Fix typos

Author: allcaps

tests/unit/unmarshalling/test_validate.py

@@ -466,7 +466,7 @@ def test_object_multiple_one_of(self, value, validator_factory):
             validator_factory(schema).validate(value)
 
     @pytest.mark.parametrize('value', [{}, ])
-    def test_object_defferent_type_one_of(self, value, validator_factory):
+    def test_object_different_type_one_of(self, value, validator_factory):
         one_of = [
             Schema('integer'), Schema('string'),
         ]
@@ -620,23 +620,23 @@ def test_object_max_properties(self, value, validator_factory):
         assert result is None
 
     @pytest.mark.parametrize('value', [{'additional': 1}, ])
-    def test_object_additional_propetries(self, value, validator_factory):
+    def test_object_additional_properties(self, value, validator_factory):
         schema = Schema('object')
 
         result = validator_factory(schema).validate(value)
 
         assert result is None
 
     @pytest.mark.parametrize('value', [{'additional': 1}, ])
-    def test_object_additional_propetries_false(
+    def test_object_additional_properties_false(
             self, value, validator_factory):
         schema = Schema('object', additional_properties=False)
 
         with pytest.raises(InvalidSchemaValue):
             validator_factory(schema).validate(value)
 
     @pytest.mark.parametrize('value', [{'additional': 1}, ])
-    def test_object_additional_propetries_object(
+    def test_object_additional_properties_object(
             self, value, validator_factory):
         additional_properties = Schema('integer')
         schema = Schema('object', additional_properties=additional_properties)