The test cases exercised by invalid_system_views.js may be passing for the wrong reason. They are missing the following elements, each of which will make the view definition invalid, regardless of conditions we want to test.

1. The namespace represented by the '_id' field should be the full namespace, with view name prefixed by the database name and '.' character.
2. A 'viewOn' field must be provided specifying the collection or view this view is being built on.