diff --git a/graphene_django/filter/tests/test_array_field_exact_filter.py b/graphene_django/filter/tests/test_array_field_exact_filter.py
index 814fd33..f211466 100644
--- a/graphene_django/filter/tests/test_array_field_exact_filter.py
+++ b/graphene_django/filter/tests/test_array_field_exact_filter.py
@@ -81,6 +81,7 @@ def test_array_field_exact_empty_list(Query):
     ]
 
 
+@pytest.mark.skipif(ArrayField is MissingType, reason="ArrayField should exist")
 def test_array_field_filter_schema_type(Query):
     """
     Check that the type in the filter is an array field like on the object type.
diff --git a/graphene_django/tests/test_command.py b/graphene_django/tests/test_command.py
index 297e461..cbbcf2f 100644
--- a/graphene_django/tests/test_command.py
+++ b/graphene_django/tests/test_command.py
@@ -46,7 +46,7 @@ def test_generate_graphql_file_on_call_graphql_schema():
     open_mock.assert_called_once()
 
     handle = open_mock()
-    assert handle.write.called_once()
+    handle.write.assert_called_once()
 
     schema_output = handle.write.call_args[0][0]
     assert schema_output == dedent(