diff --git a/tests/browser/browserUtils.js b/tests/browser/browserUtils.js
index 4a559758..18a56b49 100644
--- a/tests/browser/browserUtils.js
+++ b/tests/browser/browserUtils.js
@@ -176,13 +176,14 @@ function loadRecipe(browser, opName, input, args) {
  */
 function expectOutput(browser, expected) {
     browser.execute(expected => {
-        const output = window.app.manager.output.outputEditorView.state.doc.toString();
+        return window.app.manager.output.outputEditorView.state.doc.toString();
+    }, [expected], function({value}) {
         if (expected instanceof RegExp) {
-            return expected.test(output);
+            browser.expect(value).match(expected);
         } else {
-            return expected === output;
+            browser.expect(value).to.be.equal(expected);
         }
-    }, [expected]);
+    });
 }
 
 /** @function