1 files changed, 5 insertions, 1 deletions
diff --git a/js/test/main.js b/js/test/main.js
index 0a8505f..edebe86 100644
--- a/js/test/main.js
+++ b/js/test/main.js
@@ -46,13 +46,17 @@ ava.test.beforeEach(t => {
     global.XMLHttpRequest = t.context.xhr;};
   function minor_mocks() {
     var document = {};
+    document.createElement = ()=>
+      {return {innerHTML: "",
+               setAttribute: function(a, b){}}};
     document.addEventListener = ()=>{};
     document.getElementsByClassName = ()=>
       {return [{style: {visibility: "hidden"}}]};
     document.getElementById = ()=>
       /* pacifies code that attempts
        * to change this property anyway.  */
-      {return {style: {visibility: "hidden"}}};
+      {return {style: {visibility: "hidden"},
+               appendChild: function(a){}}};
     global.document = document;
     global.alert = console.log;
     // disable logging for tests