updates masquerade unit test to account for new show answer button with problems

lms/djangoapps/courseware/tests/test_masquerade.py

@@ -105,7 +105,7 @@ class TestStaffMasqueradeAsStudent(LoginEnrollmentTestCase):
         resp = self.get_problem()
         html = json.loads(resp.content)['html']
         print html
-        sabut = '<input class="show" type="button" value="Show Answer">'
+        sabut = '<button class="show"><span class="show-label">Show Answer(s)</span> <span class="sr">(for question(s) above - adjacent to each field)</span></button>'
         self.assertTrue(sabut in html)
 
     def test_no_showanswer_for_student(self):
@@ -116,5 +116,5 @@ class TestStaffMasqueradeAsStudent(LoginEnrollmentTestCase):
         resp = self.get_problem()
         html = json.loads(resp.content)['html']
         print html
-        sabut = '<input class="show" type="button" value="Show Answer">'
+        sabut = '<button class="show"><span class="show-label">Show Answer(s)</span> <span class="sr">(for question(s) above - adjacent to each field)</span></button>'
         self.assertFalse(sabut in html)