diff -r 000000000000 -r 6474c204b198 dom/indexedDB/test/unit/test_setVersion.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/indexedDB/test/unit/test_setVersion.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+/**
+ * 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";
+
+  let request = indexedDB.open(name, 1);
+  request.onerror = errorHandler;
+  request.onsuccess = grabEventAndContinueHandler;
+  let event = yield undefined;
+
+  let db = event.target.result;
+
+  // Check default state.
+  is(db.version, 1, "Correct default version for a new database.");
+
+  const versions = [
+    7,
+    42,
+  ];
+
+  db.close();
+
+  for (let i = 0; i < versions.length; i++) {
+    let version = versions[i];
+
+    let request = indexedDB.open(name, version);
+    request.onerror = errorHandler;
+    request.onupgradeneeded = grabEventAndContinueHandler;
+    let event = yield undefined;
+
+    let db = event.target.result;
+
+    is(db.version, version, "Database version number updated correctly");
+    is(event.target.transaction.mode, "versionchange", "Correct mode");
+
+    executeSoon(function() { testGenerator.next(); });
+    yield undefined;
+    db.close();
+  }
+
+  finishTest();
+  yield undefined;
+}
+