request.addParameter("project", projectId);
request.addParameter("fetch-url", uri);
assertFalse(schema.getPrefixesMap().containsKey("foaf"));
assertTrue(searcher.searchClasses("foaf:P", projectId).isEmpty());
command.doPost(request, response);
//verification
//prefix is added to the project
assertTrue(schema.getPrefixesMap().containsKey("foaf"));
//search