fit-to-page-container');
-        var rasterize;
-        if (isPrintAsImageEnabled())
-          rasterize = otherOptions.querySelector('#rasterize-container');
-        var mediaSize = $('media-size-settings');
-        var scalingSettings = $('scaling-settings');
-
-        // Check that options are collapsed (section is visible, because duplex
-        // is available).
-        checkSectionVisible(otherOptions, true);
-        checkElementDisplayed(fitToPage, false);
-        if (isPrintAsImageEnabled())
-          checkElementDisplayed(rasterize, false);
-        checkSectionVisible(mediaSize, false);
-        checkSectionVisible(scalingSettings, false);
-
-        expandMoreSettings();
-
-        checkElementDisplayed(fitToPage, false);
-        if (isPrintAsImageEnabled())
-          checkElementDisplayed(rasterize, false);
-        checkSectionVisible(mediaSize, true);
-        checkSectionVisible(scalingSettings, true);
-
-        return whenAnimationDone('more-settings');
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          var otherOptions = $('other-options-settings');
+          var fitToPage = otherOptions.querySelector('#fit-to-page-container');
+          var rasterize;
+          if (isPrintAsImageEnabled())
+            rasterize = otherOptions.querySelector('#rasterize-container');
+          var mediaSize = $('media-size-settings');
+          var scalingSettings = $('scaling-settings');
+
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(fitToPage, false);
+          if (isPrintAsImageEnabled())
+            checkElementDisplayed(rasterize, false);
+          checkSectionVisible(mediaSize, false);
+          checkSectionVisible(scalingSettings, false);
+
+          expandMoreSettings();
+
+          checkElementDisplayed(fitToPage, false);
+          if (isPrintAsImageEnabled())
+            checkElementDisplayed(rasterize, false);
+          checkSectionVisible(mediaSize, true);
+          checkSectionVisible(scalingSettings, true);
+
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -591,38 +595,39 @@ cr.define('print_preview_test', function() {
     test('SourceIsPDFCapabilities', function() {
       initialSettings.isDocumentModifiable_ = false;
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            setCapabilities(getCddTemplate('FooDevice'));
-
-            var otherOptions = $('other-options-settings');
-            var scalingSettings = $('scaling-settings');
-            var fitToPageContainer =
-                otherOptions.querySelector('#fit-to-page-container');
-            var rasterizeContainer;
-            if (isPrintAsImageEnabled()) {
-              rasterizeContainer =
-                otherOptions.querySelector('#rasterize-container');
-            }
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          var otherOptions = $('other-options-settings');
+          var scalingSettings = $('scaling-settings');
+          var fitToPageContainer =
+              otherOptions.querySelector('#fit-to-page-container');
+          var rasterizeContainer;
+          if (isPrintAsImageEnabled()) {
+            rasterizeContainer =
+              otherOptions.querySelector('#rasterize-container');
+          }
 
-            checkSectionVisible(otherOptions, true);
-            checkElementDisplayed(fitToPageContainer, true);
-            if (isPrintAsImageEnabled())
-              checkElementDisplayed(rasterizeContainer, false);
-            expectTrue(
-                fitToPageContainer.querySelector('.checkbox').checked);
-            expandMoreSettings();
-            if (isPrintAsImageEnabled()) {
-              checkElementDisplayed(rasterizeContainer, true);
-              expectFalse(
-                  rasterizeContainer.querySelector('.checkbox').checked);
-            }
-            checkSectionVisible($('media-size-settings'), true);
-            checkSectionVisible(scalingSettings, true);
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(fitToPageContainer, true);
+          if (isPrintAsImageEnabled())
+            checkElementDisplayed(rasterizeContainer, false);
+          expectTrue(
+              fitToPageContainer.querySelector('.checkbox').checked);
+          expandMoreSettings();
+          if (isPrintAsImageEnabled()) {
+            checkElementDisplayed(rasterizeContainer, true);
+            expectFalse(
+                rasterizeContainer.querySelector('.checkbox').checked);
+          }
+          checkSectionVisible($('media-size-settings'), true);
+          checkSectionVisible(scalingSettings, true);
 
-            return whenAnimationDone('other-options-collapsible');
-          });
+          return whenAnimationDone('other-options-collapsible');
+        });
+      });
     });
 
     // When the source is 'PDF', depending on the selected destination printer,
@@ -630,40 +635,41 @@ cr.define('print_preview_test', function() {
     test('ScalingUnchecksFitToPage', function() {
       initialSettings.isDocumentModifiable_ = false;
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            setCapabilities(getCddTemplate('FooDevice'));
-
-            var otherOptions = $('other-options-settings');
-            var scalingSettings = $('scaling-settings');
-
-            checkSectionVisible(otherOptions, true);
-            var fitToPageContainer =
-                otherOptions.querySelector('#fit-to-page-container');
-            checkElementDisplayed(fitToPageContainer, true);
-            expectTrue(
-                fitToPageContainer.querySelector('.checkbox').checked);
-            expandMoreSettings();
-            checkSectionVisible($('media-size-settings'), true);
-            checkSectionVisible(scalingSettings, true);
-
-            // Change scaling input
-            var scalingInput = scalingSettings.querySelector('.user-value');
-            expectEquals('100', scalingInput.value);
-            scalingInput.stepUp(5);
-            expectEquals('105', scalingInput.value);
-
-            // Trigger the event
-            var enterEvent = document.createEvent('Event');
-            enterEvent.initEvent('keydown');
-            enterEvent.keyCode = 'Enter';
-            scalingInput.dispatchEvent(enterEvent);
-            expectFalse(
-                fitToPageContainer.querySelector('.checkbox').checked);
-
-            return whenAnimationDone('other-options-collapsible');
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          var otherOptions = $('other-options-settings');
+          var scalingSettings = $('scaling-settings');
+
+          checkSectionVisible(otherOptions, true);
+          var fitToPageContainer =
+              otherOptions.querySelector('#fit-to-page-container');
+          checkElementDisplayed(fitToPageContainer, true);
+          expectTrue(
+              fitToPageContainer.querySelector('.checkbox').checked);
+          expandMoreSettings();
+          checkSectionVisible($('media-size-settings'), true);
+          checkSectionVisible(scalingSettings, true);
+
+          // Change scaling input
+          var scalingInput = scalingSettings.querySelector('.user-value');
+          expectEquals('100', scalingInput.value);
+          scalingInput.stepUp(5);
+          expectEquals('105', scalingInput.value);
+
+          // Trigger the event
+          var enterEvent = document.createEvent('Event');
+          enterEvent.initEvent('keydown');
+          enterEvent.keyCode = 'Enter';
+          scalingInput.dispatchEvent(enterEvent);
+          expectFalse(
+              fitToPageContainer.querySelector('.checkbox').checked);
+
+          return whenAnimationDone('other-options-collapsible');
+        });
+      });
     });
 
     // When the number of copies print preset is set for source 'PDF', we update
@@ -673,26 +679,29 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
-
-        // Indicate that the number of copies print preset is set for source
-        // PDF.
-        var printPresetOptions = {
-          disableScaling: true,
-          copies: 2
-        };
-        var printPresetOptionsEvent = new Event(
-            print_preview.NativeLayer.EventType.PRINT_PRESET_OPTIONS);
-        printPresetOptionsEvent.optionsFromDocument = printPresetOptions;
-        nativeLayer.getEventTarget().
-            dispatchEvent(printPresetOptionsEvent);
-
-        checkSectionVisible($('copies-settings'), true);
-        expectEquals(
-            printPresetOptions.copies,
-            parseInt($('copies-settings').querySelector('.user-value').value));
-
-        return whenAnimationDone('other-options-collapsible');
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          // Indicate that the number of copies print preset is set for source
+          // PDF.
+          var printPresetOptions = {
+            disableScaling: true,
+            copies: 2
+          };
+          var printPresetOptionsEvent = new Event(
+              print_preview.NativeLayer.EventType.PRINT_PRESET_OPTIONS);
+          printPresetOptionsEvent.optionsFromDocument = printPresetOptions;
+          nativeLayer.getEventTarget().
+              dispatchEvent(printPresetOptionsEvent);
+
+          checkSectionVisible($('copies-settings'), true);
+          expectEquals(
+              printPresetOptions.copies,
+              parseInt($('copies-settings').
+                  querySelector('.user-value').value));
+
+          return whenAnimationDone('other-options-collapsible');
+        });
       });
     });
 
@@ -702,86 +711,89 @@ cr.define('print_preview_test', function() {
       initialSettings.isDocumentModifiable_ = false;
       setInitialSettings();
 
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            setCapabilities(getCddTemplate('FooDevice'));
-
-            // Indicate that the duplex print preset is set to 'long edge' for
-            // source PDF.
-            var printPresetOptions = {
-              duplex: 1
-            };
-            var printPresetOptionsEvent = new Event(
-                print_preview.NativeLayer.EventType.PRINT_PRESET_OPTIONS);
-            printPresetOptionsEvent.optionsFromDocument = printPresetOptions;
-            nativeLayer.getEventTarget().
-                dispatchEvent(printPresetOptionsEvent);
-
-            var otherOptions = $('other-options-settings');
-            checkSectionVisible(otherOptions, true);
-            var duplexContainer =
-                otherOptions.querySelector('#duplex-container');
-            checkElementDisplayed(duplexContainer, true);
-            expectTrue(duplexContainer.querySelector('.checkbox').checked);
-
-            return whenAnimationDone('other-options-collapsible');
-          });
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          // Indicate that the duplex print preset is set to 'long edge' for
+          // source PDF.
+          var printPresetOptions = {
+            duplex: 1
+          };
+          var printPresetOptionsEvent = new Event(
+              print_preview.NativeLayer.EventType.PRINT_PRESET_OPTIONS);
+          printPresetOptionsEvent.optionsFromDocument = printPresetOptions;
+          nativeLayer.getEventTarget().
+              dispatchEvent(printPresetOptionsEvent);
+
+          var otherOptions = $('other-options-settings');
+          checkSectionVisible(otherOptions, true);
+          var duplexContainer =
+              otherOptions.querySelector('#duplex-container');
+          checkElementDisplayed(duplexContainer, true);
+          expectTrue(duplexContainer.querySelector('.checkbox').checked);
+
+          return whenAnimationDone('other-options-collapsible');
+        });
+      });
     });
 
     // Make sure that custom margins controls are properly set up.
     test('CustomMarginsControlsCheck', function() {
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            setCapabilities(getCddTemplate('FooDevice'));
-
-            printPreview.printTicketStore_.marginsType.updateValue(
-                print_preview.ticket_items.MarginsTypeValue.CUSTOM);
-
-            ['left', 'top', 'right', 'bottom'].forEach(function(margin) {
-              var control =
-                  $('preview-area').querySelector('.margin-control-' + margin);
-              assertNotEquals(null, control);
-              var input = control.querySelector('.margin-control-textbox');
-              assertTrue(input.hasAttribute('aria-label'));
-              assertNotEquals('undefined', input.getAttribute('aria-label'));
-            });
-            return whenAnimationDone('more-settings');
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.CUSTOM);
+
+          ['left', 'top', 'right', 'bottom'].forEach(function(margin) {
+            var control =
+                $('preview-area').querySelector('.margin-control-' + margin);
+            assertNotEquals(null, control);
+            var input = control.querySelector('.margin-control-textbox');
+            assertTrue(input.hasAttribute('aria-label'));
+            assertNotEquals('undefined', input.getAttribute('aria-label'));
           });
+          return whenAnimationDone('more-settings');
+        });
+      });
     });
 
     // Page layout has zero margins. Hide header and footer option.
     test('PageLayoutHasNoMarginsHideHeaderFooter', function() {
       setInitialSettings();
-      return nativeLayer.whenCalled('getInitialSettings').then(
-          function() {
-            setLocalDestinations();
-            setCapabilities(getCddTemplate('FooDevice'));
+      return nativeLayer.whenCalled('getInitialSettings').then(function() {
+        setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-            var otherOptions = $('other-options-settings');
-            var headerFooter =
-                otherOptions.querySelector('#header-footer-container');
+          var otherOptions = $('other-options-settings');
+          var headerFooter =
+              otherOptions.querySelector('#header-footer-container');
 
-            // Check that options are collapsed (section is visible, because
-            // duplex is available).
-            checkSectionVisible(otherOptions, true);
-            checkElementDisplayed(headerFooter, false);
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(headerFooter, false);
 
-            expandMoreSettings();
+          expandMoreSettings();
 
-            checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-            printPreview.printTicketStore_.marginsType.updateValue(
-                print_preview.ticket_items.MarginsTypeValue.CUSTOM);
-            printPreview.printTicketStore_.customMargins.updateValue(
-                new print_preview.Margins(0, 0, 0, 0));
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.CUSTOM);
+          printPreview.printTicketStore_.customMargins.updateValue(
+              new print_preview.Margins(0, 0, 0, 0));
 
-            checkElementDisplayed(headerFooter, false);
+          checkElementDisplayed(headerFooter, false);
 
-            return whenAnimationDone('more-settings');
-          });
+          return whenAnimationDone('more-settings');
+        });
+      });
     });
 
     // Page layout has half-inch margins. Show header and footer option.
@@ -789,62 +801,65 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-        var otherOptions = $('other-options-settings');
-        var headerFooter =
-            otherOptions.querySelector('#header-footer-container');
+          var otherOptions = $('other-options-settings');
+          var headerFooter =
+              otherOptions.querySelector('#header-footer-container');
 
-        // Check that options are collapsed (section is visible, because
-        // duplex is available).
-        checkSectionVisible(otherOptions, true);
-        checkElementDisplayed(headerFooter, false);
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(headerFooter, false);
 
-        expandMoreSettings();
+          expandMoreSettings();
 
-        checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-        printPreview.printTicketStore_.marginsType.updateValue(
-            print_preview.ticket_items.MarginsTypeValue.CUSTOM);
-        printPreview.printTicketStore_.customMargins.updateValue(
-            new print_preview.Margins(36, 36, 36, 36));
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.CUSTOM);
+          printPreview.printTicketStore_.customMargins.updateValue(
+              new print_preview.Margins(36, 36, 36, 36));
 
-        checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
-
     // Page layout has zero top and bottom margins. Hide header and footer
     // option.
     test('ZeroTopAndBottomMarginsHideHeaderFooter', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-        var otherOptions = $('other-options-settings');
-        var headerFooter =
-            otherOptions.querySelector('#header-footer-container');
+          var otherOptions = $('other-options-settings');
+          var headerFooter =
+              otherOptions.querySelector('#header-footer-container');
 
-        // Check that options are collapsed (section is visible, because duplex
-        // is available).
-        checkSectionVisible(otherOptions, true);
-        checkElementDisplayed(headerFooter, false);
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(headerFooter, false);
 
-        expandMoreSettings();
+          expandMoreSettings();
 
-        checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-        printPreview.printTicketStore_.marginsType.updateValue(
-            print_preview.ticket_items.MarginsTypeValue.CUSTOM);
-        printPreview.printTicketStore_.customMargins.updateValue(
-            new print_preview.Margins(0, 36, 0, 36));
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.CUSTOM);
+          printPreview.printTicketStore_.customMargins.updateValue(
+              new print_preview.Margins(0, 36, 0, 36));
 
-        checkElementDisplayed(headerFooter, false);
+          checkElementDisplayed(headerFooter, false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -854,29 +869,31 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-        var otherOptions = $('other-options-settings');
-        var headerFooter =
-            otherOptions.querySelector('#header-footer-container');
+          var otherOptions = $('other-options-settings');
+          var headerFooter =
+              otherOptions.querySelector('#header-footer-container');
 
-        // Check that options are collapsed (section is visible, because duplex
-        // is available).
-        checkSectionVisible(otherOptions, true);
-        checkElementDisplayed(headerFooter, false);
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(headerFooter, false);
 
-        expandMoreSettings();
+          expandMoreSettings();
 
-        checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-        printPreview.printTicketStore_.marginsType.updateValue(
-            print_preview.ticket_items.MarginsTypeValue.CUSTOM);
-        printPreview.printTicketStore_.customMargins.updateValue(
-            new print_preview.Margins(0, 36, 36, 36));
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.CUSTOM);
+          printPreview.printTicketStore_.customMargins.updateValue(
+              new print_preview.Margins(0, 36, 36, 36));
 
-        checkElementDisplayed(headerFooter, true);
+          checkElementDisplayed(headerFooter, true);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -885,42 +902,44 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.media_size = {
-          'option': [
-            {'name': 'SmallLabel', 'width_microns': 38100,
-              'height_microns': 12700, 'is_default': false},
-            {'name': 'BigLabel', 'width_microns': 50800,
-              'height_microns': 76200, 'is_default': true}
-          ]
-        };
-        setCapabilities(device);
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.media_size = {
+            'option': [
+              {'name': 'SmallLabel', 'width_microns': 38100,
+                'height_microns': 12700, 'is_default': false},
+              {'name': 'BigLabel', 'width_microns': 50800,
+                'height_microns': 76200, 'is_default': true}
+            ]
+          };
+          setCapabilities(device);
 
-        var otherOptions = $('other-options-settings');
-        var headerFooter =
-            otherOptions.querySelector('#header-footer-container');
+          var otherOptions = $('other-options-settings');
+          var headerFooter =
+              otherOptions.querySelector('#header-footer-container');
 
-        // Check that options are collapsed (section is visible, because duplex
-        // is available).
-        checkSectionVisible(otherOptions, true);
-        checkElementDisplayed(headerFooter, false);
+          // Check that options are collapsed (section is visible, because
+          // duplex is available).
+          checkSectionVisible(otherOptions, true);
+          checkElementDisplayed(headerFooter, false);
 
-        expandMoreSettings();
+          expandMoreSettings();
 
-        // Big label should have header/footer
-        checkElementDisplayed(headerFooter, true);
+          // Big label should have header/footer
+          checkElementDisplayed(headerFooter, true);
 
-        // Small label should not
-        printPreview.printTicketStore_.mediaSize.updateValue(
-            device.capabilities.printer.media_size.option[0]);
-        checkElementDisplayed(headerFooter, false);
+          // Small label should not
+          printPreview.printTicketStore_.mediaSize.updateValue(
+              device.capabilities.printer.media_size.option[0]);
+          checkElementDisplayed(headerFooter, false);
 
-        // Oriented in landscape, there should be enough space for
-        // header/footer.
-        printPreview.printTicketStore_.landscape.updateValue(true);
-        checkElementDisplayed(headerFooter, true);
+          // Oriented in landscape, there should be enough space for
+          // header/footer.
+          printPreview.printTicketStore_.landscape.updateValue(true);
+          checkElementDisplayed(headerFooter, true);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -929,19 +948,20 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          // Only one option, standard monochrome.
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'STANDARD_MONOCHROME'}
+            ]
+          };
+          setCapabilities(device);
 
-        // Only one option, standard monochrome.
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'STANDARD_MONOCHROME'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), false);
+          checkSectionVisible($('color-settings'), false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -950,20 +970,21 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          // Only one option, standard monochrome.
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'CUSTOM_MONOCHROME',
+               'vendor_id': '42'}
+            ]
+          };
+          setCapabilities(device);
 
-        // Only one option, standard monochrome.
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'CUSTOM_MONOCHROME',
-             'vendor_id': '42'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), false);
+          checkSectionVisible($('color-settings'), false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -972,18 +993,19 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'STANDARD_COLOR'}
+            ]
+          };
+          setCapabilities(device);
 
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'STANDARD_COLOR'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), false);
+          checkSectionVisible($('color-settings'), false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -992,18 +1014,19 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'CUSTOM_COLOR', 'vendor_id': '42'}
+            ]
+          };
+          setCapabilities(device);
 
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'CUSTOM_COLOR', 'vendor_id': '42'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), false);
+          checkSectionVisible($('color-settings'), false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1013,22 +1036,24 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'type': 'STANDARD_MONOCHROME'},
+              {'is_default': true, 'type': 'STANDARD_COLOR'}
+            ]
+          };
+          setCapabilities(device);
 
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'type': 'STANDARD_MONOCHROME'},
-            {'is_default': true, 'type': 'STANDARD_COLOR'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), true);
-        expectEquals(
-            'color',
-            $('color-settings').querySelector('.color-settings-select').value);
+          checkSectionVisible($('color-settings'), true);
+          expectEquals(
+              'color',
+              $('color-settings').querySelector(
+                  '.color-settings-select').value);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1038,22 +1063,24 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'STANDARD_MONOCHROME'},
+              {'type': 'STANDARD_COLOR'}
+            ]
+          };
+          setCapabilities(device);
 
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'STANDARD_MONOCHROME'},
-            {'type': 'STANDARD_COLOR'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), true);
-        expectEquals(
-            'bw',
-            $('color-settings').querySelector('.color-settings-select').value);
+          checkSectionVisible($('color-settings'), true);
+          expectEquals(
+              'bw',
+              $('color-settings').querySelector(
+                  '.color-settings-select').value);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1063,23 +1090,24 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'type': 'CUSTOM_MONOCHROME', 'vendor_id': '42'},
+              {'is_default': true, 'type': 'CUSTOM_COLOR', 'vendor_id': '43'}
+            ]
+          };
+          setCapabilities(device);
 
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'type': 'CUSTOM_MONOCHROME', 'vendor_id': '42'},
-            {'is_default': true, 'type': 'CUSTOM_COLOR', 'vendor_id': '43'}
-          ]
-        };
-        setCapabilities(device);
-
-        checkSectionVisible($('color-settings'), true);
-        expectEquals(
-            'color',
-            $('color-settings').querySelector(
-                '.color-settings-select').value);
+          checkSectionVisible($('color-settings'), true);
+          expectEquals(
+              'color',
+              $('color-settings').querySelector(
+                  '.color-settings-select').value);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1089,15 +1117,17 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-        var otherOptions = $('other-options-settings');
-        checkSectionVisible(otherOptions, true);
-        duplexContainer = otherOptions.querySelector('#duplex-container');
-        expectFalse(duplexContainer.hidden);
-        expectFalse(duplexContainer.querySelector('.checkbox').checked);
+          var otherOptions = $('other-options-settings');
+          checkSectionVisible(otherOptions, true);
+          duplexContainer = otherOptions.querySelector('#duplex-container');
+          expectFalse(duplexContainer.hidden);
+          expectFalse(duplexContainer.querySelector('.checkbox').checked);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1107,21 +1137,23 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        var device = getCddTemplate('FooDevice');
-        delete device.capabilities.printer.duplex;
-        setCapabilities(device);
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var device = getCddTemplate('FooDevice');
+          delete device.capabilities.printer.duplex;
+          setCapabilities(device);
 
-        // Check that it is collapsed.
-        var otherOptions = $('other-options-settings');
-        checkSectionVisible(otherOptions, false);
+          // Check that it is collapsed.
+          var otherOptions = $('other-options-settings');
+          checkSectionVisible(otherOptions, false);
 
-        expandMoreSettings();
+          expandMoreSettings();
 
-        // Now it should be visible.
-        checkSectionVisible(otherOptions, true);
-        expectTrue(otherOptions.querySelector('#duplex-container').hidden);
+          // Now it should be visible.
+          checkSectionVisible(otherOptions, true);
+          expectTrue(otherOptions.querySelector('#duplex-container').hidden);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1130,32 +1162,34 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
 
-        var previewGenerator = mock(print_preview.PreviewGenerator);
-        previewArea.previewGenerator_ = previewGenerator.proxy();
+          var previewGenerator = mock(print_preview.PreviewGenerator);
+          previewArea.previewGenerator_ = previewGenerator.proxy();
 
-        // The number of settings that can change due to a change in the
-        // destination that will therefore dispatch ticket item change events.
-        previewGenerator.expects(exactly(9)).requestPreview();
+          // The number of settings that can change due to a change in the
+          // destination that will therefore dispatch ticket item change events.
+          previewGenerator.expects(exactly(9)).requestPreview();
 
-        var barDestination =
-            printPreview.destinationStore_.destinations().find(
-                function(d) {
-                  return d.id == 'BarDevice';
-                });
+          var barDestination =
+              printPreview.destinationStore_.destinations().find(
+                  function(d) {
+                    return d.id == 'BarDevice';
+                  });
 
-        printPreview.destinationStore_.selectDestination(barDestination);
+          printPreview.destinationStore_.selectDestination(barDestination);
 
-        var device = getCddTemplate('BarDevice');
-        device.capabilities.printer.color = {
-          'option': [
-            {'is_default': true, 'type': 'STANDARD_MONOCHROME'}
-          ]
-        };
-        setCapabilities(device);
+          var device = getCddTemplate('BarDevice');
+          device.capabilities.printer.color = {
+            'option': [
+              {'is_default': true, 'type': 'STANDARD_MONOCHROME'}
+            ]
+          };
+          setCapabilities(device);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1191,48 +1225,49 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          var customLocalizedMediaName = 'Vendor defined localized media name';
+          var customMediaName = 'Vendor defined media name';
 
-        var customLocalizedMediaName = 'Vendor defined localized media name';
-        var customMediaName = 'Vendor defined media name';
-
-        var device = getCddTemplate('FooDevice');
-        device.capabilities.printer.media_size = {
-          option: [
-            { name: 'CUSTOM',
-              width_microns: 15900,
-              height_microns: 79400,
-              is_default: true,
-              custom_display_name_localized: [
-                { locale: navigator.language,
-                  value: customLocalizedMediaName
-                }
-              ]
-            },
-            { name: 'CUSTOM',
-              width_microns: 15900,
-              height_microns: 79400,
-              custom_display_name: customMediaName
-            }
-          ]
-        };
+          var device = getCddTemplate('FooDevice');
+          device.capabilities.printer.media_size = {
+            option: [
+              { name: 'CUSTOM',
+                width_microns: 15900,
+                height_microns: 79400,
+                is_default: true,
+                custom_display_name_localized: [
+                  { locale: navigator.language,
+                    value: customLocalizedMediaName
+                  }
+                ]
+              },
+              { name: 'CUSTOM',
+                width_microns: 15900,
+                height_microns: 79400,
+                custom_display_name: customMediaName
+              }
+            ]
+          };
 
-        setCapabilities(device);
+          setCapabilities(device);
+
+          expandMoreSettings();
+
+          checkSectionVisible($('media-size-settings'), true);
+          var mediaSelect =
+              $('media-size-settings').querySelector('.settings-select');
+          // Check the default media item.
+          expectEquals(
+              customLocalizedMediaName,
+              mediaSelect.options[mediaSelect.selectedIndex].text);
+          // Check the other media item.
+          expectEquals(
+              customMediaName,
+              mediaSelect.options[mediaSelect.selectedIndex == 0 ? 1 : 0].text);
 
-        expandMoreSettings();
-
-        checkSectionVisible($('media-size-settings'), true);
-        var mediaSelect =
-            $('media-size-settings').querySelector('.settings-select');
-        // Check the default media item.
-        expectEquals(
-            customLocalizedMediaName,
-            mediaSelect.options[mediaSelect.selectedIndex].text);
-        // Check the other media item.
-        expectEquals(
-            customMediaName,
-            mediaSelect.options[mediaSelect.selectedIndex == 0 ? 1 : 0].text);
-
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1242,20 +1277,21 @@ cr.define('print_preview_test', function() {
       var device = getCddTemplateWithAdvancedSettings('FooDevice');
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
-        setupAdvancedSettingsTest(device);
+        return setupAdvancedSettingsTest(device).then(function() {
 
-        // Open the advanced settings overlay.
-        openAdvancedSettings();
+          // Open the advanced settings overlay.
+          openAdvancedSettings();
 
-        // Check that advanced settings close button is now visible,
-        // but not the search box (only 1 capability).
-        var advancedSettingsCloseButton = $('advanced-settings').
-              querySelector('.close-button');
-        checkElementDisplayed(advancedSettingsCloseButton, true);
-        checkElementDisplayed($('advanced-settings').
-             querySelector('.search-box-area'), false);
+          // Check that advanced settings close button is now visible,
+          // but not the search box (only 1 capability).
+          var advancedSettingsCloseButton = $('advanced-settings').
+                querySelector('.close-button');
+          checkElementDisplayed(advancedSettingsCloseButton, true);
+          checkElementDisplayed($('advanced-settings').
+               querySelector('.search-box-area'), false);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1279,20 +1315,20 @@ cr.define('print_preview_test', function() {
       });
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
-        setupAdvancedSettingsTest(device);
-
-        // Open the advanced settings overlay.
-        openAdvancedSettings();
+        return setupAdvancedSettingsTest(device).then(function() {
+          // Open the advanced settings overlay.
+          openAdvancedSettings();
 
-        // Check advanced settings is visible and that the search box now
-        // appears.
-        var advancedSettingsCloseButton = $('advanced-settings').
-            querySelector('.close-button');
-        checkElementDisplayed(advancedSettingsCloseButton, true);
-        checkElementDisplayed($('advanced-settings').
-            querySelector('.search-box-area'), true);
+          // Check advanced settings is visible and that the search box now
+          // appears.
+          var advancedSettingsCloseButton = $('advanced-settings').
+              querySelector('.close-button');
+          checkElementDisplayed(advancedSettingsCloseButton, true);
+          checkElementDisplayed($('advanced-settings').
+              querySelector('.search-box-area'), true);
 
-        return whenAnimationDone('more-settings');
+          return whenAnimationDone('more-settings');
+        });
       });
     });
 
@@ -1340,62 +1376,67 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
-
-        // Manually enable the print header. This is needed since there is no
-        // plugin during test, so it will be set as disabled normally.
-        printPreview.printHeader_.isEnabled = true;
-
-        // There will be an error message in the preview area since the plugin
-        // is not running. However, it should not be the invalid settings error.
-        var previewAreaEl = $('preview-area');
-        var customMessageEl =
-            previewAreaEl.
-            getElementsByClassName('preview-area-custom-message')[0];
-        expectFalse(customMessageEl.hidden);
-        var expectedMessageStart = 'The selected printer is not available or '
-            + 'not installed correctly.'
-        expectFalse(customMessageEl.textContent.includes(expectedMessageStart));
-
-        // Verify that the print button is enabled.
-        var printHeader = $('print-header');
-        var printButton = printHeader.querySelector('button.print');
-        checkElementDisplayed(printButton, true);
-        expectFalse(printButton.disabled);
-
-        // Report invalid settings error.
-        var invalidSettingsEvent =
-            new Event(print_preview.NativeLayer.EventType.SETTINGS_INVALID);
-        nativeLayer.getEventTarget().dispatchEvent(invalidSettingsEvent);
-
-        // Should be in an error state, print button disabled, invalid custom
-        // error message shown.
-        expectFalse(customMessageEl.hidden);
-        expectTrue(customMessageEl.textContent.includes(expectedMessageStart));
-        expectTrue(printButton.disabled);
-
-        // Select a new destination
-        var barDestination =
-            printPreview.destinationStore_.destinations().find(
-                function(d) {
-                  return d.id == 'BarDevice';
-                });
-
-        printPreview.destinationStore_.selectDestination(barDestination);
-
-        // Dispatch events indicating capabilities were fetched and new preview
-        // has loaded.
-        setCapabilities(getCddTemplate('BarDevice'));
-        var previewDoneEvent = new Event(
-            print_preview.PreviewArea.EventType.PREVIEW_GENERATION_DONE);
-        previewArea.dispatchEvent(previewDoneEvent);
-
-        // Has active print button and successfully 'prints', indicating
-        // recovery from error state.
-        expectFalse(printButton.disabled);
-        expectFalse(nativeLayer.isPrintStarted());
-        printButton.click();
-        expectTrue(nativeLayer.isPrintStarted());
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          // Manually enable the print header. This is needed since there is no
+          // plugin during test, so it will be set as disabled normally.
+          printPreview.printHeader_.isEnabled = true;
+
+          // There will be an error message in the preview area since the plugin
+          // is not running. However, it should not be the invalid settings
+          // error.
+          var previewAreaEl = $('preview-area');
+          var customMessageEl =
+              previewAreaEl.
+              getElementsByClassName('preview-area-custom-message')[0];
+          expectFalse(customMessageEl.hidden);
+          var expectedMessageStart = 'The selected printer is not available or '
+              + 'not installed correctly.'
+          expectFalse(customMessageEl.textContent.includes(
+              expectedMessageStart));
+
+          // Verify that the print button is enabled.
+          var printHeader = $('print-header');
+          var printButton = printHeader.querySelector('button.print');
+          checkElementDisplayed(printButton, true);
+          expectFalse(printButton.disabled);
+
+          // Report invalid settings error.
+          var invalidSettingsEvent =
+              new Event(print_preview.NativeLayer.EventType.SETTINGS_INVALID);
+          nativeLayer.getEventTarget().dispatchEvent(invalidSettingsEvent);
+
+          // Should be in an error state, print button disabled, invalid custom
+          // error message shown.
+          expectFalse(customMessageEl.hidden);
+          expectTrue(customMessageEl.textContent.includes(
+              expectedMessageStart));
+          expectTrue(printButton.disabled);
+
+          // Select a new destination
+          var barDestination =
+              printPreview.destinationStore_.destinations().find(
+                  function(d) {
+                    return d.id == 'BarDevice';
+                  });
+
+          printPreview.destinationStore_.selectDestination(barDestination);
+
+          // Dispatch events indicating capabilities were fetched and new
+          // preview has loaded.
+          setCapabilities(getCddTemplate('BarDevice'));
+          var previewDoneEvent = new Event(
+              print_preview.PreviewArea.EventType.PREVIEW_GENERATION_DONE);
+          previewArea.dispatchEvent(previewDoneEvent);
+
+          // Has active print button and successfully 'prints', indicating
+          // recovery from error state.
+          expectFalse(printButton.disabled);
+          expectFalse(nativeLayer.isPrintStarted());
+          printButton.click();
+          expectTrue(nativeLayer.isPrintStarted());
+        });
       });
     });
 
@@ -1411,20 +1452,22 @@ cr.define('print_preview_test', function() {
       setInitialSettings();
       return nativeLayer.whenCalled('getInitialSettings').then(function() {
         setLocalDestinations();
-        setCapabilities(getCddTemplate('FooDevice'));
-
-        // The first request should generate draft because there was no
-        // previous print preview draft.
-        expectTrue(nativeLayer.generateDraft());
-
-        // Change the page range - no new draft needed.
-        printPreview.printTicketStore_.pageRange.updateValue('2');
-        expectFalse(nativeLayer.generateDraft());
-
-        // Change the margin type - need to regenerate again.
-        printPreview.printTicketStore_.marginsType.updateValue(
-            print_preview.ticket_items.MarginsTypeValue.NO_MARGINS);
-        expectTrue(nativeLayer.generateDraft());
+        return nativeLayer.whenCalled('getPrinters').then(function() {
+          setCapabilities(getCddTemplate('FooDevice'));
+
+          // The first request should generate draft because there was no
+          // previous print preview draft.
+          expectTrue(nativeLayer.generateDraft());
+
+          // Change the page range - no new draft needed.
+          printPreview.printTicketStore_.pageRange.updateValue('2');
+          expectFalse(nativeLayer.generateDraft());
+
+          // Change the margin type - need to regenerate again.
+          printPreview.printTicketStore_.marginsType.updateValue(
+              print_preview.ticket_items.MarginsTypeValue.NO_MARGINS);
+          expectTrue(nativeLayer.generateDraft());
+        });
       });
     });
   });