diff --git a/seed/challenges/upper-intermediate-bonfires.json b/seed/challenges/upper-intermediate-bonfires.json
index b1ddbc2ac1e..24b1dd01156 100644
--- a/seed/challenges/upper-intermediate-bonfires.json
+++ b/seed/challenges/upper-intermediate-bonfires.json
@@ -27,7 +27,12 @@
         "assert.deepEqual(bob.lastName, undefined, 'message: <code>bob.lastName</code> should return undefined.');",
         "assert.deepEqual(bob.getFirstName(), 'Bob', 'message: <code>bob.getFirstName()</code> should return \"Bob\".');",
         "assert.deepEqual(bob.getLastName(), 'Ross', 'message: <code>bob.getLastName()</code> should return \"Ross\".');",
-        "assert.deepEqual(bob.getFullName(), 'Bob Ross', 'message: <code>bob.getFullName()</code> should return \"Bob Ross\".');"
+        "assert.deepEqual(bob.getFullName(), 'Bob Ross', 'message: <code>bob.getFullName()</code> should return \"Bob Ross\".');",
+        "assert.strictEqual((function () { bob.setFirstName(\"Haskell\"); return bob.getFullName(); })(), 'Haskell Ross', 'message: <code>bob.getFullName()</code> should return \"Haskell Ross\" after <code>bob.setFirstName(\"Haskell\")</code>.');",
+        "assert.strictEqual((function () { bob.setLastName(\"Curry\"); return bob.getFullName(); })(), 'Bob Curry', 'message: <code>bob.getFullName()</code> should return \"Bob Curry\" after <code>bob.setLastName(\"Curry\")</code>.');",
+        "assert.strictEqual((function () { bob.setFullName(\"Haskell Curry\"); return bob.getFullName(); })(), 'Haskell Curry', 'message: <code>bob.getFullName()</code> should return \"Haskell Curry\" after <code>bob.setFullName(\"Haskell Curry\")</code>.');",
+        "assert.strictEqual((function () { bob.setFullName(\"Haskell Curry\"); return bob.getFirstName(); })(), 'Haskell', 'message: <code>bob.getFirstName()</code> should return \"Haskell\" after <code>bob.setFullName(\"Haskell Curry\")</code>.');",
+        "assert.strictEqual((function () { bob.setFullName(\"Haskell Curry\"); return bob.getLastName(); })(), 'Curry', 'message: <code>bob.getLastName()</code> should return \"Curry\" after <code>bob.setFullName(\"Haskell Curry\")</code>.');"
       ],
       "MDNlinks": [
         "Closures",