AA-496: Don't show reset deadlines banner if no graded problem is past due

When determining completion status to show on the vertical, we take
into account if the problems are graded and scored (have a score
and weight). Now we take that into account in regards to showing the
banner inside the vertical too

common/lib/xmodule/xmodule/util/misc.py

@@ -99,3 +99,14 @@ def get_default_short_labeler(course):
         default_labelers[assignment_type]['index'] += 1
         return labeler(index)
     return default_labeler
+
+
+def is_xblock_an_assignment(xblock):
+    """
+    Takes in a leaf xblock and returns a boolean if the xblock is an assignment.
+    """
+    graded = getattr(xblock, 'graded', False)
+    has_score = getattr(xblock, 'has_score', False)
+    weight = getattr(xblock, 'weight', 1)
+    scored = has_score and (weight is None or weight > 0)
+    return graded and scored

common/lib/xmodule/xmodule/vertical_block.py

@@ -12,6 +12,8 @@ import pytz
 import six
 from lxml import etree
 from web_fragments.fragment import Fragment
+
+from common.lib.xmodule.xmodule.util.misc import is_xblock_an_assignment
 from xblock.core import XBlock
 from xmodule.mako_module import MakoTemplateBlockBase
 from xmodule.progress import Progress
@@ -257,11 +259,7 @@ class VerticalBlock(SequenceFields, XModuleFields, StudioEditableBlock, XmlParse
         all_complete = None
         for child in children:
             complete = completions[child.scope_ids.usage_id] == 1
-            graded = getattr(child, 'graded', False)
-            has_score = getattr(child, 'has_score', False)
-            weight = getattr(child, 'weight', 1)
-            scored = has_score and (weight is None or weight > 0)
-            if graded and scored:
+            if is_xblock_an_assignment(child):
                 if not complete:
                     return False
                 all_complete = True