@Test
    void document_types_can_be_accessed() throws Exception {
        try (Application application = new ApplicationBuilder().documentType("example", EXAMPLE_DOCUMENT)
                .servicesXml(CONTAINER_WITH_DOCUMENT_PROCESSING).build()) {
            JDisc container = application.getJDisc("container");
            DocumentProcessing processing = container.documentProcessing();
            assertTrue(processing.getDocumentTypes().containsKey("example"));
        }
    }
@author Tony Vaagenes
@author gjoranv
@author ollivir
application/src/test/java/com/yahoo/application/container/ContainerTest.java