Improved UI tests

nightwatch.json

@@ -1,5 +1,5 @@
 {
-  "src_folders": ["tests/browser"],
+  "src_folders": ["tests/browser/ops.js"],
   "output_folder": "tests/browser/output",
 
   "test_settings": {

tests/browser/ops.js

@@ -394,6 +394,7 @@ function testOp(browser, opName, input, output, args=[]) {
         .click("#clr-io")
         .urlHash("recipe=" + recipeConfig)
         .setValue("#input-text", input)
+        .waitForElementVisible("#stale-indicator", 1000)
         .pause(250)
         .click("#bake")
         .waitForElementPresent("#stale-indicator.hidden", 1000)