private MockHttpServletResponse render(String viewName, Locale locale)
throws Exception {
LocaleContextHolder.setLocale(locale);
GroovyMarkupViewResolver resolver = this.context
.getBean(GroovyMarkupViewResolver.class);
View view = resolver.resolveViewName(viewName, locale);
assertThat(view, notNullValue());
HttpServletRequest request = new MockHttpServletRequest();
request.setAttribute(RequestContext.WEB_APPLICATION_CONTEXT_ATTRIBUTE,
this.context);
MockHttpServletResponse response = new MockHttpServletResponse();