def test_add_highlighting_should_do_nothing_for_empty_fields(self):
     search_body = {'highlight' : {
         'fields' : {}
     }}
     add_highlighting([], search_body)
     self.assertEqual({'highlight': {
         'fields': {}
     }}, search_body)
 def test_add_highlighting_should_include_every_field_passed(self):
     search_body = {'highlight' : {
         'fields' : {}
     }}
     add_highlighting(['field_1', 'field_2'], search_body)
     self.assertEqual(search_body, {
         'highlight': {
             'fields': {
                 'field_1': {},
                 'field_2': {}
             }
         }
     })