@Test(dataProvider = ANNOTATION_EXPRESSIONS)
public final void readAWidgetWithVariousExpressions(String expression) {
final Evaluator evaluator = new MvelEvaluator();
final WidgetRegistry registry = injector.getInstance(WidgetRegistry.class);
Renderable widget =
new HtmlTemplateCompiler(Object.class, new MvelEvaluatorCompiler(Object.class), registry, pageBook, metrics)
.compile(String.format("<html>@ShowIf(%s)<p>hello</p></html>", expression));