@Override
    public TableCellByTypeTransformer tableCellByTypeTransformer() {
        return transformer;
    }
@Test
    void can_transform_string_to_empty() throws Throwable {
        Method method = JavaDefaultDataTableCellTransformerDefinitionTest.class.getMethod("transform_string_to_type",
            String.class, Type.class);
        JavaDefaultDataTableCellTransformerDefinition definition = new JavaDefaultDataTableCellTransformerDefinition(
            method, lookup, new String[] { "[empty]" });
        Object transformed = definition.tableCellByTypeTransformer().transform("[empty]", String.class);
        assertThat(transformed, is("transform_string_to_type="));
    }