| <!DOCTYPE html> |
| <title>IDBCursor.advance() - index - attempt to advance backwards</title> |
| <link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal"> |
| <link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count"> |
| <link rel=assert title="The value passed into the count parameter was zero or a negative number."> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script src="support.js"></script> |
| |
| <script type="text/javascript"> |
| |
| var db, |
| t = async_test(document.title, {timeout: 10000}), |
| records = [ { pKey: "primaryKey_0", iKey: "indexKey_0" }, |
| { pKey: "primaryKey_1", iKey: "indexKey_1" } ]; |
| |
| var open_rq = createdb(t); |
| open_rq.onupgradeneeded = function(e) { |
| db = e.target.result; |
| var objStore = db.createObjectStore("test", { keyPath:"pKey" }); |
| |
| objStore.createIndex("index", "iKey"); |
| |
| for (var i = 0; i < records.length; i++) |
| objStore.add(records[i]); |
| }; |
| |
| open_rq.onsuccess = function(e) { |
| var cursor_rq = db.transaction("test") |
| .objectStore("test") |
| .index("index") |
| .openCursor(undefined, "next"); |
| |
| cursor_rq.onsuccess = t.step_func(function(e) { |
| var cursor = e.target.result; |
| |
| assert_true(cursor != null, "cursor exist"); |
| assert_throws(new TypeError(), |
| function() { cursor.advance(-1); }); |
| |
| t.done(); |
| }); |
| }; |
| |
| </script> |
| |
| <div id="log"></div> |
