Add categories sanitizer to search

sanitiser/search.js

@@ -13,6 +13,7 @@ var sanitizeAll = require('../sanitiser/sanitizeAll'),
       private: require('../sanitiser/_flag_bool')('private', false),
       geo_search: require('../sanitiser/_geo_search'),
       boundary_country: require('../sanitiser/_boundary_country'),
+      categories: require('../sanitiser/_categories')
     };
 
 var sanitize = function(req, cb) { sanitizeAll(req, sanitizers, cb); };

test/unit/sanitiser/search.js

@@ -25,7 +25,7 @@ module.exports.tests.interface = function(test, common) {
 module.exports.tests.sanitisers = function(test, common) {
   test('check sanitiser list', function (t) {
     var expected = ['quattroshapes_deprecation', 'singleScalarParameters', 'text', 'size',
-      'layers', 'sources', 'sources_and_layers', 'private', 'geo_search', 'boundary_country' ];
+      'layers', 'sources', 'sources_and_layers', 'private', 'geo_search', 'boundary_country', 'categories' ];
     t.deepEqual(Object.keys(search.sanitiser_list), expected);
     t.end();
   });