diff --git a/NEWS.md b/NEWS.md
index bff12396..ce678f4d 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -5,6 +5,8 @@
 Released 2016-mm-dd
 
 Announcements:
+ - Upgrades windshaft to [2.0.1](https://github.com/CartoDB/camshaft/releases/tag/2.0.1 )
+ - Upgrades camshaft to [0.12.1](https://github.com/CartoDB/camshaft/releases/tag/0.12.1)
  - Upgrades turbo-carto to [0.10.1](https://github.com/CartoDB/turbo-carto/releases/tag/0.10.1)
 
 
diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 8c426c7c..b4cc67cc 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -21,7 +21,6 @@ var QueryTables = require('cartodb-query-tables');
  * @param {TileBackend} tileBackend
  * @param {PreviewBackend} previewBackend
  * @param {AttributesBackend} attributesBackend
- * @param {WidgetBackend} widgetBackend
  * @param {SurrogateKeysCache} surrogateKeysCache
  * @param {UserLimitsApi} userLimitsApi
  * @param {LayergroupAffectedTables} layergroupAffectedTables
@@ -29,7 +28,7 @@ var QueryTables = require('cartodb-query-tables');
  * @constructor
  */
 function LayergroupController(authApi, pgConnection, mapStore, tileBackend, previewBackend, attributesBackend,
-                          widgetBackend, surrogateKeysCache, userLimitsApi, layergroupAffectedTables, analysisBackend) {
+                              surrogateKeysCache, userLimitsApi, layergroupAffectedTables, analysisBackend) {
     BaseController.call(this, authApi, pgConnection);
 
     this.pgConnection = pgConnection;
@@ -37,7 +36,6 @@ function LayergroupController(authApi, pgConnection, mapStore, tileBackend, prev
     this.tileBackend = tileBackend;
     this.previewBackend = previewBackend;
     this.attributesBackend = attributesBackend;
-    this.widgetBackend = widgetBackend;
     this.surrogateKeysCache = surrogateKeysCache;
     this.userLimitsApi = userLimitsApi;
     this.layergroupAffectedTables = layergroupAffectedTables;
@@ -78,21 +76,19 @@ LayergroupController.prototype.register = function(app) {
 
     // Undocumented/non-supported API endpoint methods.
     // Use at your own peril.
-    app.get(app.base_url_mapconfig +
-        '/:token/:layer/widget/:widgetName', cors(), userMiddleware,
-        this.widget.bind(this));
-
-    app.get(app.base_url_mapconfig +
-            '/:token/:layer/widget/:widgetName/search', cors(), userMiddleware,
-        this.widgetSearch.bind(this));
-
     app.get(app.base_url_mapconfig +
             '/:token/dataview/:dataviewName', cors(), userMiddleware,
         this.dataview.bind(this));
+    app.get(app.base_url_mapconfig +
+            '/:token/:layer/widget/:dataviewName', cors(), userMiddleware,
+        this.dataview.bind(this));
 
     app.get(app.base_url_mapconfig +
             '/:token/dataview/:dataviewName/search', cors(), userMiddleware,
         this.dataviewSearch.bind(this));
+    app.get(app.base_url_mapconfig +
+            '/:token/:layer/widget/:dataviewName/search', cors(), userMiddleware,
+        this.dataviewSearch.bind(this));
 
     app.get(app.base_url_mapconfig +
         '/:token/analysis/node/:nodeId', cors(), userMiddleware,
@@ -181,62 +177,6 @@ LayergroupController.prototype.dataviewSearch = function(req, res) {
 
 };
 
-LayergroupController.prototype.widget = function(req, res) {
-    var self = this;
-
-    step(
-        function setupParams() {
-            self.req2params(req, this);
-        },
-        function retrieveList(err) {
-            assert.ifError(err);
-
-            var mapConfigProvider = new MapStoreMapConfigProvider(
-                self.mapStore, req.context.user, self.userLimitsApi, req.params
-            );
-            self.widgetBackend.getWidget(mapConfigProvider, req.params, this);
-        },
-        function finish(err, widget, stats) {
-            req.profiler.add(stats || {});
-
-            if (err) {
-                self.sendError(req, res, err, 'GET WIDGET');
-            } else {
-                self.sendResponse(req, res, widget, 200);
-            }
-        }
-    );
-
-};
-
-LayergroupController.prototype.widgetSearch = function(req, res) {
-    var self = this;
-
-    step(
-        function setupParams() {
-            self.req2params(req, this);
-        },
-        function retrieveList(err) {
-            assert.ifError(err);
-
-            var mapConfigProvider = new MapStoreMapConfigProvider(
-                self.mapStore, req.context.user, self.userLimitsApi, req.params
-            );
-            self.widgetBackend.search(mapConfigProvider, req.params, this);
-        },
-        function finish(err, searchResult, stats) {
-            req.profiler.add(stats || {});
-
-            if (err) {
-                self.sendError(req, res, err, 'GET WIDGET');
-            } else {
-                self.sendResponse(req, res, searchResult, 200);
-            }
-        }
-    );
-
-};
-
 LayergroupController.prototype.attributes = function(req, res) {
     var self = this;
 
diff --git a/lib/cartodb/controllers/map.js b/lib/cartodb/controllers/map.js
index 32459059..0357b765 100644
--- a/lib/cartodb/controllers/map.js
+++ b/lib/cartodb/controllers/map.js
@@ -161,15 +161,15 @@ MapController.prototype.create = function(req, res, prepareConfigFn) {
         },
         function afterLayergroupCreate(err, layergroup) {
             assert.ifError(err);
-            var analysesResults = context.analysesResults || [];
-            self.afterLayergroupCreate(req, res, mapConfig, analysesResults, layergroup, this);
+            self.afterLayergroupCreate(req, res, mapConfig, layergroup, this);
         },
         function finish(err, layergroup) {
             if (err) {
                 self.sendError(req, res, err, 'ANONYMOUS LAYERGROUP');
             } else {
-                addWidgetsUrl(req.context.user, layergroup);
-
+                var analysesResults = context.analysesResults || [];
+                addDataviewsAndWidgetsUrls(req.context.user, layergroup, mapConfig.obj());
+                addAnalysesMetadata(req.context.user, layergroup, analysesResults, true);
                 res.set('X-Layergroup-Id', layergroup.layergroupid);
                 self.send(req, res, layergroup, 200);
             }
@@ -219,7 +219,7 @@ MapController.prototype.instantiateTemplate = function(req, res, prepareParamsFn
         },
         function afterLayergroupCreate(err, layergroup) {
             assert.ifError(err);
-            self.afterLayergroupCreate(req, res, mapConfig, [], layergroup, this);
+            self.afterLayergroupCreate(req, res, mapConfig, layergroup, this);
         },
         function finishTemplateInstantiation(err, layergroup) {
             if (err) {
@@ -228,8 +228,7 @@ MapController.prototype.instantiateTemplate = function(req, res, prepareParamsFn
                 var templateHash = self.templateMaps.fingerPrint(mapConfigProvider.template).substring(0, 8);
                 layergroup.layergroupid = cdbuser + '@' + templateHash + '@' + layergroup.layergroupid;
 
-                addWidgetsUrl(cdbuser, layergroup);
-                addDataviewsUrls(cdbuser, layergroup, mapConfig.obj());
+                addDataviewsAndWidgetsUrls(cdbuser, layergroup, mapConfig.obj());
                 addAnalysesMetadata(cdbuser, layergroup, mapConfigProvider.analysesResults);
 
                 res.set('X-Layergroup-Id', layergroup.layergroupid);
@@ -241,8 +240,7 @@ MapController.prototype.instantiateTemplate = function(req, res, prepareParamsFn
     );
 };
 
-
-MapController.prototype.afterLayergroupCreate = function(req, res, mapconfig, analysesResults, layergroup, callback) {
+MapController.prototype.afterLayergroupCreate = function(req, res, mapconfig, layergroup, callback) {
     var self = this;
 
     var username = req.context.user;
@@ -305,10 +303,6 @@ MapController.prototype.afterLayergroupCreate = function(req, res, mapconfig, an
             layergroup.layergroupid = layergroup.layergroupid + ':' + result.getLastUpdatedAt();
             layergroup.last_updated = new Date(result.getLastUpdatedAt()).toISOString();
 
-            // TODO this should take into account several URL patterns
-            addWidgetsUrl(username, layergroup);
-            addDataviewsUrls(username, layergroup, mapconfig.obj());
-            addAnalysesMetadata(username, layergroup, analysesResults, true);
             if (req.method === 'GET') {
                 var ttl = global.environment.varnish.layergroupTtl || 86400;
                 res.set('Cache-Control', 'public,max-age='+ttl+',must-revalidate');
@@ -353,6 +347,12 @@ function addAnalysesMetadata(username, layergroup, analysesResults, includeQuery
     });
 }
 
+// TODO this should take into account several URL patterns
+function addDataviewsAndWidgetsUrls(username, layergroup, mapConfig) {
+    addDataviewsUrls(username, layergroup, mapConfig);
+    addWidgetsUrl(username, layergroup, mapConfig);
+}
+
 function addDataviewsUrls(username, layergroup, mapConfig) {
     layergroup.metadata.dataviews = layergroup.metadata.dataviews || {};
     var dataviews = mapConfig.dataviews || {};
@@ -365,20 +365,23 @@ function addDataviewsUrls(username, layergroup, mapConfig) {
     });
 }
 
-function addWidgetsUrl(username, layergroup) {
-
-    if (layergroup.metadata && Array.isArray(layergroup.metadata.layers)) {
+function addWidgetsUrl(username, layergroup, mapConfig) {
+    if (layergroup.metadata && Array.isArray(layergroup.metadata.layers) && Array.isArray(mapConfig.layers)) {
         layergroup.metadata.layers = layergroup.metadata.layers.map(function(layer, layerIndex) {
-            if (layer.widgets) {
-                Object.keys(layer.widgets).forEach(function(widgetName) {
+            var mapConfigLayer = mapConfig.layers[layerIndex];
+            if (mapConfigLayer.options && mapConfigLayer.options.widgets) {
+                layer.widgets = layer.widgets || {};
+                Object.keys(mapConfigLayer.options.widgets).forEach(function(widgetName) {
                     var resource = layergroup.layergroupid + '/' + layerIndex + '/widget/' + widgetName;
-                    layer.widgets[widgetName].url = getUrls(username, resource);
+                    layer.widgets[widgetName] = {
+                        type: mapConfigLayer.options.widgets[widgetName].type,
+                        url: getUrls(username, resource)
+                    };
                 });
             }
             return layer;
         });
     }
-
 }
 
 function getUrls(username, resource) {
diff --git a/lib/cartodb/models/dataview/aggregation.js b/lib/cartodb/models/dataview/aggregation.js
index f7a49210..4b02f0ee 100644
--- a/lib/cartodb/models/dataview/aggregation.js
+++ b/lib/cartodb/models/dataview/aggregation.js
@@ -102,7 +102,7 @@ Aggregation.prototype.constructor = Aggregation;
 
 module.exports = Aggregation;
 
-Aggregation.prototype.sql = function(psql, filters, override, callback) {
+Aggregation.prototype.sql = function(psql, override, callback) {
     if (!callback) {
         callback = override;
         override = {};
diff --git a/lib/cartodb/models/dataview/formula.js b/lib/cartodb/models/dataview/formula.js
index c3c176dd..156985c5 100644
--- a/lib/cartodb/models/dataview/formula.js
+++ b/lib/cartodb/models/dataview/formula.js
@@ -56,7 +56,7 @@ Formula.prototype.constructor = Formula;
 
 module.exports = Formula;
 
-Formula.prototype.sql = function(psql, filters, override, callback) {
+Formula.prototype.sql = function(psql, override, callback) {
     if (!callback) {
         callback = override;
         override = {};
diff --git a/lib/cartodb/models/dataview/list.js b/lib/cartodb/models/dataview/list.js
index 4127103a..33993777 100644
--- a/lib/cartodb/models/dataview/list.js
+++ b/lib/cartodb/models/dataview/list.js
@@ -34,7 +34,7 @@ List.prototype.constructor = List;
 
 module.exports = List;
 
-List.prototype.sql = function(psql, filters, override, callback) {
+List.prototype.sql = function(psql, override, callback) {
     if (!callback) {
         callback = override;
     }
diff --git a/lib/cartodb/models/mapconfig/adapter/dataviews-widgets-adapter.js b/lib/cartodb/models/mapconfig/adapter/dataviews-widgets-adapter.js
new file mode 100644
index 00000000..46e1c378
--- /dev/null
+++ b/lib/cartodb/models/mapconfig/adapter/dataviews-widgets-adapter.js
@@ -0,0 +1,90 @@
+function DataviewsWidgetsMapConfigAdapter() {
+}
+
+module.exports = DataviewsWidgetsMapConfigAdapter;
+
+
+DataviewsWidgetsMapConfigAdapter.prototype.getMapConfig = function(user, requestMapConfig, params, context, callback) {
+    if (!shouldAdapt(requestMapConfig)) {
+        return callback(null, requestMapConfig);
+    }
+
+    // prepare placeholders for new dataviews created from widgets
+    requestMapConfig.analyses = requestMapConfig.analyses || [];
+    requestMapConfig.dataviews = requestMapConfig.dataviews || {};
+
+    requestMapConfig.layers.forEach(function(layer, index) {
+        var layerSourceId = getLayerSourceId(layer);
+        var dataviewSourceId = layerSourceId || 'cdb-layer-source-' + index;
+        // Append a new analysis if layer has no source id but sql.
+        if (!layerSourceId) {
+            requestMapConfig.analyses.push(
+                {
+                    id: dataviewSourceId,
+                    type: 'source',
+                    params: {
+                        query: layer.options.sql
+                    }
+                }
+            );
+        }
+        var source = { id: dataviewSourceId };
+        var layerWidgets = layer.options.widgets;
+        Object.keys(layerWidgets).forEach(function(widgetId) {
+            var dataview = layerWidgets[widgetId];
+            requestMapConfig.dataviews[widgetId] = {
+                source: source,
+                type: dataview.type,
+                options: dataview.options
+            };
+        });
+
+        layer.options.source = source;
+
+        delete layer.options.sql;
+        // don't delete widgets for now as it might be useful for old clients
+        //delete layer.options.widgets;
+    });
+
+    // filters have to be rewritten also
+    var filters = getFilters(params);
+    var layersFilters = filters.layers || [];
+    filters.dataviews = filters.dataviews || {};
+
+    layersFilters.forEach(function(layerFilters) {
+        Object.keys(layerFilters).forEach(function(filterName) {
+            if (!filters.dataviews.hasOwnProperty(filterName)) {
+                filters.dataviews[filterName] = layerFilters[filterName];
+            }
+        });
+    });
+
+    delete filters.layers;
+
+    params.filters = JSON.stringify(filters);
+
+    return callback(null, requestMapConfig);
+};
+
+function shouldAdapt(requestMapConfig) {
+//    return false;
+    return Array.isArray(requestMapConfig.layers) && requestMapConfig.layers.some(function hasWidgets(layer) {
+        return layer.options && layer.options.widgets && Object.keys(layer.options.widgets).length > 0;
+    });
+}
+
+function getLayerSourceId(layer) {
+    return layer.options.source && layer.options.source.id;
+}
+
+function getFilters(params) {
+    var filters = {};
+    if (params.filters) {
+        try {
+            filters = JSON.parse(params.filters);
+        } catch (e) {
+            // ignore
+        }
+    }
+    return filters;
+}
diff --git a/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js b/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
index b8a473b5..db2cb439 100644
--- a/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
+++ b/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
@@ -72,7 +72,7 @@ MapConfigOverviewsAdapter.prototype.getMapConfig = function(user, requestMapConf
                            layer = _.extend({}, layer);
                            layer.options = _.extend({}, layer.options, { query_rewrite_data: query_rewrite_data });
                        }
-                       done(err, layer);
+                       done(null, layer);
                    }
                );
            }
diff --git a/lib/cartodb/server.js b/lib/cartodb/server.js
index 825ae2b7..aa41ed27 100644
--- a/lib/cartodb/server.js
+++ b/lib/cartodb/server.js
@@ -41,6 +41,7 @@ var MapConfigNamedLayersAdapter = require('./models/mapconfig/adapter/mapconfig-
 var AnalysisMapConfigAdapter = require('./models/mapconfig/adapter/analysis-mapconfig-adapter');
 var MapConfigOverviewsAdapter = require('./models/mapconfig/adapter/mapconfig-overviews-adapter');
 var TurboCartoAdapter = require('./models/mapconfig/adapter/turbo-carto-adapter');
+var DataviewsWidgetsAdapter = require('./models/mapconfig/adapter/dataviews-widgets-adapter');
 var MapConfigAdapter = require('./models/mapconfig/adapter');
 
 module.exports = function(serverOptions) {
@@ -159,6 +160,7 @@ module.exports = function(serverOptions) {
     var mapConfigAdapter = new MapConfigAdapter(
         new MapConfigNamedLayersAdapter(templateMaps, pgConnection),
         new SqlWrapMapConfigAdapter(),
+        new DataviewsWidgetsAdapter(),
         new AnalysisMapConfigAdapter(analysisBackend),
         new MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsApi),
         new TurboCartoAdapter(turboCartoParser)
@@ -192,7 +194,6 @@ module.exports = function(serverOptions) {
         tileBackend,
         previewBackend,
         attributesBackend,
-        new windshaft.backend.Widget(),
         surrogateKeysCache,
         userLimitsApi,
         layergroupAffectedTablesCache,
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index cba946fd..ad676692 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -105,13 +105,13 @@
       }
     },
     "camshaft": {
-      "version": "0.11.0",
-      "from": "camshaft@0.11.0",
-      "resolved": "https://registry.npmjs.org/camshaft/-/camshaft-0.11.0.tgz",
+      "version": "0.12.1",
+      "from": "camshaft@0.12.1",
+      "resolved": "https://registry.npmjs.org/camshaft/-/camshaft-0.12.1.tgz",
       "dependencies": {
         "async": {
           "version": "1.5.2",
-          "from": "async@>=1.0.0 <2.0.0",
+          "from": "async@>=1.5.2 <2.0.0",
           "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz"
         },
         "request": {
@@ -270,7 +270,7 @@
                 },
                 "is-my-json-valid": {
                   "version": "2.13.1",
-                  "from": "is-my-json-valid@>=2.12.0 <3.0.0",
+                  "from": "is-my-json-valid@>=2.12.4 <3.0.0",
                   "resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.13.1.tgz",
                   "dependencies": {
                     "generate-function": {
@@ -391,9 +391,9 @@
                       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz"
                     },
                     "dashdash": {
-                      "version": "1.13.1",
+                      "version": "1.14.0",
                       "from": "dashdash@>=1.12.0 <2.0.0",
-                      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.13.1.tgz"
+                      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.0.tgz"
                     },
                     "getpass": {
                       "version": "0.1.6",
@@ -648,7 +648,7 @@
           "dependencies": {
             "unpipe": {
               "version": "1.0.0",
-              "from": "unpipe@>=1.0.0 <1.1.0",
+              "from": "unpipe@1.0.0",
               "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz"
             }
           }
@@ -804,7 +804,7 @@
         },
         "type-is": {
           "version": "1.6.13",
-          "from": "type-is@>=1.6.10 <1.7.0",
+          "from": "type-is@>=1.6.6 <1.7.0",
           "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.13.tgz",
           "dependencies": {
             "media-typer": {
@@ -1029,7 +1029,7 @@
         },
         "mime-types": {
           "version": "2.1.11",
-          "from": "mime-types@>=2.1.2 <2.2.0",
+          "from": "mime-types@>=2.1.11 <2.2.0",
           "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.11.tgz",
           "dependencies": {
             "mime-db": {
@@ -1056,7 +1056,7 @@
         },
         "tough-cookie": {
           "version": "2.2.2",
-          "from": "tough-cookie@>=2.2.0 <2.3.0",
+          "from": "tough-cookie@>=0.12.0",
           "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.2.2.tgz"
         },
         "http-signature": {
@@ -1152,7 +1152,7 @@
             },
             "chalk": {
               "version": "1.1.3",
-              "from": "chalk@>=1.1.1 <2.0.0",
+              "from": "chalk@>=1.0.0 <2.0.0",
               "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
               "dependencies": {
                 "ansi-styles": {
@@ -1318,14 +1318,14 @@
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.6.0.tgz"
     },
     "windshaft": {
-      "version": "1.19.0",
-      "from": "windshaft@1.19.0",
-      "resolved": "https://registry.npmjs.org/windshaft/-/windshaft-1.19.0.tgz",
+      "version": "2.0.1",
+      "from": "windshaft@2.0.1",
+      "resolved": "https://registry.npmjs.org/windshaft/-/windshaft-2.0.1.tgz",
       "dependencies": {
         "abaculus": {
-          "version": "1.1.0-cdb4",
-          "from": "https://github.com/CartoDB/abaculus/tarball/1.1.0-cdb4",
-          "resolved": "https://github.com/CartoDB/abaculus/tarball/1.1.0-cdb4"
+          "version": "1.1.0-cdb5",
+          "from": "https://github.com/CartoDB/abaculus/tarball/1.1.0-cdb5",
+          "resolved": "https://github.com/CartoDB/abaculus/tarball/1.1.0-cdb5"
         },
         "canvas": {
           "version": "1.2.7-cdb1",
@@ -2966,56 +2966,56 @@
                       "from": "node-pre-gyp@>=0.6.28 <0.7.0",
                       "resolved": "https://registry.npmjs.org/node-pre-gyp/-/node-pre-gyp-0.6.28.tgz"
                     },
-                    "ansi": {
-                      "version": "0.3.1",
-                      "from": "ansi@>=0.3.1 <0.4.0",
-                      "resolved": "https://registry.npmjs.org/ansi/-/ansi-0.3.1.tgz"
-                    },
                     "abbrev": {
                       "version": "1.0.7",
                       "from": "abbrev@>=1.0.0 <2.0.0",
                       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.7.tgz"
                     },
-                    "ansi-styles": {
-                      "version": "2.2.1",
-                      "from": "ansi-styles@>=2.2.1 <3.0.0",
-                      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz"
+                    "ansi": {
+                      "version": "0.3.1",
+                      "from": "ansi@>=0.3.1 <0.4.0",
+                      "resolved": "https://registry.npmjs.org/ansi/-/ansi-0.3.1.tgz"
                     },
                     "ansi-regex": {
                       "version": "2.0.0",
                       "from": "ansi-regex@>=2.0.0 <3.0.0",
                       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.0.0.tgz"
                     },
+                    "ansi-styles": {
+                      "version": "2.2.1",
+                      "from": "ansi-styles@>=2.2.1 <3.0.0",
+                      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz"
+                    },
                     "are-we-there-yet": {
                       "version": "1.1.2",
                       "from": "are-we-there-yet@>=1.1.2 <1.2.0",
                       "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.2.tgz"
                     },
-                    "assert-plus": {
-                      "version": "0.2.0",
-                      "from": "assert-plus@>=0.2.0 <0.3.0",
-                      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz"
-                    },
                     "asn1": {
                       "version": "0.2.3",
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             "generic-pool": {
               "version": "2.1.1",
diff --git a/package.json b/package.json
index fb063f1e..8902330e 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   ],
   "dependencies": {
     "body-parser": "~1.14.0",
-    "camshaft": "0.11.0",
+    "camshaft": "0.12.1",
     "cartodb-psql": "~0.6.1",
     "cartodb-query-tables": "~0.1.0",
     "cartodb-redis": "~0.13.0",
@@ -39,7 +39,7 @@
     "step-profiler": "~0.3.0",
     "turbo-carto": "0.10.1",
     "underscore": "~1.6.0",
-    "windshaft": "1.19.0"
+    "windshaft": "2.0.1"
   },
   "devDependencies": {
     "istanbul": "~0.4.3",
diff --git a/test/acceptance/geojson-renderer.js b/test/acceptance/geojson-renderer.js
new file mode 100644
index 00000000..1c4e2449
--- /dev/null
+++ b/test/acceptance/geojson-renderer.js
@@ -0,0 +1,171 @@
+require('../support/test_helper');
+
+var assert = require('../support/assert');
+var TestClient = require('../support/test-client');
+
+
+describe('use only needed columns', function() {
+
+    function getFeatureByCartodbId(features, cartodbId) {
+        for (var i = 0, len = features.length; i < len; i++) {
+            if (features[i].properties.cartodb_id === cartodbId) {
+                return features[i];
+            }
+        }
+        return {};
+    }
+
+    var options = { format: 'geojson', layer: 0 };
+
+    afterEach(function(done) {
+        if (this.testClient) {
+            this.testClient.drain(done);
+        } else {
+            done();
+        }
+    });
+
+    it('with aggregation widget, interactivity and cartocss columns', function(done) {
+        var widgetMapConfig = {
+            version: '1.5.0',
+            layers: [{
+                type: 'mapnik',
+                options: {
+                    sql: 'select * from populated_places_simple_reduced',
+                    cartocss: '#layer0 { marker-fill: red; marker-width: 10; [name="Madrid"] { marker-fill: green; } }',
+                    cartocss_version: '2.0.1',
+                    widgets: {
+                        adm0name: {
+                            type: 'aggregation',
+                            options: {
+                                column: 'adm0name',
+                                aggregation: 'sum',
+                                aggregationColumn: 'pop_max'
+                            }
+                        }
+                    },
+                    interactivity: "cartodb_id,pop_min"
+                }
+            }]
+        };
+
+        this.testClient = new TestClient(widgetMapConfig);
+        this.testClient.getTile(0, 0, 0, options, function (err, res, geojsonTile) {
+            assert.ok(!err, err);
+            assert.deepEqual(getFeatureByCartodbId(geojsonTile.features, 1109).properties, {
+                cartodb_id: 1109,
+                name: 'Mardin',
+                adm0name: 'Turkey',
+                pop_max: 71373,
+                pop_min: 57586
+            });
+            done();
+        });
+    });
+
+    it('should not duplicate columns', function(done) {
+        var widgetMapConfig = {
+            version: '1.5.0',
+            layers: [{
+                type: 'mapnik',
+                options: {
+                    sql: 'select * from populated_places_simple_reduced',
+                    cartocss: ['#layer0 {',
+                        'marker-fill: red;',
+                        'marker-width: 10;',
+                        '[name="Madrid"] { marker-fill: green; } ',
+                        '[pop_max>100000] { marker-fill: black; } ',
+                        '}'].join('\n'),
+                    cartocss_version: '2.3.0',
+                    widgets: {
+                        adm0name: {
+                            type: 'aggregation',
+                            options: {
+                                column: 'adm0name',
+                                aggregation: 'sum',
+                                aggregationColumn: 'pop_max'
+                            }
+                        }
+                    },
+                    interactivity: "cartodb_id,pop_max"
+                }
+            }]
+        };
+
+        this.testClient = new TestClient(widgetMapConfig);
+        this.testClient.getTile(0, 0, 0, options, function (err, res, geojsonTile) {
+            assert.ok(!err, err);
+            assert.deepEqual(getFeatureByCartodbId(geojsonTile.features, 1109).properties, {
+                cartodb_id: 1109,
+                name: 'Mardin',
+                adm0name: 'Turkey',
+                pop_max: 71373
+            });
+            done();
+        });
+    });
+
+    it('with formula widget, no interactivity and no cartocss columns', function(done) {
+        var formulaWidgetMapConfig = {
+            version: '1.5.0',
+            layers: [{
+                type: 'mapnik',
+                options: {
+                    sql: 'select * from populated_places_simple_reduced where pop_max > 0 and pop_max < 600000',
+                    cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                    cartocss_version: '2.0.1',
+                    interactivity: 'cartodb_id',
+                    widgets: {
+                        pop_max_f: {
+                            type: 'formula',
+                            options: {
+                                column: 'pop_max',
+                                operation: 'count'
+                            }
+                        }
+                    }
+                }
+            }]
+        };
+
+        this.testClient = new TestClient(formulaWidgetMapConfig);
+        this.testClient.getTile(0, 0, 0, options, function (err, res, geojsonTile) {
+            assert.ok(!err, err);
+            assert.deepEqual(getFeatureByCartodbId(geojsonTile.features, 1109).properties, {
+                cartodb_id: 1109,
+                pop_max: 71373
+            });
+            done();
+        });
+    });
+    it('with cartocss with multiple expressions', function(done) {
+        var formulaWidgetMapConfig = {
+            version: '1.5.0',
+            layers: [{
+                type: 'mapnik',
+                options: {
+                    sql: 'select * from populated_places_simple_reduced where pop_max > 0 and pop_max < 600000',
+                    cartocss: '#layer0 { marker-fill: red; marker-width: 10; }' +
+                        '#layer0 { marker-width: 14; [name="Madrid"] { marker-width: 20; } }' +
+                        '#layer0[pop_max>1000] { marker-width: 14; [name="Madrid"] { marker-width: 20; } }' +
+                        '#layer0[adm0name=~".*Turkey*"] { marker-width: 14; [name="Madrid"] { marker-width: 20; } }',
+                    cartocss_version: '2.0.1',
+                    interactivity: 'cartodb_id'
+                }
+            }]
+        };
+
+        this.testClient = new TestClient(formulaWidgetMapConfig);
+        this.testClient.getTile(0, 0, 0, options, function (err, res, geojsonTile) {
+            assert.ok(!err, err);
+            assert.deepEqual(getFeatureByCartodbId(geojsonTile.features, 1109).properties, {
+                cartodb_id: 1109,
+                pop_max:71373,
+                name:"Mardin",
+                adm0name:"Turkey"
+            });
+            done();
+        });
+    });
+
+});
\ No newline at end of file
diff --git a/test/acceptance/widgets/ported/aggregation.js b/test/acceptance/widgets/ported/aggregation.js
new file mode 100644
index 00000000..9329f039
--- /dev/null
+++ b/test/acceptance/widgets/ported/aggregation.js
@@ -0,0 +1,329 @@
+require('../../../support/test_helper');
+
+var assert = require('../../../support/assert');
+var TestClient = require('../../../support/test-client');
+
+describe('widgets', function() {
+
+    describe('aggregations', function() {
+
+        afterEach(function(done) {
+            if (this.testClient) {
+                this.testClient.drain(done);
+            } else {
+                done();
+            }
+        });
+
+        var aggregationMapConfig = {
+            version: '1.5.0',
+            layers: [
+                {
+                    type: 'mapnik',
+                    options: {
+                        sql: 'select * from populated_places_simple_reduced',
+                        cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                        cartocss_version: '2.0.1',
+                        widgets: {
+                            adm0name: {
+                                type: 'aggregation',
+                                options: {
+                                    column: 'adm0name',
+                                    aggregation: 'count'
+                                }
+                            }
+                        }
+                    }
+                }
+            ]
+        };
+
+        it('can be fetched from a valid aggregation', function(done) {
+            this.testClient = new TestClient(aggregationMapConfig);
+            this.testClient.getWidget('adm0name', { own_filter: 0 }, function (err, res, aggregation) {
+                assert.ok(!err, err);
+                assert.ok(aggregation);
+                assert.equal(aggregation.type, 'aggregation');
+
+                assert.equal(aggregation.categories.length, 6);
+
+                assert.deepEqual(
+                    aggregation.categories[0],
+                    { category: 'United States of America', value: 769, agg: false }
+                );
+
+                assert.deepEqual(
+                    aggregation.categories[aggregation.categories.length - 1],
+                    { category: 'Other', value: 4914, agg: true }
+                );
+
+                done();
+            });
+        });
+
+        var filteredCategoriesScenarios = [
+            { accept: ['Canada'], values: [256] },
+            { accept: ['Canada', 'Spain', 'Chile', 'Thailand'], values: [256, 49, 83, 79] },
+            { accept: ['Canada', 'Spain', 'Chile', 'Thailand', 'Japan'], values: [256, 49, 83, 79, 69] },
+            { accept: ['Canada', 'Spain', 'Chile', 'Thailand', 'Japan', 'France'], values: [256, 49, 83, 79, 69, 71] },
+            {
+                accept: ['United States of America', 'Canada', 'Spain', 'Chile', 'Thailand', 'Japan', 'France'],
+                values: [769, 256, 49, 83, 79, 69, 71]
+            }
+        ];
+
+        filteredCategoriesScenarios.forEach(function(scenario) {
+            it('can filter some categories: ' + scenario.accept.join(', '), function(done) {
+                this.testClient = new TestClient(aggregationMapConfig);
+                var adm0nameFilter = {
+                    adm0name: {
+                        accept: scenario.accept
+                    }
+                };
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [
+                            adm0nameFilter
+                        ]
+                    }
+                };
+                this.testClient.getWidget('adm0name', params, function (err, res, aggregation) {
+                    assert.ok(!err, err);
+                    assert.ok(aggregation);
+                    assert.equal(aggregation.type, 'aggregation');
+
+                    assert.equal(aggregation.categories.length, scenario.accept.length);
+
+                    var categoriesByCategory = aggregation.categories.reduce(function(byCategory, row) {
+                        byCategory[row.category] = row;
+                        return byCategory;
+                    }, {});
+
+                    var scenarioByCategory = scenario.accept.reduce(function(byCategory, category, index) {
+                        byCategory[category] = { category: category, value: scenario.values[index], agg: false };
+                        return byCategory;
+                    }, {});
+
+                    Object.keys(categoriesByCategory).forEach(function(category) {
+                        assert.deepEqual(categoriesByCategory[category], scenarioByCategory[category]);
+                    });
+
+                    done();
+                });
+            });
+        });
+
+        var aggregationSumMapConfig = {
+            version: '1.5.0',
+            layers: [
+                {
+                    type: 'mapnik',
+                    options: {
+                        sql: 'select * from populated_places_simple_reduced',
+                        cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                        cartocss_version: '2.0.1',
+                        widgets: {
+                            adm0name: {
+                                type: 'aggregation',
+                                options: {
+                                    column: 'adm0name',
+                                    aggregation: 'sum',
+                                    aggregationColumn: 'pop_max'
+                                }
+                            }
+                        }
+                    }
+                }
+            ]
+        };
+
+        it('can sum other column for aggregation value', function(done) {
+
+            this.testClient = new TestClient(aggregationSumMapConfig);
+            this.testClient.getWidget('adm0name', { own_filter: 0 }, function (err, res, aggregation) {
+                assert.ok(!err, err);
+                assert.ok(aggregation);
+                assert.equal(aggregation.type, 'aggregation');
+
+                assert.equal(aggregation.categories.length, 6);
+
+                assert.deepEqual(
+                    aggregation.categories[0],
+                    { category: 'China', value: 374537585, agg: false }
+                );
+
+                assert.deepEqual(
+                    aggregation.categories[aggregation.categories.length - 1],
+                    { category: 'Other', value: 1412626289, agg: true }
+                );
+
+                done();
+            });
+        });
+
+        var filteredCategoriesSumScenarios = [
+            { accept: [], values: [] },
+            { accept: ['Canada'], values: [23955084] },
+            { accept: ['Canada', 'Spain', 'Chile', 'Thailand'], values: [23955084, 22902774, 14356263, 17492483] },
+            {
+                accept: ['United States of America', 'Canada', 'Spain', 'Chile', 'Thailand', 'Japan', 'France'],
+                values: [239098994, 23955084, 22902774, 14356263, 17492483, 93577001, 25473876]
+            }
+        ];
+
+        filteredCategoriesSumScenarios.forEach(function(scenario) {
+            it('can filter some categories with sum aggregation: ' + scenario.accept.join(', '), function(done) {
+                this.testClient = new TestClient(aggregationSumMapConfig);
+                var adm0nameFilter = {
+                    adm0name: {
+                        accept: scenario.accept
+                    }
+                };
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [
+                            adm0nameFilter
+                        ]
+                    }
+                };
+                this.testClient.getWidget('adm0name', params, function (err, res, aggregation) {
+                    assert.ok(!err, err);
+                    assert.ok(aggregation);
+                    assert.equal(aggregation.type, 'aggregation');
+
+                    assert.equal(aggregation.categories.length, scenario.accept.length);
+
+                    var categoriesByCategory = aggregation.categories.reduce(function(byCategory, row) {
+                        byCategory[row.category] = row;
+                        return byCategory;
+                    }, {});
+
+                    var scenarioByCategory = scenario.accept.reduce(function(byCategory, category, index) {
+                        byCategory[category] = { category: category, value: scenario.values[index], agg: false };
+                        return byCategory;
+                    }, {});
+
+                    Object.keys(categoriesByCategory).forEach(function(category) {
+                        assert.deepEqual(categoriesByCategory[category], scenarioByCategory[category]);
+                    });
+
+                    done();
+                });
+            });
+        });
+
+        var numericAggregationMapConfig = {
+            version: '1.5.0',
+            layers: [
+                {
+                    type: 'mapnik',
+                    options: {
+                        sql: 'select * from populated_places_simple_reduced',
+                        cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                        cartocss_version: '2.3.0',
+                        widgets: {
+                            scalerank: {
+                                type: 'aggregation',
+                                options: {
+                                    column: 'scalerank',
+                                    aggregation: 'count'
+                                }
+                            }
+                        }
+                    }
+                }
+            ]
+        };
+
+        ['1', 1].forEach(function(filterValue) {
+            it('can filter numeric categories: ' + (typeof filterValue), function(done) {
+                this.testClient = new TestClient(numericAggregationMapConfig);
+                var scalerankFilter = {
+                    scalerank: {
+                        accept: [filterValue]
+                    }
+                };
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [scalerankFilter]
+                    }
+                };
+                this.testClient.getWidget('scalerank', params, function (err, res, aggregation) {
+                    assert.ok(!err, err);
+                    assert.ok(aggregation);
+                    assert.equal(aggregation.type, 'aggregation');
+
+                    assert.equal(aggregation.categories.length, 1);
+                    assert.deepEqual(aggregation.categories[0], { category: '1', value: 179, agg: false });
+
+                    done();
+                });
+            });
+        });
+
+        describe('search', function() {
+            afterEach(function(done) {
+                if (this.testClient) {
+                    this.testClient.drain(done);
+                } else {
+                    done();
+                }
+            });
+
+            ['1', 1].forEach(function(userQuery) {
+                it('can search numeric categories: ' + (typeof userQuery), function(done) {
+                    this.testClient = new TestClient(numericAggregationMapConfig);
+                    var scalerankFilter = {
+                        scalerank: {
+                            accept: [userQuery]
+                        }
+                    };
+                    var params = {
+                        own_filter: 0,
+                        filters: {
+                            layers: [scalerankFilter]
+                        }
+                    };
+                    this.testClient.widgetSearch('scalerank', userQuery, params, function (err, res, searchResult) {
+                        assert.ok(!err, err);
+                        assert.ok(searchResult);
+                        assert.equal(searchResult.type, 'aggregation');
+
+                        assert.equal(searchResult.categories.length, 2);
+                        assert.deepEqual(
+                            searchResult.categories,
+                            [{ category: 10, value: 515 }, { category: 1, value: 179 }]
+                        );
+
+                        done();
+                    });
+                });
+            });
+
+            var adm0name = 'Argentina';
+            [adm0name, adm0name.toLowerCase(), adm0name.toUpperCase()].forEach(function(userQuery) {
+                it('should search with case insensitive: ' + userQuery, function(done) {
+                    this.testClient = new TestClient(aggregationMapConfig);
+                    this.testClient.widgetSearch('adm0name', userQuery, function (err, res, searchResult) {
+                        assert.ok(!err, err);
+                        assert.ok(searchResult);
+                        assert.equal(searchResult.type, 'aggregation');
+
+                        assert.equal(searchResult.categories.length, 1);
+                        assert.deepEqual(
+                            searchResult.categories,
+                            [{ category:"Argentina", value:159 }]
+                        );
+
+                        done();
+                    });
+                });
+            });
+        });
+
+    });
+
+});
diff --git a/test/acceptance/widgets/ported/formula.js b/test/acceptance/widgets/ported/formula.js
new file mode 100644
index 00000000..17d5c287
--- /dev/null
+++ b/test/acceptance/widgets/ported/formula.js
@@ -0,0 +1,89 @@
+require('../../../support/test_helper');
+
+var assert        = require('../../../support/assert');
+var TestClient = require('../../../support/test-client');
+
+describe('widgets', function() {
+
+    describe('formula', function() {
+
+        afterEach(function(done) {
+            if (this.testClient) {
+                this.testClient.drain(done);
+            } else {
+                done();
+            }
+        });
+
+        function widgetsMapConfig(widgets) {
+            return {
+                version: '1.5.0',
+                layers: [
+                    {
+                        type: 'mapnik',
+                        options: {
+                            sql: 'select * from populated_places_simple_reduced where pop_max > 0 and pop_max < 600000',
+                            cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                            cartocss_version: '2.0.1',
+                            widgets: widgets
+                        }
+                    }
+                ]
+            };
+        }
+
+        var operations = {
+            min: [10, 0],
+            max: [599579, 0],
+            count: [5822, 0],
+            avg: [112246.00893163861, 0],
+            sum: [653496264, 0]
+        };
+
+        Object.keys(operations).forEach(function(operation) {
+            it('should do ' + operation + ' over column', function(done) {
+                var widgets = {
+                    pop_max_f: {
+                        type: 'formula',
+                        options: {
+                            column: 'pop_max',
+                            operation: operation
+                        }
+                    }
+                };
+                this.testClient = new TestClient(widgetsMapConfig(widgets));
+                this.testClient.getWidget('pop_max_f', function (err, res, result) {
+                    assert.ok(!err, err);
+                    assert.equal(result.operation, operation);
+                    assert.equal(result.result, operations[operation][0]);
+                    assert.equal(result.nulls, operations[operation][1]);
+
+                    done();
+                });
+            });
+        });
+
+        it('does not require column for count formula', function(done) {
+           var operation = 'count';
+            var widgets = {
+                pop_max_count_f: {
+                    type: 'formula',
+                    options: {
+                        operation: operation
+                    }
+                }
+            };
+            this.testClient = new TestClient(widgetsMapConfig(widgets));
+            this.testClient.getWidget('pop_max_count_f', function (err, res, result) {
+                assert.ok(!err, err);
+                assert.equal(result.operation, operation);
+                assert.equal(result.result, operations[operation][0]);
+                assert.equal(result.nulls, operations[operation][1]);
+
+                done();
+            });
+        });
+
+    });
+
+});
diff --git a/test/acceptance/widgets/ported/histogram.js b/test/acceptance/widgets/ported/histogram.js
new file mode 100644
index 00000000..0f5c9d8e
--- /dev/null
+++ b/test/acceptance/widgets/ported/histogram.js
@@ -0,0 +1,373 @@
+require('../../../support/test_helper');
+
+var assert        = require('../../../support/assert');
+var TestClient = require('../../../support/test-client');
+
+describe('widgets', function() {
+
+    describe('histograms', function() {
+
+        afterEach(function(done) {
+            if (this.testClient) {
+                this.testClient.drain(done);
+            } else {
+                done();
+            }
+        });
+
+        function histogramsMapConfig(widgets) {
+            return {
+                version: '1.5.0',
+                layers: [
+                    {
+                        type: 'mapnik',
+                        options: {
+                            sql: 'select * from populated_places_simple_reduced',
+                            cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                            cartocss_version: '2.0.1',
+                            widgets: widgets || {
+                                scalerank: {
+                                    type: 'histogram',
+                                    options: {
+                                        column: 'scalerank'
+                                    }
+                                },
+                                pop_max: {
+                                    type: 'histogram',
+                                    options: {
+                                        column: 'pop_max'
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            };
+        }
+
+        it('can be fetched from a valid histogram', function(done) {
+            this.testClient = new TestClient(histogramsMapConfig());
+            this.testClient.getWidget('scalerank', function (err, res, histogram) {
+                assert.ok(!err, err);
+                assert.ok(histogram);
+                assert.equal(histogram.type, 'histogram');
+                validateHistogramBins(histogram);
+
+                assert.ok(histogram.bins.length);
+
+                assert.deepEqual(histogram.bins[0], { bin: 0, freq: 179, min: 1, max: 1, avg: 1 });
+
+                done();
+            });
+        });
+
+        it('can be fetched from a valid histogram', function(done) {
+            this.testClient = new TestClient(histogramsMapConfig());
+            this.testClient.getWidget('pop_max', function (err, res, histogram) {
+                assert.ok(!err, err);
+                assert.ok(histogram);
+                assert.equal(histogram.type, 'histogram');
+                validateHistogramBins(histogram);
+
+                assert.ok(histogram.bins.length);
+
+                assert.deepEqual(
+                    histogram.bins[histogram.bins.length - 1],
+                    { bin: 47, freq: 1, min: 35676000, max: 35676000, avg: 35676000 }
+                );
+
+                done();
+            });
+        });
+
+        it('can be fetched from a valid filtered histogram', function(done) {
+            this.testClient = new TestClient(histogramsMapConfig());
+            var popMaxFilter = {
+                pop_max: {
+                    min: 1e5,
+                    max: 1e7
+                }
+            };
+            var params = {
+                own_filter: 1,
+                filters: {
+                    layers: [popMaxFilter]
+                }
+            };
+            this.testClient.getWidget('pop_max', params, function (err, res, histogram) {
+                assert.ok(!err, err);
+                assert.ok(histogram);
+                assert.equal(histogram.type, 'histogram');
+                validateHistogramBins(histogram);
+
+                assert.ok(histogram.bins.length);
+
+                assert.deepEqual(
+                    histogram.bins[histogram.bins.length - 1],
+                    { bin: 7, min: 8829000, max: 9904000, avg: 9340914.714285715, freq: 7 }
+                );
+
+                done();
+            });
+        });
+
+        it('returns array with freq=0 entries for empty bins', function(done) {
+            var histogram20binsMapConfig = {
+                version: '1.5.0',
+                layers: [
+                    {
+                        type: 'mapnik',
+                        options: {
+                            sql: 'select * from populated_places_simple_reduced',
+                            cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                            cartocss_version: '2.0.1',
+                            widgets: {
+                                pop_max: {
+                                    type: 'histogram',
+                                    options: {
+                                        column: 'pop_max'
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            };
+
+            this.testClient = new TestClient(histogram20binsMapConfig);
+            this.testClient.getWidget('pop_max', { start: 0, end: 35676000, bins: 20 }, function (err, res, histogram) {
+                assert.ok(!err, err);
+                assert.equal(histogram.type, 'histogram');
+                validateHistogramBins(histogram);
+                assert.ok(histogram.bins.length);
+                assert.deepEqual(
+                    histogram.bins[histogram.bins.length - 1],
+                    { bin: 19, freq: 1, min: 35676000, max: 35676000, avg: 35676000 }
+                );
+
+                var emptyBin = histogram.bins[18];
+                assert.ok(!emptyBin);
+
+                done();
+            });
+        });
+
+        it('can use a fixed number of bins', function(done) {
+            var fixedBinsHistogramMapConfig = histogramsMapConfig({
+                pop_max: {
+                    type: 'histogram',
+                    options: {
+                        column: 'pop_max'
+                    }
+                }
+            });
+
+            this.testClient = new TestClient(fixedBinsHistogramMapConfig);
+            this.testClient.getWidget('pop_max', { bins: 5 }, function (err, res, histogram) {
+                assert.ok(!err, err);
+                assert.equal(histogram.type, 'histogram');
+
+                assert.equal(histogram.bins_count, 5);
+
+                validateHistogramBins(histogram);
+
+                assert.ok(histogram.bins.length);
+                assert.deepEqual(
+                    histogram.bins[0],
+                    { bin: 0, min: 0, max: 7067423, avg: 280820.0057731959, freq: 7275 }
+                );
+                assert.deepEqual(
+                    histogram.bins[histogram.bins.length - 1],
+                    { bin: 4, freq: 1, min: 35676000, max: 35676000, avg: 35676000 }
+                );
+
+                done();
+            });
+        });
+
+        function validateHistogramBins(histogram) {
+            var binWidth = histogram.bin_width;
+            var start = histogram.bins_start;
+            var end = start + (histogram.bins_count * binWidth);
+
+            var firstBin = histogram.bins[0];
+            assert.equal(firstBin.min, start,
+                'First bin does not match min and start ' + JSON.stringify({
+                    min: firstBin.min,
+                    start: start
+                })
+            );
+
+            var lastBin = histogram.bins[histogram.bins.length - 1];
+            assert.equal(lastBin.max, end,
+                'Last bin does not match max and end ' + JSON.stringify({
+                    max: lastBin.max,
+                    end: end
+                })
+            );
+
+            function getBinStartEnd(binIndex) {
+                return {
+                    start: start + (binIndex * binWidth),
+                    end: start + ((binIndex + 1) * binWidth)
+                };
+            }
+
+            histogram.bins.forEach(function(bin) {
+                var binStartEnd = getBinStartEnd(bin.bin);
+
+                assert.ok(binStartEnd.start <= bin.min,
+                    'Bin start bigger than bin min ' + JSON.stringify({
+                        bin: bin.bin,
+                        min: bin.min,
+                        start: binStartEnd.start
+                    })
+                );
+
+                assert.ok(binStartEnd.end >= bin.max,
+                    'Bin end smaller than bin max ' + JSON.stringify({
+                        bin: bin.bin,
+                        max: bin.max,
+                        end: binStartEnd.end
+                    })
+                );
+
+                assert.ok(bin.avg >= bin.min && bin.avg <= bin.max,
+                        'Bin avg not between min and max values' + JSON.stringify({
+                        bin: bin.bin,
+                        avg: bin.avg,
+                        min: bin.min,
+                        max: bin.max
+                    })
+                );
+            });
+        }
+
+        describe('datetime column', function() {
+            afterEach(function(done) {
+                if (this.testClient) {
+                    this.testClient.drain(done);
+                } else {
+                    done();
+                }
+            });
+
+            var updatedAtFilter = {
+                updated_at: {
+                    min: 0
+                }
+            };
+
+            it('can use a datetime column', function(done) {
+                this.testClient = new TestClient(histogramsMapConfig({
+                    updated_at: {
+                        type: 'histogram',
+                        options: {
+                            column: 'updated_at'
+                        }
+                    }
+                }));
+                this.testClient.getWidget('updated_at', function (err, res, histogram) {
+                    assert.ok(!err, err);
+                    assert.ok(histogram);
+                    assert.equal(histogram.type, 'histogram');
+
+                    assert.ok(histogram.bins.length);
+
+                    done();
+                });
+            });
+
+            it('can use a datetime filtered column', function(done) {
+                this.testClient = new TestClient(histogramsMapConfig({
+                    updated_at: {
+                        type: 'histogram',
+                        options: {
+                            column: 'updated_at'
+                        }
+                    }
+                }));
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [updatedAtFilter]
+                    }
+                };
+                this.testClient.getWidget('updated_at', params, function (err, res, histogram) {
+                    assert.ok(!err, err);
+                    assert.ok(histogram);
+                    assert.equal(histogram.type, 'histogram');
+
+                    assert.ok(histogram.bins.length);
+
+                    done();
+                });
+            });
+
+            it('can getTile with datetime filtered column', function(done) {
+                this.testClient = new TestClient(histogramsMapConfig({
+                    updated_at: {
+                        type: 'histogram',
+                        options: {
+                            column: 'updated_at'
+                        }
+                    }
+                }));
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [updatedAtFilter]
+                    }
+                };
+                this.testClient.getTile(0, 0, 0, params, function (err, res, tile) {
+                    assert.ok(!err, err);
+                    assert.ok(tile);
+
+                    done();
+                });
+            });
+
+            it('can use two columns with different types', function(done) {
+                this.testClient = new TestClient(histogramsMapConfig({
+                    updated_at: {
+                        type: 'histogram',
+                        options: {
+                            column: 'updated_at'
+                        }
+                    },
+                    pop_max: {
+                        type: 'histogram',
+                        options: {
+                            column: 'pop_max'
+                        }
+                    }
+                }));
+
+                var popMaxFilter = {
+                    pop_max: {
+                        max: 1e7
+                    }
+                };
+
+                var params = {
+                    own_filter: 1,
+                    filters: {
+                        layers: [popMaxFilter]
+                    }
+                };
+
+                this.testClient.getWidget('updated_at', params, function (err, res, histogram) {
+                    assert.ok(!err, err);
+                    assert.ok(histogram);
+                    assert.equal(histogram.type, 'histogram');
+
+                    assert.ok(histogram.bins.length);
+
+                    done();
+                });
+            });
+        });
+
+    });
+
+});
diff --git a/test/acceptance/widgets/ported/list.js b/test/acceptance/widgets/ported/list.js
new file mode 100644
index 00000000..e33156f7
--- /dev/null
+++ b/test/acceptance/widgets/ported/list.js
@@ -0,0 +1,106 @@
+require('../../../support/test_helper');
+
+var assert        = require('../../../support/assert');
+var TestClient = require('../../../support/test-client');
+var _ = require('underscore');
+
+describe('widgets', function() {
+
+    describe('lists', function() {
+
+        afterEach(function(done) {
+            if (this.testClient) {
+                this.testClient.drain(done);
+            } else {
+                done();
+            }
+        });
+
+        function listsMapConfig(columns) {
+            return {
+                version: '1.5.0',
+                layers: [
+                    {
+                        type: 'mapnik',
+                        options: {
+                            sql: 'select * from test_table',
+                            cartocss: '#layer0 { marker-fill: red; marker-width: 10; }',
+                            cartocss_version: '2.0.1',
+                            widgets: {
+                                places: {
+                                    type: 'list',
+                                    options: {
+                                        columns: columns || ['name', 'address']
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            };
+        }
+
+        var EXPECTED_NAMES = ['Hawai', 'El Estocolmo', 'El Rey del Tallarín', 'El Lacón', 'El Pico'];
+
+        it('can be fetched from a valid list', function(done) {
+            var columns = ['name', 'address'];
+            this.testClient = new TestClient(listsMapConfig(columns));
+            this.testClient.getWidget('places', function (err, res, list) {
+                assert.ok(!err, err);
+                assert.ok(list);
+                assert.equal(list.type, 'list');
+                assert.equal(list.rows.length, 5);
+
+                assert.ok(onlyHasFields(list, columns));
+
+                var names = list.rows.map(function (item) {
+                    return item.name;
+                });
+                assert.deepEqual(names, EXPECTED_NAMES);
+
+                var expectedAddresses = [
+                    'Calle de Pérez Galdós 9, Madrid, Spain',
+                    'Calle de la Palma 72, Madrid, Spain',
+                    'Plaza Conde de Toreno 2, Madrid, Spain',
+                    'Manuel Fernández y González 8, Madrid, Spain',
+                    'Calle Divino Pastor 12, Madrid, Spain'
+                ];
+                var addresses = list.rows.map(function (item) {
+                    return item.address;
+                });
+                assert.deepEqual(addresses, expectedAddresses);
+
+                done();
+            });
+        });
+
+        it('should fetch just one column', function(done) {
+            var columns = ['name'];
+            this.testClient = new TestClient(listsMapConfig(columns));
+            this.testClient.getWidget('places', function (err, res, list) {
+                assert.ok(!err, err);
+                assert.ok(list);
+                assert.equal(list.type, 'list');
+                assert.equal(list.rows.length, 5);
+
+                assert.ok(onlyHasFields(list, columns));
+
+                var names = list.rows.map(function (item) {
+                    return item.name;
+                });
+                assert.deepEqual(names, EXPECTED_NAMES);
+
+                done();
+            });
+        });
+
+        function onlyHasFields(list, expectedFields) {
+            var fields = (!!list.rows[0]) ? Object.keys(list.rows[0]) : [];
+
+            return _.difference(fields, expectedFields).length === 0 &&
+                _.difference(expectedFields, fields).length === 0;
+        }
+
+    });
+
+});
diff --git a/test/support/test-client.js b/test/support/test-client.js
index e0fadeee..6aec4405 100644
--- a/test/support/test-client.js
+++ b/test/support/test-client.js
@@ -62,6 +62,7 @@ TestClient.prototype.getWidget = function(widgetName, params, callback) {
                         return next(err);
                     }
                     var parsedBody = JSON.parse(res.body);
+
                     var expectedWidgetURLS = {
                         http: "/api/v1/map/" + parsedBody.layergroupid + "/0/widget/" + widgetName
                     };
@@ -69,6 +70,15 @@ TestClient.prototype.getWidget = function(widgetName, params, callback) {
                     assert.ok(
                         parsedBody.metadata.layers[0].widgets[widgetName].url.http.match(expectedWidgetURLS.http)
                     );
+
+                    var expectedDataviewsURLS = {
+                        http: "/api/v1/map/" + parsedBody.layergroupid + "/dataview/" + widgetName
+                    };
+                    assert.ok(parsedBody.metadata.dataviews[widgetName]);
+                    assert.ok(
+                        parsedBody.metadata.dataviews[widgetName].url.http.match(expectedDataviewsURLS.http)
+                    );
+
                     return next(null, parsedBody.layergroupid);
                 }
             );
@@ -82,9 +92,12 @@ TestClient.prototype.getWidget = function(widgetName, params, callback) {
             var urlParams = {
                 own_filter: params.hasOwnProperty('own_filter') ? params.own_filter : 1
             };
-            if (params && params.bbox) {
-                urlParams.bbox = params.bbox;
-            }
+            ['bbox', 'bins', 'start', 'end'].forEach(function(extraParam) {
+                if (params.hasOwnProperty(extraParam)) {
+                    urlParams[extraParam] = params[extraParam];
+                }
+            });
+
             url = '/api/v1/map/' + layergroupId + '/0/widget/' + widgetName + '?' + qs.stringify(urlParams);
 
             assert.response(server,
@@ -113,7 +126,120 @@ TestClient.prototype.getWidget = function(widgetName, params, callback) {
         function finish(err, res) {
             self.keysToDelete['map_cfg|' + LayergroupToken.parse(layergroupId).token] = 0;
             self.keysToDelete['user:localhost:mapviews:global'] = 5;
-            return callback(err, res);
+            var widget;
+            if (!err && res.body) {
+                widget = JSON.parse(res.body);
+            }
+            return callback(err, res, widget);
+        }
+    );
+};
+
+TestClient.prototype.widgetSearch = function(widgetName, userQuery, params, callback) {
+    var self = this;
+
+    if (!callback) {
+        callback = params;
+        params = {};
+    }
+
+    var url = '/api/v1/map';
+    if (params && params.filters) {
+        url += '?' + qs.stringify({ filters: JSON.stringify(params.filters) });
+    }
+
+    var layergroupId;
+    step(
+        function createLayergroup() {
+            var next = this;
+            assert.response(server,
+                {
+                    url: url,
+                    method: 'POST',
+                    headers: {
+                        host: 'localhost',
+                        'Content-Type': 'application/json'
+                    },
+                    data: JSON.stringify(self.mapConfig)
+                },
+                {
+                    status: 200,
+                    headers: {
+                        'Content-Type': 'application/json; charset=utf-8'
+                    }
+                },
+                function(res, err) {
+                    if (err) {
+                        return next(err);
+                    }
+                    var parsedBody = JSON.parse(res.body);
+
+                    var expectedWidgetURLS = {
+                        http: "/api/v1/map/" + parsedBody.layergroupid + "/0/widget/" + widgetName
+                    };
+                    assert.ok(parsedBody.metadata.layers[0].widgets[widgetName]);
+                    assert.ok(
+                        parsedBody.metadata.layers[0].widgets[widgetName].url.http.match(expectedWidgetURLS.http)
+                    );
+
+                    var expectedDataviewsURLS = {
+                        http: "/api/v1/map/" + parsedBody.layergroupid + "/dataview/" + widgetName
+                    };
+                    assert.ok(parsedBody.metadata.dataviews[widgetName]);
+                    assert.ok(
+                        parsedBody.metadata.dataviews[widgetName].url.http.match(expectedDataviewsURLS.http)
+                    );
+
+                    return next(null, parsedBody.layergroupid);
+                }
+            );
+        },
+        function getWidgetSearchResult(err, _layergroupId) {
+            assert.ifError(err);
+
+            var next = this;
+            layergroupId = _layergroupId;
+
+            var urlParams = {
+                q: userQuery,
+                own_filter: params.hasOwnProperty('own_filter') ? params.own_filter : 1
+            };
+            if (params && params.bbox) {
+                urlParams.bbox = params.bbox;
+            }
+            url = '/api/v1/map/' + layergroupId + '/0/widget/' + widgetName + '/search?' + qs.stringify(urlParams);
+
+            assert.response(server,
+                {
+                    url: url,
+                    method: 'GET',
+                    headers: {
+                        host: 'localhost'
+                    }
+                },
+                {
+                    status: 200,
+                    headers: {
+                        'Content-Type': 'application/json; charset=utf-8'
+                    }
+                },
+                function(res, err) {
+                    if (err) {
+                        return next(err);
+                    }
+
+                    next(null, res);
+                }
+            );
+        },
+        function finish(err, res) {
+            self.keysToDelete['map_cfg|' + LayergroupToken.parse(layergroupId).token] = 0;
+            self.keysToDelete['user:localhost:mapviews:global'] = 5;
+            var searchResult;
+            if (!err && res.body) {
+                searchResult = JSON.parse(res.body);
+            }
+            return callback(err, res, searchResult);
         }
     );
 };
diff --git a/test/unit/cartodb/mapconfig/dataviews-widgets-adapter.test.js b/test/unit/cartodb/mapconfig/dataviews-widgets-adapter.test.js
new file mode 100644
index 00000000..797ce06e
--- /dev/null
+++ b/test/unit/cartodb/mapconfig/dataviews-widgets-adapter.test.js
@@ -0,0 +1,331 @@
+//require('../../../support/test_helper');
+var assert = require('assert');
+
+var DataviewsMapConfigAdapter = require('../../../../lib/cartodb/models/mapconfig/adapter/dataviews-widgets-adapter');
+
+describe('dataviews-widgets-adapter', function() {
+
+    var widgetsMapConfigs = [
+        {
+            "input": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "sql": "select * from populated_places_simple_reduced",
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            "widgets": {
+                                "country_places_count": {
+                                    "type": "aggregation",
+                                    "options": {
+                                        "column": "adm0_a3",
+                                        "aggregation": "count"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            },
+            "expected": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "source": {
+                                "id": "cdb-layer-source-0"
+                            },
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            // keep them for now
+                            "widgets": {
+                                "country_places_count": {
+                                    "type": "aggregation",
+                                    "options": {
+                                        "column": "adm0_a3",
+                                        "aggregation": "count"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ],
+                "analyses": [
+                    {
+                        "id": "cdb-layer-source-0",
+                        "type": "source",
+                        "params": {
+                            "query": "select * from populated_places_simple_reduced"
+                        }
+                    }
+                ],
+                "dataviews": {
+                    "country_places_count": {
+                        "source": {
+                            "id": "cdb-layer-source-0"
+                        },
+                        "type": "aggregation",
+                        "options": {
+                            "column": "adm0_a3",
+                            "aggregation": "count"
+                        }
+                    }
+                }
+            }
+        },
+        {
+            "input": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "sql": "select * from populated_places_simple_reduced",
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            "widgets": {
+                                "pop_max": {
+                                    "type": "histogram",
+                                    "options": {
+                                        "column": "pop_max"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            },
+            "expected": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "source": {
+                                "id": "cdb-layer-source-0"
+                            },
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            // keep them for now
+                            "widgets": {
+                                "pop_max": {
+                                    "type": "histogram",
+                                    "options": {
+                                        "column": "pop_max"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ],
+                "analyses": [
+                    {
+                        "id": "cdb-layer-source-0",
+                        "type": "source",
+                        "params": {
+                            "query": "select * from populated_places_simple_reduced"
+                        }
+                    }
+                ],
+                "dataviews": {
+                    "pop_max": {
+                        "source": {
+                            "id": "cdb-layer-source-0"
+                        },
+                        "type": "histogram",
+                        "options": {
+                            "column": "pop_max"
+                        }
+                    }
+                }
+            }
+        },
+        {
+            "input": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "sql": "select * from test_table",
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            "widgets": {
+                                "names": {
+                                    "type": "list",
+                                    "options": {
+                                        "columns": [
+                                            "name"
+                                        ]
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            },
+            "expected": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "source": {
+                                "id": "cdb-layer-source-0"
+                            },
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            // keep them for now
+                            "widgets": {
+                                "names": {
+                                    "type": "list",
+                                    "options": {
+                                        "columns": [
+                                            "name"
+                                        ]
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ],
+                "analyses": [
+                    {
+                        "id": "cdb-layer-source-0",
+                        "type": "source",
+                        "params": {
+                            "query": "select * from test_table"
+                        }
+                    }
+                ],
+                "dataviews": {
+                    "names": {
+                        "source": {
+                            "id": "cdb-layer-source-0"
+                        },
+                        "type": "list",
+                        "options": {
+                            "columns": [
+                                "name"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        {
+            "input": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "sql": "select * from populated_places_simple_reduced",
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            "widgets": {
+                                "country_places_count": {
+                                    "type": "aggregation",
+                                    "options": {
+                                        "column": "adm0_a3",
+                                        "aggregation": "count"
+                                    }
+                                },
+                                "country_places_histogram": {
+                                    "type": "histogram",
+                                    "options": {
+                                        "column": "pop_max"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ]
+            },
+            "expected": {
+                "version": "1.4.0",
+                "layers": [
+                    {
+                        "type": "mapnik",
+                        "options": {
+                            "source": {
+                                "id": "cdb-layer-source-0"
+                            },
+                            "cartocss": "#layer { marker-fill: red; marker-width: 32; marker-allow-overlap: true; }",
+                            "cartocss_version": "2.3.0",
+                            // keep them for now
+                            "widgets": {
+                                "country_places_count": {
+                                    "type": "aggregation",
+                                    "options": {
+                                        "column": "adm0_a3",
+                                        "aggregation": "count"
+                                    }
+                                },
+                                "country_places_histogram": {
+                                    "type": "histogram",
+                                    "options": {
+                                        "column": "pop_max"
+                                    }
+                                }
+                            }
+                        }
+                    }
+                ],
+                "analyses": [
+                    {
+                        "id": "cdb-layer-source-0",
+                        "type": "source",
+                        "params": {
+                            "query": "select * from populated_places_simple_reduced"
+                        }
+                    }
+                ],
+                "dataviews": {
+                    "country_places_count": {
+                        "source": {
+                            "id": "cdb-layer-source-0"
+                        },
+                        "type": "aggregation",
+                        "options": {
+                            "column": "adm0_a3",
+                            "aggregation": "count"
+                        }
+                    },
+                    "country_places_histogram": {
+                        "source": {
+                            "id": "cdb-layer-source-0"
+                        },
+                        "type": "histogram",
+                        "options": {
+                            "column": "pop_max"
+                        }
+                    }
+                }
+            }
+        }
+    ];
+
+    var user = 'wadus';
+    function params() {
+        return {};
+    }
+    function context() {
+        return {};
+    }
+
+    var dataviewsMapConfigAdapter = new DataviewsMapConfigAdapter();
+
+    widgetsMapConfigs.forEach(function(mapConfig, index) {
+        it('should adapt widgets ' + index, function(done) {
+            dataviewsMapConfigAdapter.getMapConfig(user, mapConfig.input, params(), context(), function(err, result) {
+                assert.deepEqual(result, mapConfig.expected);
+                done();
+            });
+        });
+    });
+
+});
diff --git a/test/unit/cartodb/model/filter/bbox-filters.test.js b/test/unit/cartodb/model/filter/bbox-filters.test.js
new file mode 100644
index 00000000..df894892
--- /dev/null
+++ b/test/unit/cartodb/model/filter/bbox-filters.test.js
@@ -0,0 +1,129 @@
+require('../../../../support/test_helper');
+var util = require('util');
+
+var assert = require('../../../../support/assert');
+var BboxFilter = require('../../../../../lib/cartodb/models/filter/bbox');
+
+var MAX_EXTENT_MERCATOR_REF = [
+    -BboxFilter.LONGITUDE_MAX_VALUE,
+    -BboxFilter.LATITUDE_MAX_VALUE,
+    BboxFilter.LONGITUDE_MAX_VALUE,
+    BboxFilter.LATITUDE_MAX_VALUE
+];
+
+describe('Bounding box filter', function() {
+
+    describe('wrap longitude', function() {
+        var longitudesScenarios = [
+            [[0, 90], [0, 90]],
+            [[-90, 0], [-90, 0]],
+            [[-90, 90], [-90, 90]],
+            [[-990, -720], [90, 360]],
+            [[810, 1080], [90, 360]],
+            [[-180, 180], [-180, 180]]
+        ];
+
+        longitudesScenarios.forEach(function(scenario) {
+            it(util.format('should adjust from %j to %j', scenario[0], scenario[1]), function() {
+                var we = BboxFilter.adjustLongitudeRange(scenario[0]);
+
+                assert.equal(
+                    we[0], scenario[1][0],
+                    util.format('west, got %d, expected %d, scenario: %s',
+                        we[1], scenario[1][1], JSON.stringify(scenario)
+                    )
+                );
+                assert.equal(
+                    we[1], scenario[1][1],
+                    util.format('east, got %d, expected %d, scenario: %s',
+                        we[1], scenario[1][1], JSON.stringify(scenario)
+                    )
+                );
+            });
+        });
+    });
+
+    function createFilter(bbox) {
+        return new BboxFilter({}, { bbox: bbox.join(',') });
+    }
+
+    function createRef(bbox) {
+        return bbox;
+//        return mercator.forward([bbox[0], bbox[1]]).concat(mercator.forward([bbox[2], bbox[3]]));
+    }
+
+
+    it('happy case', function() {
+        var bbox = [-90, -45, 90, 45];
+        var bboxFilter = createFilter(bbox);
+        assert.equal(bboxFilter.bboxes.length, 1);
+        assert.deepEqual(bboxFilter.bboxes[0], createRef(bbox));
+    });
+
+    describe('latitude', function() {
+        it('(hardcoded) clipping out of bounds', function() {
+            var bbox = [-180, -90, 180, 90];
+            var bboxFilter = createFilter(bbox);
+            assert.equal(bboxFilter.bboxes.length, 1);
+            assert.deepEqual(bboxFilter.bboxes[0], MAX_EXTENT_MERCATOR_REF);
+        });
+
+        it('clipping out of bounds', function() {
+            var bbox = [-180, -90, 180, 90];
+            var bboxFilter = createFilter(bbox);
+            assert.equal(bboxFilter.bboxes.length, 1);
+            assert.deepEqual(
+                bboxFilter.bboxes[0],
+                createRef([-180, -BboxFilter.LATITUDE_MAX_VALUE, 180, BboxFilter.LATITUDE_MAX_VALUE])
+            );
+        });
+    });
+
+    describe('longitude', function() {
+        it('generating multiple bbox for east out of bounds', function() {
+            var bbox = [90, -45, 360, 45];
+            var bboxFilter = createFilter(bbox);
+
+            assert.equal(bboxFilter.bboxes.length, 2, JSON.stringify([bboxFilter.bboxes, bbox]));
+
+            assert.deepEqual(
+                bboxFilter.bboxes[0],
+                createRef([90, -45, 180, 45])
+            );
+            assert.deepEqual(
+                bboxFilter.bboxes[1],
+                createRef([-180, -45, 0, 45])
+            );
+        });
+
+        it('generating multiple bbox for east out of bounds', function() {
+            var bbox = [-270, -45, 0, 45];
+            var bboxFilter = createFilter(bbox);
+
+            assert.equal(bboxFilter.bboxes.length, 2);
+
+            assert.deepEqual(
+                bboxFilter.bboxes[0],
+                createRef([90, -45, 180, 45])
+            );
+            assert.deepEqual(
+                bboxFilter.bboxes[1],
+                createRef([-180, -45, 0, 45])
+            );
+        });
+    });
+
+    describe('out of bounds', function() {
+        it('wraps longitude', function () {
+            var bbox = [-190, -45, 190, 45];
+            var bboxFilter = createFilter(bbox);
+
+            assert.equal(bboxFilter.bboxes.length, 1);
+
+            assert.deepEqual(
+                bboxFilter.bboxes[0],
+                createRef([-180, -45, 180, 45])
+            );
+        });
+    });
+});