third_party/web_platform_tests/IndexedDB/idbdatabase_createObjectStore11.htm - cobalt - Git at Google

 <!DOCTYPE html>
 <meta charset="utf-8">
 <title>IDBDatabase.createObjectStore() - attempting to create an existing object store with a different keyPath throw ConstraintError </title>
 <link rel="author" title="Intel" href="http://www.intel.com">
 <link rel="help" href="https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBDatabase-createObjectStore-IDBObjectStore-DOMString-name-IDBObjectStoreParameters-optionalParameters">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="support.js"></script>
 <div id="log"></div>
 <script>
 var t = async_test(),
     open_rq = createdb(t);

 open_rq.onupgradeneeded = function (e) {
     var db = e.target.result;
     db.createObjectStore("store");
     assert_throws("ConstraintError", function(){
         db.createObjectStore("store", {
             keyPath: "key1",
         });
     });
     t.done();
 }
 </script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<title>IDBDatabase.createObjectStore() - attempting to create an existing object store with a different keyPath throw ConstraintError </title>
	<link rel="author" title="Intel" href="http://www.intel.com">
	<link rel="help" href="https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBDatabase-createObjectStore-IDBObjectStore-DOMString-name-IDBObjectStoreParameters-optionalParameters">
	<script src="/resources/testharness.js"></script>
	<script src="/resources/testharnessreport.js"></script>
	<script src="support.js"></script>
	<div id="log"></div>
	<script>
	var t = async_test(),
	open_rq = createdb(t);

	open_rq.onupgradeneeded = function (e) {
	var db = e.target.result;
	db.createObjectStore("store");
	assert_throws("ConstraintError", function(){
	db.createObjectStore("store", {
	keyPath: "key1",
	});
	});
	t.done();
	}
	</script>