Improve coverage in fields test

tests/fields/test_cached_reference_field.py

@@ -208,10 +208,7 @@ class TestCachedReferenceField(MongoDBTestCase):
                 ('pj', "PJ")
             )
             name = StringField()
-            tp = StringField(
+            tp = StringField(choices=TYPES)
-                choices=TYPES
-            )
-
             father = CachedReferenceField('self', fields=('tp',))
 
         Person.drop_collection()
@@ -222,6 +219,9 @@ class TestCachedReferenceField(MongoDBTestCase):
         a2 = Person(name='Wilson Junior', tp='pf', father=a1)
         a2.save()
 
+        a2 = Person.objects.with_id(a2.id)
+        self.assertEqual(a2.father.tp, a1.tp)
+
         self.assertEqual(dict(a2.to_mongo()), {
             "_id": a2.pk,
             "name": u"Wilson Junior",
@@ -374,6 +374,9 @@ class TestCachedReferenceField(MongoDBTestCase):
         self.assertEqual(o.to_mongo()['animal']['tag'], 'heavy')
         self.assertEqual(o.to_mongo()['animal']['owner']['t'], 'u')
 
+        # Check to_mongo with fields
+        self.assertNotIn('animal', o.to_mongo(fields=['person']))
+
         # counts
         Ocorrence(person="teste 2").save()
         Ocorrence(person="teste 3").save()

tests/fields/test_datetime_field.py

@@ -172,6 +172,9 @@ class TestDateTimeField(MongoDBTestCase):
         log.time = datetime.datetime.now().isoformat(' ')
         log.validate()
 
+        log.time = '2019-05-16 21:42:57.897847'
+        log.validate()
+
         if dateutil:
             log.time = datetime.datetime.now().isoformat('T')
             log.validate()
@@ -180,6 +183,12 @@ class TestDateTimeField(MongoDBTestCase):
         self.assertRaises(ValidationError, log.validate)
         log.time = 'ABC'
         self.assertRaises(ValidationError, log.validate)
+        log.time = '2019-05-16 21:GARBAGE:12'
+        self.assertRaises(ValidationError, log.validate)
+        log.time = '2019-05-16 21:42:57.GARBAGE'
+        self.assertRaises(ValidationError, log.validate)
+        log.time = '2019-05-16 21:42:57.123.456'
+        self.assertRaises(ValidationError, log.validate)
 
 
 class TestDateTimeTzAware(MongoDBTestCase):

tests/fields/test_lazy_reference_field.py

@@ -508,6 +508,23 @@ class TestGenericLazyReferenceField(MongoDBTestCase):
         p = Ocurrence.objects.get()
         self.assertIs(p.animal, None)
 
+    def test_generic_lazy_reference_accepts_string_instead_of_class(self):
+        class Animal(Document):
+            name = StringField()
+            tag = StringField()
+
+        class Ocurrence(Document):
+            person = StringField()
+            animal = GenericLazyReferenceField('Animal')
+
+        Animal.drop_collection()
+        Ocurrence.drop_collection()
+
+        animal = Animal().save()
+        Ocurrence(animal=animal).save()
+        p = Ocurrence.objects.get()
+        self.assertEqual(p.animal, animal)
+
     def test_generic_lazy_reference_embedded(self):
         class Animal(Document):
             name = StringField()

tests/fields/test_long_field.py

@@ -39,9 +39,9 @@ class TestLongField(MongoDBTestCase):
 
         doc.value = -1
         self.assertRaises(ValidationError, doc.validate)
-        doc.age = 120
+        doc.value = 120
         self.assertRaises(ValidationError, doc.validate)
-        doc.age = 'ten'
+        doc.value = 'ten'
         self.assertRaises(ValidationError, doc.validate)
 
     def test_long_ne_operator(self):