Hi When I use the MockSlingHttpServletRequest to render a page with the Export Servlet then I will get an Unsupported Operation Exception when the Export Servlet tries to obtain the Reader from the request.
private void addScriptBindings(SlingScriptHelper scriptHelper, SlingHttpServletRequest request, SlingHttpServletResponse response) throws IOException { SimpleBindings bindings = new SimpleBindings(); bindings.put(SLING, scriptHelper); bindings.put(RESOURCE, request.getResource()); bindings.put(SlingModelsScriptEngineFactory.RESOLVER, request.getResource().getResourceResolver()); bindings.put(REQUEST, request); bindings.put(RESPONSE, response); bindings.put(READER, request.getReader()); bindings.put(OUT, response.getWriter()); bindings.put(LOG, logger); scriptEngineFactory.invokeBindingsValuesProviders(bindingsValuesProvidersByContext, bindings); SlingBindings slingBindings = new SlingBindings(); slingBindings.putAll(bindings); request.setAttribute(SlingBindings.class.getName(), slingBindings); } I created a ticket for that: https://issues.apache.org/jira/browse/SLING-7174 <https://issues.apache.org/jira/browse/SLING-7174> That said I would suggest to separate the testing implementation from the usage to render page in-sling as the purpose did and probably will clash in the future. Cheers - Andy Schaefer