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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /IndexedDB/idbcursor-reused.htm - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>IDBCursor is reused</title>
<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
<meta rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-continue-void-any-key">
<meta rel=assert title="Otherwise this method runs the steps for asynchronously executing a request. However, the steps are slightly modified such that instead of creating a new IDBRequest, it reuses the request originally created when this cursor was created. The done flag on the request is set to false before the request is returned. The steps are run with the cursor's source as source and the steps for iterating a cursor as operation, using this cursor as cursor and the key parameter as key.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/support.js"></script>
<script>
var db
var open_rq = createdb(async_test())
open_rq.onupgradeneeded = function(e) {
db = e.target.result
var os = db.createObjectStore("test")
os.add("data", "k")
os.add("data2", "k2")
}
open_rq.onsuccess = function(e) {
var cursor
var count = 0
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").openCursor()
rq.onsuccess = this.step_func(function(e)
{
switch(count)
{
case 0:
cursor = e.target.result
assert_equals(cursor.value, "data", "prequisite cursor.value")
cursor.custom_cursor_value = 1
e.target.custom_request_value = 2
cursor.continue()
break
case 1:
assert_equals(cursor.value, "data2", "prequisite cursor.value")
assert_equals(cursor.custom_cursor_value, 1, "custom cursor value")
assert_equals(e.target.custom_request_value, 2, "custom request value")
cursor.advance(1)
break
case 2:
assert_false(!!e.target.result, "got cursor")
assert_equals(cursor.custom_cursor_value, 1, "custom cursor value")
assert_equals(e.target.custom_request_value, 2, "custom request value")
break
}
count++
})
rq.transaction.oncomplete = this.step_func(function() {
assert_equals(count, 3, "cursor callback runs")
assert_equals(rq.custom_request_value, 2, "variable placed on old IDBRequest")
assert_equals(cursor.custom_cursor_value, 1, "custom cursor value (transaction.complete)")
this.done()
})
}
</script>
<div id="log"></div>