def test_mount_mask_nil
@EditProperties.document_position = '0'
@EditProperties.document_type = 'Page'
assert_equal('string', @EditProperties.doc_mask_type_selected)
assert_equal('index.html', @EditProperties.doc_mask)
@EditProperties.doc_mask_type_selected = 'nil'
assert_equal('nil', @EditProperties.doc_mask_type_selected)
assert_equal('index.html', @EditProperties.doc_mask)
@EditProperties.write_properties
assert_equal(1, @write_document_list_call)
assert_equal(3, @document_list.length)
assert_nil(@document_list[0]['mount_mask'])
assert_nil(@document_list[1]['mount_mask'])
assert_nil(@document_list[2]['mount_mask'])
end