1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/idbdatabase_createObjectStore4.htm b/testing/web-platform/tests/IndexedDB/idbdatabase_createObjectStore4.htm
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index 000000000..07d787bd9
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+++ b/testing/web-platform/tests/IndexedDB/idbdatabase_createObjectStore4.htm
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>IDBDatabase.createObjectStore() - attempt to create an object store that already exists </title>
+<link rel="author" title="Microsoft" href="http://www.microsoft.com">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support.js"></script>
+
+<script>
+
+var t = async_test(),
+    open_rq = createdb(t)
+
+open_rq.onupgradeneeded = function(e) {
+    var db = e.target.result
+    db.createObjectStore("dupe")
+    assert_throws(
+        'ConstraintError',
+        function() { db.createObjectStore("dupe") })
+
+    // Bonus test creating a new objectstore after the exception
+    db.createObjectStore("dupe ")
+    t.done()
+}
+
+</script>
+
+<div id="log"></div>