diff --git a/common/static/coffee/spec/discussion/view/new_post_view_spec.coffee b/common/static/coffee/spec/discussion/view/new_post_view_spec.coffee
new file mode 100644
index 0000000000..a7b20906e1
--- /dev/null
+++ b/common/static/coffee/spec/discussion/view/new_post_view_spec.coffee
@@ -0,0 +1,79 @@
+# -*- coding: utf-8 -*-
+describe "NewPostView", ->
+    beforeEach ->
+        setFixtures(
+            """
+            <article class="new-post-article" style="display: block;">
+                <div class="inner-wrapper">
+                    <form class="new-post-form">
+                        <div class="left-column" >
+                            <div class="form-topic-drop">
+                                <a href="#" aria-labelledby="topic-dropdown-label" class="topic_dropdown_button">… / TA Feedba …
+                                    <span class="drop-arrow">▾</span></a>
+
+                                <div class="topic_menu_wrapper">
+                                    <ul class="topic_menu" role="menu">
+                                        <li role="menuitem">
+                                            <a href="#"><span class="category-menu-span">Basic Question Types</span></a>
+                                            <ul role="menu">
+                                                <li role="menuitem"><a href="#" class="topic"
+                                                                       data-discussion_id="a22e81688d154e059f9a2012a26b27af"
+                                                                       aria-describedby="topic-name-span-a22e81688d154e059f9a2012a26b27af"
+                                                                       cohorted="False">Selection from Options</a></li>
+                                            </ul>
+                                        </li>
+                                    </ul>
+                                </div>
+                            </div>
+                        </div>
+                    </form>
+                </div>
+            </article>
+            """
+        )
+        window.$$course_id = "edX/999/test"
+        spyOn(DiscussionUtil, "makeWmdEditor")
+        @discussion = new Discussion([], {pages: 1})
+        @view = new NewPostView(
+          el: $(".new-post-article"),
+          collection: @discussion,
+        )
+        @parent_category_text = @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[0].text
+        @selected_option_text = @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[1].text
+
+    describe "Drop down works correct", ->
+
+      it "completely show parent category and sub-category", ->
+        complete_text = @parent_category_text + " / " + @selected_option_text
+        selected_text_width = @view.getNameWidth(complete_text)
+        @view.maxNameWidth = selected_text_width + 1
+        @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[1].click()
+        dropdown_text = @view.$el.find(".form-topic-drop > a").text()
+        expect(complete_text+' ▾').toEqual(dropdown_text)
+
+      it "completely show just sub-category", ->
+        complete_text = @parent_category_text + " / " + @selected_option_text
+        selected_text_width = @view.getNameWidth(complete_text)
+        @view.maxNameWidth = selected_text_width - 10
+        @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[1].click()
+        dropdown_text = @view.$el.find(".form-topic-drop > a").text()
+        expect(dropdown_text.indexOf("…")).toEqual(0)
+        expect(dropdown_text).toContain(@selected_option_text)
+
+      it "partially show sub-category", ->
+        parent_width = @view.getNameWidth(@parent_category_text)
+        complete_text = @parent_category_text + " / " + @selected_option_text
+        selected_text_width = @view.getNameWidth(complete_text)
+        @view.maxNameWidth = selected_text_width - parent_width
+        @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[1].click()
+        dropdown_text = @view.$el.find(".form-topic-drop > a").text()
+        expect(dropdown_text.indexOf("…")).toEqual(0)
+        expect(dropdown_text.lastIndexOf("…")).toBeGreaterThan(0)
+
+      it "broken span doesn't occur", ->
+        complete_text = @parent_category_text + " / " + @selected_option_text
+        selected_text_width = @view.getNameWidth(complete_text)
+        @view.maxNameWidth = @view.getNameWidth(@selected_option_text) + 100
+        @view.$el.find( "ul.topic_menu li[role='menuitem'] > a" )[1].click()
+        dropdown_text = @view.$el.find(".form-topic-drop > a").text()
+        expect(dropdown_text.indexOf("/ span>")).toEqual(-1)
diff --git a/common/static/coffee/src/discussion/views/new_post_view.coffee b/common/static/coffee/src/discussion/views/new_post_view.coffee
index ef7d1e86e9..71d605ed1b 100644
--- a/common/static/coffee/src/discussion/views/new_post_view.coffee
+++ b/common/static/coffee/src/discussion/views/new_post_view.coffee
@@ -51,7 +51,7 @@ if Backbone?
 
           # Set here because 1) the window might get resized and things could
           # change and 2) can't set in initialize because the button is hidden
-          @maxNameWidth = @dropdownButton.width() * 0.9
+          @maxNameWidth = @dropdownButton.width() - 40
 
       # Need a fat arrow because hideTopicDropdown is passed as a callback to bind
       hideTopicDropdown: () =>
@@ -81,7 +81,7 @@ if Backbone?
       getFullTopicName: (topicElement) ->
           name = topicElement.html()
           topicElement.parents('ul').not('.topic_menu').each ->
-              name = $(this).siblings('a').html() + ' / ' + name
+              name = $(this).siblings('a').text() + ' / ' + name
           return name
 
       getNameWidth: (name) ->