initial checkin of features unit tests

js/id/renderer/features.js

@@ -209,21 +209,6 @@ iD.Features = function(context) {
         }
     };
 
-    features.setAll = function(val) {
-        if (val !== undefined) {
-            _.each(feature, function(f) { return val ? f.enable() : f.disable(); });
-            update();
-        }
-    };
-
-    features.enableAll = function() {
-        features.setAll(true);
-    };
-
-    features.disableAll = function() {
-        features.setAll(false);
-    };
-
     features.count = function(k) {
         return feature[k] && feature[k].count;
     };

test/index.html

@@ -259,6 +259,7 @@
 
     <script src="spec/renderer/tile_layer.js"></script>
     <script src="spec/renderer/background_source.js"></script>
+    <script src="spec/renderer/features.js"></script>
     <script src="spec/renderer/map.js"></script>
 
     <script src="spec/svg.js"></script>

test/index_packaged.html

@@ -67,6 +67,7 @@
 
     <script src="spec/renderer/tile_layer.js"></script>
     <script src="spec/renderer/background_source.js"></script>
+    <script src="spec/renderer/features.js"></script>
     <script src="spec/renderer/map.js"></script>
 
     <script src="spec/svg.js"></script>

test/spec/renderer/features.js

@@ -0,0 +1,39 @@
+describe('iD.Features', function() {
+    var context, features;
+
+    beforeEach(function() {
+        context = iD();
+        features = context.features();
+    });
+
+    it('returns feature keys', function() {
+        var keys = features.keys();
+        expect(keys).to.have.members([
+            'points', 'major_roads', 'minor_roads', 'paths',
+            'buildings', 'landuse', 'boundaries', 'water', 'rail',
+            'power', 'past_future', 'others'
+        ]);
+    });
+
+    it('disables and enables features', function() {
+        var enabled, disabled;
+
+        features.disable('water');
+        features.disable('rail');
+        enabled = features.enabled();
+        disabled = features.disabled();
+
+        expect(enabled).to.not.have.members(['water', 'rail']);
+        expect(disabled).to.have.members(['water', 'rail']);
+
+        features.enable('water');
+        enabled = features.enabled();
+        disabled = features.disabled();
+
+        expect(enabled).to.include('water');
+        expect(enabled).to.not.include('rail');
+        expect(disabled).to.include('rail');
+        expect(disabled).to.not.include('water');
+    });
+
+});