open-cursor.html - Android社区 - https://www.androidos.net.cn/

<html>
<head>
<link rel="stylesheet" href="../../fast/js/resources/js-test-style.css">
<script src="../../fast/js/resources/js-test-pre.js"></script>
<script src="../../fast/js/resources/js-test-post-function.js"></script>
<script src="resources/shared.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>

description("Test IndexedDB's openCursor.");
if (window.layoutTestController)
    layoutTestController.waitUntilDone();

function emptyCursorSuccess()
{
    debug("Empty cursor opened successfully.")
    // FIXME: check that we can iterate the cursor.
    done();
}

function openEmptyCursor()
{
    debug("Opening an empty cursor.");
    keyRange = webkitIDBKeyRange.lowerBound("InexistentKey");
    request = evalAndLog("objectStore.openCursor(keyRange)");
    request.onsuccess = emptyCursorSuccess;
    request.onerror = unexpectedErrorCallback;
}

function cursorSuccess()
{
    debug("Cursor opened successfully.")
    // FIXME: check that we can iterate the cursor.
    shouldBe("event.target.result.direction", "0");
    shouldBe("event.target.result.key", "'myKey'");
    shouldBe("event.target.result.value", "'myValue'");
    debug("");
    try {
        debug("Passing an invalid key into .continue().");
        event.target.result.continue([]);
        testFailed("No exception thrown");
    } catch (e) {
        testPassed("Caught exception: " + e.toString());
    }
    debug("");
    openEmptyCursor();
}

function openCursor()
{
    debug("Opening cursor");
    keyRange = webkitIDBKeyRange.lowerBound("myKey");
    request = evalAndLog("event.target.source.openCursor(keyRange)");
    request.onsuccess = cursorSuccess;
    request.onerror = unexpectedErrorCallback;
}

function setVersionSuccess()
{
    debug("setVersionSuccess():");
    window.trans = evalAndLog("trans = event.target.result");
    shouldBeTrue("trans !== null");
    trans.onabort = unexpectedAbortCallback;

    deleteAllObjectStores(db);

    var objectStore = evalAndLog("objectStore = db.createObjectStore('test')");
    request = evalAndLog("objectStore.add('myValue', 'myKey')");
    request.onsuccess = openCursor;
    request.onerror = unexpectedErrorCallback;
}
 
function openSuccess()
{
    var db = evalAndLog("db = event.target.result");
 
    request = evalAndLog("db.setVersion('new version')");
    request.onsuccess = setVersionSuccess;
    request.onerror = unexpectedErrorCallback;
}
 
function test()
{
    request = evalAndLog("webkitIndexedDB.open('open-cursor')");
    request.onsuccess = openSuccess;
    request.onerror = unexpectedErrorCallback;
}

test();

var successfullyParsed = true;

</script>
</body>
</html>