diff -r 000000000000 -r 6474c204b198 dom/indexedDB/test/unit/test_cursor_update_updates_indexes.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/indexedDB/test/unit/test_cursor_update_updates_indexes.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,94 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var testGenerator = testSteps();
+
+function testSteps()
+{
+  const name = this.window ? window.location.pathname : "Splendid Test";
+  const START_DATA = "hi";
+  const END_DATA = "bye";
+  const objectStoreInfo = [
+    { name: "1", options: { keyPath: null }, key: 1,
+      entry: { data: START_DATA } },
+    { name: "2", options: { keyPath: "foo" },
+      entry: { foo: 1, data: START_DATA } },
+    { name: "3", options: { keyPath: null, autoIncrement: true },
+      entry: { data: START_DATA } },
+    { name: "4", options: { keyPath: "foo", autoIncrement: true },
+      entry: { data: START_DATA } },
+  ];
+
+  for (let i = 0; i < objectStoreInfo.length; i++) {
+    // Create our object stores.
+    let info = objectStoreInfo[i];
+
+    ok(true, "1");
+    request = indexedDB.open(name, i + 1);
+    request.onerror = errorHandler;
+    request.onupgradeneeded = grabEventAndContinueHandler;
+    event = yield undefined;
+
+    let db = event.target.result;
+
+    ok(true, "2");
+    let objectStore = info.hasOwnProperty("options") ?
+                      db.createObjectStore(info.name, info.options) :
+                      db.createObjectStore(info.name);
+
+    // Create the indexes on 'data' on the object store.
+    let index = objectStore.createIndex("data_index", "data",
+                                        { unique: false });
+    let uniqueIndex = objectStore.createIndex("unique_data_index", "data",
+                                              { unique: true });
+    // Populate the object store with one entry of data.
+    request = info.hasOwnProperty("key") ?
+              objectStore.add(info.entry, info.key) :
+              objectStore.add(info.entry);
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+    ok(true, "3");
+
+    // Use a cursor to update 'data' to END_DATA.
+    request = objectStore.openCursor();
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+    ok(true, "4");
+
+    let cursor = request.result;
+    let obj = cursor.value;
+    obj.data = END_DATA;
+    request = cursor.update(obj);
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+    ok(true, "5");
+
+    // Check both indexes to make sure that they were updated.
+    request = index.get(END_DATA);
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+    ok(true, "6");
+    ok(obj.data, event.target.result.data,
+                  "Non-unique index was properly updated.");
+
+    request = uniqueIndex.get(END_DATA);
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+
+    ok(true, "7");
+    ok(obj.data, event.target.result.data,
+                  "Unique index was properly updated.");
+    db.close();
+  }
+
+  finishTest();
+  yield undefined;
+}
+