fixed tests that were using undefined model fields

tests/fields/fields.py

@@ -2717,9 +2717,11 @@ class FieldTest(unittest.TestCase):
 
         class Animal(Document):
             id = SequenceField(primary_key=True)
+            name = StringField()
 
         class Person(Document):
             id = SequenceField(primary_key=True)
+            name = StringField()
 
         self.db['mongoengine.counters'].drop()
         Animal.drop_collection()

tests/queryset/queryset.py

@@ -1492,6 +1492,7 @@ class QuerySetTest(unittest.TestCase):
         """Ensure that atomic updates work properly.
         """
         class BlogPost(Document):
+            name = StringField()
             title = StringField()
             hits = IntField()
             tags = ListField(StringField())
@@ -2878,12 +2879,14 @@ class QuerySetTest(unittest.TestCase):
         self.assertEqual(authors, [mark_twain, john_tolkien])
 
     def test_distinct_ListField_ReferenceField(self):
-        class Foo(Document):
-            bar_lst = ListField(ReferenceField('Bar'))
 
         class Bar(Document):
             text = StringField()
 
+        class Foo(Document):
+            bar = ReferenceField('Bar')
+            bar_lst = ListField(ReferenceField('Bar'))
+
         Bar.drop_collection()
         Foo.drop_collection()
 

tests/test_dereference.py

@@ -947,6 +947,8 @@ class FieldTest(unittest.TestCase):
 
         class Asset(Document):
             name = StringField(max_length=250, required=True)
+            path = StringField()
+            title = StringField()
             parent = GenericReferenceField(default=None)
             parents = ListField(GenericReferenceField())
             children = ListField(GenericReferenceField())

tests/test_django.py

@@ -176,7 +176,7 @@ class QuerySetTest(unittest.TestCase):
 
         class Note(Document):
             meta = dict(queryset_class=LimitCountQuerySet)
-            text = StringField()
+            name = StringField()
 
         Note.drop_collection()