refactoring after Python code review

common/lib/xmodule/xmodule/css/word_cloud/display.scss

 .input-cloud {
-  margin: 5px;
+    margin: 5px;
 }
 
 .result_cloud_section {

common/lib/xmodule/xmodule/tests/test_import.py

@@ -393,12 +393,31 @@ class ImportTestCase(BaseCourseTestCase):
         self.assertEqual(len(sections), 1)
 
         location = course.location
-        location = Location(
+
+        conditional_location = Location(
             location.tag, location.org, location.course,
-            'sequential', 'Problem_Demos'
+            'conditional', 'condone'
+        )
+        module = modulestore.get_instance(course.id, conditional_location)
+        self.assertEqual(len(module.children), 1)
+
+        poll_location = Location(
+            location.tag, location.org, location.course,
+            'poll_question', 'first_poll'
+        )
+        module = modulestore.get_instance(course.id, poll_location)
+        self.assertEqual(len(module.get_children()), 0)
+        self.assertEqual(module.voted, False)
+        self.assertEqual(module.poll_answer, '')
+        self.assertEqual(module.poll_answers, {})
+        self.assertEqual(
+            module.answers,
+            [
+                {'text': u'Yes', 'id': 'Yes'},
+                {'text': u'No', 'id': 'No'},
+                {'text': u"Don't know", 'id': 'Dont_know'}
+            ]
         )
-        module = modulestore.get_instance(course.id, location)
-        self.assertEqual(len(module.children), 2)
 
     def test_error_on_import(self):
         '''Check that when load_error_module is false, an exception is raised, rather than returning an ErrorModule'''
@@ -437,10 +456,12 @@ class ImportTestCase(BaseCourseTestCase):
         location = course.location
         location = Location(
             location.tag, location.org, location.course,
-            'sequential', 'Problem_Demos'
+            'word_cloud', 'cloud1'
         )
         module = modulestore.get_instance(course.id, location)
-        self.assertEqual(len(module.children), 1)
+        self.assertEqual(len(module.get_children()), 0)
+        self.assertEqual(module.num_inputs, '5')
+        self.assertEqual(module.num_top_words, '250')
 
     def test_cohort_config(self):
         """

common/lib/xmodule/xmodule/tests/test_logic.py

 # -*- coding: utf-8 -*-
+"""Test for Xmodule functional logic."""
 
 import json
 import unittest
@@ -89,7 +90,7 @@ class WordCloudModuleTest(LogicTest):
 
     def test_bad_ajax_request(self):
 
-        # TODO: move top global test. Formalize all Xmodule errors.
+        # TODO: move top global test. Formalize all our Xmodule errors.
         response = self.ajax_request('bad_dispatch', {})
         self.assertDictEqual(response, {
             'status': 'fail',

common/lib/xmodule/xmodule/word_cloud_module.py

 """Word cloud is ungraded xblock used by students to
-generate and view word cloud..
+generate and view word cloud.
 
 On the client side we show:
-If student does not yet anwered - five text inputs.
+If student does not yet anwered - `num_inputs` numbers of text inputs.
 If student have answered - words he entered and cloud.
-
-Stunent can change his answer.
 """
 
 import json
@@ -108,6 +106,7 @@ class WordCloudModule(WordCloudFields, XModule):
                 })
 
             # Student words from client.
+            # FIXME: we must use raw JSON, not a post data (multipart/form-data)
             raw_student_words = post.getlist('student_words[]')
             student_words = filter(None, map(self.good_word, raw_student_words))
 
@@ -185,5 +184,6 @@ class WordCloudDescriptor(WordCloudFields, MakoModuleDescriptor, XmlDescriptor):
         xml_object = etree.fromstring(xml_str)
         xml_object.set('display_name', self.display_name)
         xml_object.set('num_inputs', self.num_inputs)
+        xml_object.set('num_top_words', self.num_top_words)
 
         return xml_object

common/test/data/word_cloud/conditional/condone.xml

-        <conditional attempted="True" sources="i4x://HarvardX/ER22x/problem/choiceprob">
-            <html url_name="secret_page" />
-        </conditional>

common/test/data/word_cloud/sequential/Problem_Demos.xml

 <sequential>
-    <vertical>
-        <word_cloud display_name="cloud" num_inputs="5" num_top_words="250" />
+    <vertical name="test_vertical">
+        <word_cloud name="cloud1" display_name="cloud" num_inputs="5" num_top_words="250" />
     </vertical>
 </sequential>

lms/templates/word_cloud.html

@@ -24,4 +24,5 @@
         <h3>Total number of words: <span class="total_num_words"></span></h3>
         <div class="word_cloud"></div>
     </section>
+
 </section>