PrintPreview: Added code to identify the printer default duplex value.

chrome/test/data/webui/print_preview.js

 // Copyright (c) 2011 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.
 
 /**
  * Test fixture for print preview WebUI testing.
  * @extends {testing.Test}
  * @constructor
  */
 function PrintPreviewWebUITest() {}
@@ skipping 50 matching lines @@
     mockHandler.stubs().getDefaultPrinter().
         will(callFunction(function() {
           setDefaultPrinter('FooDevice');
         }));
     mockHandler.stubs().getPrinterCapabilities(NOT_NULL).
         will(callFunction(function() {
           updateWithPrinterCapabilities({
             disableColorOption: true,
             setColorAsDefault: true,
             disableCopiesOption: true,
+            printerDefaultDuplexValue: copiesSettings.SIMPLEX,
           });
         }));
     var savedArgs = new SaveMockArguments();
     mockHandler.stubs().getPreview(savedArgs.match(NOT_NULL)).
         will(callFunctionWithSavedArgs(savedArgs, function(args) {
           updatePrintPreview(1, JSON.parse(args[0]).requestID);
         }));
 
     mockHandler.stubs().getPrinters().
         will(callFunction(function() {
@@ skipping 210 matching lines @@
 
 // Test that disabled settings hide the disabled sections.
 TEST_F('PrintPreviewWebUITest', 'TestSectionsDisabled', function() {
   this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
       will(callFunction(function() {
         updateWithPrinterCapabilities({
           disableColorOption: true,
           setColorAsDefault: true,
           disableCopiesOption: true,
           disableLandscapeOption: true,
+          printerDefaultDuplexValue: copiesSettings.SIMPLEX,
         });
       }));
 
   updateControlsWithSelectedPrinterCapabilities();
 
   checkSectionVisible(layoutSettings.layoutOption_, false);
   checkSectionVisible(colorSettings.colorOption_, false);
   checkSectionVisible(copiesSettings.copiesOption_, false);
 });
 
 // Test that the color settings are set according to the printer capabilities.
 TEST_F('PrintPreviewWebUITest', 'TestColorSettings', function() {
   this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
       will(callFunction(function() {
         updateWithPrinterCapabilities({
           disableColorOption: false,
           setColorAsDefault: true,
           disableCopiesOption: false,
           disableLandscapeOption: false,
+          printerDefaultDuplexValue: copiesSettings.SIMPLEX,
         });
       }));
 
   updateControlsWithSelectedPrinterCapabilities();
   expectTrue(colorSettings.colorRadioButton.checked);
   expectFalse(colorSettings.bwRadioButton.checked);
 
   this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
       will(callFunction(function() {
         updateWithPrinterCapabilities({
           disableColorOption: false,
           setColorAsDefault: false,
           disableCopiesOption: false,
           disableLandscapeOption: false,
+          printerDefaultDuplexValue: copiesSettings.SIMPLEX,
         });
       }));
 
   updateControlsWithSelectedPrinterCapabilities();
   expectFalse(colorSettings.colorRadioButton.checked);
   expectTrue(colorSettings.bwRadioButton.checked);
 });
 
+// Test to verify that duplex settings are set according to the printer
+// capabilities.
+TEST_F('PrintPreviewWebUITest', 'TestDuplexSettings', function() {
+  this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
+      will(callFunction(function() {
+        updateWithPrinterCapabilities({
+          disableColorOption: false,
+          setColorAsDefault: false,
+          disableCopiesOption: false,
+          disableLandscapeOption: false,
+          printerDefaultDuplexValue: copiesSettings.SIMPLEX,
+        });
+      }));
+  updateControlsWithSelectedPrinterCapabilities();
+  expectEquals(copiesSettings.duplexMode, copiesSettings.SIMPLEX);
+  expectEquals(copiesSettings.twoSidedOption_.hidden, false);
+
+  // If the printer default duplex value is UNKNOWN_DUPLEX_MODE, hide the
+  // two sided option.
+  this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
+      will(callFunction(function() {
+        updateWithPrinterCapabilities({
+          disableColorOption: false,
+          setColorAsDefault: false,
+          disableCopiesOption: false,
+          disableLandscapeOption: false,
+          printerDefaultDuplexValue: copiesSettings.UNKNOWN_DUPLEX_MODE,
+        });
+      }));
+  updateControlsWithSelectedPrinterCapabilities();
+  expectEquals(copiesSettings.duplexMode, copiesSettings.UNKNOWN_DUPLEX_MODE);
+  expectEquals(copiesSettings.twoSidedOption_.hidden, true);
+
+  this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
+      will(callFunction(function() {
+        updateWithPrinterCapabilities({
+          disableColorOption: false,
+          setColorAsDefault: false,
+          disableCopiesOption: false,
+          disableLandscapeOption: false,
+          printerDefaultDuplexValue: copiesSettings.SIMPLEX,
+        });
+      }));
+  updateControlsWithSelectedPrinterCapabilities();
+  expectEquals(copiesSettings.twoSidedOption_.hidden, false);
+  expectEquals(copiesSettings.duplexMode, copiesSettings.SIMPLEX);
+  copiesSettings.twoSidedCheckbox.checked = true;
+  expectEquals(copiesSettings.duplexMode, copiesSettings.LONG_EDGE);
+});
+
 // Test that changing the selected printer updates the preview.
 TEST_F('PrintPreviewWebUITest', 'TestPrinterChangeUpdatesPreview', function() {
   var savedArgs = new SaveMockArguments();
   this.mockHandler.expects(once()).getPreview(savedArgs.match(ANYTHING)).
       will(callFunctionWithSavedArgs(savedArgs, function(args) {
         updatePrintPreview(2, JSON.parse(args[0]).requestID);
       }));
 
   this.mockGlobals.expects(once()).updateWithPrinterCapabilities(
       savedArgs.match(ANYTHING)).
@@ skipping 40 matching lines @@
 
 // Test that error message is displayed when plugin doesn't exist.
 TEST_F('PrintPreviewNoPDFWebUITest', 'TestErrorMessage', function() {
   var errorButton = $('error-button');
   assertNotEquals(null, errorButton);
   expectFalse(errorButton.disabled);
   var errorText = $('error-text');
   assertNotEquals(null, errorText);
   expectFalse(errorText.classList.contains('hidden'));
 });