1 files changed, 6 insertions, 0 deletions
diff --git a/test/FiltersSpec.js b/test/FiltersSpec.js
index 3e5ca9a6..fbaceac6 100644
--- a/test/FiltersSpec.js
+++ b/test/FiltersSpec.js
@@ -100,6 +100,12 @@ describe('filter', function(){
         midnight.getTimezoneOffset =
           function() { return 7 * 60; };
 
+    it('should ignore falsy inputs', function() {
+      expect(filter.date(null)).toEqual(null);
+      expect(filter.date('')).toEqual('');
+      expect(filter.date(123)).toEqual(123);
+    });
+
     it('should do basic filter', function() {
       expect(filter.date(noon)).toEqual(noon.toLocaleDateString());
       expect(filter.date(noon, '')).toEqual(noon.toLocaleDateString());