diff --git a/dev/js/spec/utilSpec.js b/dev/js/spec/utilSpec.js
index b42102a..895a5e9 100644
--- a/dev/js/spec/utilSpec.js
+++ b/dev/js/spec/utilSpec.js
@@ -15,5 +15,26 @@
       expect('korap test'.slugify()).toEqual('korap-test');
       expect('Korap Test'.slugify()).toEqual('korap-test');
     });
-  })
+  });
+
+    describe('KorAP.util.initTogllePwdVisibility', function () {
+        it('should toggle', function () {
+            const div = document.createElement('div');
+            let input = div.addE('input');
+            input.setAttribute('type', 'password');
+            input.setAttribute('class', 'show-pwd');
+
+            expect(div.children.length).toEqual(1);
+            initTogglePwdVisibility(div);
+            expect(div.children.length).toEqual(2);
+            expect(div.lastChild.tagName).toEqual("A");
+            expect(div.lastChild.classList.contains("hide")).toBeFalsy();
+            expect(input.getAttribute("type")).toEqual("password");
+
+            div.lastChild.click();
+
+            expect(input.getAttribute("type")).toEqual("text");
+            expect(div.lastChild.classList.contains("hide")).toBeTruthy();
+        });
+    });
 });