chore(progressbar): add test

Author: wesleycho

src/progressbar/progressbar.js

@@ -25,7 +25,7 @@ angular.module('ui.bootstrap.progressbar', [])
     bar.$watch('value', function(value) {
       bar.recalculatePercentage();
     });
-    
+
     bar.recalculatePercentage = function() {
       var totalPercentage = self.bars.reduce(function(total, bar) {
         bar.percent = +(100 * bar.value / bar.max).toFixed(2);

src/progressbar/test/progressbar.spec.js

@@ -315,6 +315,30 @@ describe('progressbar directive', function() {
         }
         expect(totalWidth.toFixed(2)).toBe('100.00');
       });
+
+      it('should not have a total width over 100%', function() {
+        $rootScope.objects = [
+          { value: 60, type: 'warning' },
+          { value: 103 },
+          { value: 270, type: 'info' }
+        ];
+        $rootScope.max = 433;
+        $rootScope.$digest();
+        var totalWidth = 0;
+        for (var i = 0; i < 3; i++) {
+          totalWidth += parseFloat(getBar(i).css('width'));
+        }
+        expect(totalWidth.toFixed(2)).toBe('100.00');
+
+        $rootScope.objects.splice(2, 1);
+        $rootScope.max = 163;
+        $rootScope.$digest();
+        totalWidth = 0;
+        for (var i = 0; i < 2; i++) {
+          totalWidth += parseFloat(getBar(i).css('width'));
+        }
+        expect(totalWidth.toFixed(2)).toBe('100.00');
+      });
     });
   });
 });