diff --git a/ckan/public/base/test/spec/plugins/jquery.url-helpers.spec.js b/ckan/public/base/test/spec/plugins/jquery.url-helpers.spec.js
index 456610c0fec..a16ca561af7 100644
--- a/ckan/public/base/test/spec/plugins/jquery.url-helpers.spec.js
+++ b/ckan/public/base/test/spec/plugins/jquery.url-helpers.spec.js
@@ -1,3 +1,4 @@
+/*globals describe it assert jQuery*/
 describe('jQuery.url', function () {
   describe('jQuery.url.escape', function () {
     it('should escape special characters', function () {
@@ -10,4 +11,37 @@ describe('jQuery.url', function () {
       assert.equal(target, '+');
     });
   });
+
+  describe('jQuery.url.slugify', function () {
+    it('should replace spaces with hyphens', function () {
+      var target = jQuery.url.slugify('apples and pears');
+      assert.equal(target, 'apples-and-pears');
+    });
+
+    it('should lowecase all characters', function () {
+      var target = jQuery.url.slugify('APPLES AND PEARS');
+      assert.equal(target, 'apples-and-pears');
+    });
+
+    it('should convert unknown characters to hyphens', function () {
+      var target = jQuery.url.slugify('apples & pears');
+      assert.equal(target, 'apples-pears');
+    });
+
+    it('should nomalise hyphens', function () {
+      var target = jQuery.url.slugify('apples---pears');
+      assert.equal(target, 'apples-pears', 'remove duplicate hyphens');
+
+      target = jQuery.url.slugify('--apples-pears');
+      assert.equal(target, 'apples-pears', 'strip preceding hyphens');
+
+      target = jQuery.url.slugify('apples-pears--');
+      assert.equal(target, 'apples-pears', 'strip trailing hyphens');
+    });
+
+    it('should try and asciify unicode characters', function () {
+      var target = jQuery.url.slugify('éåøç');
+      assert.equal(target, 'eaoc');
+    });
+  });
 });