@Test
public void testRenderVariablesRendersVariables()
{

    Entity e = entity();
    String templateString = "V{a} V{b}";
    NotificationTemplate template = template( templateString );
    NotificationMessage message = renderer.render( e, template );
    String expected = format( "%s %s", e.propertyA, e.propertyB );
    assertNotNull( message );
    assertEquals( expected, message.getMessage() );
}