Add specs for the selected and unselected binding routines.

@@ -169,6 +169,38 @@ describe('Rivets', function() {
         });
       });
     });
+
+    describe('selected', function() {
+      describe('with a truthy value', function() {
+        it('selects the element', function() {
+          rivets.routines.selected(el, true);
+          expect(el.selected).toBe(true);
+        });
+      });
+
+      describe('with a falsey value', function() {
+        it('unselects the element', function() {
+          rivets.routines.selected(el, false);
+          expect(el.selected).toBe(false);
+        });
+      });
+    });
+
+    describe('unselected', function() {
+      describe('with a truthy value', function() {
+        it('unselects the element', function() {
+          rivets.routines.unselected(el, true);
+          expect(el.selected).toBe(false);
+        });
+      });
+
+      describe('with a falsey value', function() {
+        it('selects the element', function() {
+          rivets.routines.unselected(el, false);
+          expect(el.selected).toBe(true);
+        });
+      });
+    });
   });
 
   describe('Binds', function() {