Address review comments

drag_and_drop_v2/public/css/drag_and_drop.css

@@ -108,11 +108,9 @@
 }
 
 .xblock--drag-and-drop .drag-container .option .numerical-input .submit-input {
-    box-sizing: border-box;
     position: absolute;
     left: 150px;
     top: 4px;
-    height: 24px;
 }
 
 .xblock--drag-and-drop .drag-container .option .numerical-input.correct .input-submit,

drag_and_drop_v2/public/js/drag_and_drop.js

 function DragAndDropBlock(runtime, element, configuration) {
     "use strict";
 
+    // Set up a mock for gettext if it isn't available in the client runtime:
+    if (!window.gettext) { window.gettext = function gettext_stub(string) { return string; }; }
+
     var $element = $(element);
     // root: root node managed by the virtual DOM
     var $root = $element.find('.xblock--drag-and-drop');

drag_and_drop_v2/public/js/view.js

@@ -2,9 +2,7 @@
     "use strict";
 
     // Set up a mock for gettext if it isn't available in the client runtime:
-    if (!window.gettext) {
-        window.gettext = function gettext_stub(string) { return string; };
-    }
+    if (!window.gettext) { window.gettext = function gettext_stub(string) { return string; }; }
 
     var FocusHook = function() {
         if (!(this instanceof FocusHook)) {

tests/test_advanced.py

 import json
 import unittest
 
-from mock import Mock
-
-from nose.tools import assert_true, assert_false, assert_in
-
 from .utils import (
     make_block,
     load_resource,

tests/test_basics.py

@@ -16,7 +16,7 @@ class BasicTests(TestCaseMixin, unittest.TestCase):
         self.block = make_block()
         self.patch_workbench()
 
-    def test_templates_contents(self):
+    def test_template_contents(self):
         context = {}
         student_fragment = self.block.runtime.render(self.block, 'student_view', context)
         self.assertIn('<section class="xblock--drag-and-drop">', student_fragment.content)