| <!doctype html> |
| <meta charset="utf-8"> |
| <meta name="timeout" content="long"> |
| <title>IndexedDB: Parallel iteration of cursors in upgradeneeded</title> |
| <link rel="author" href="pwnall@chromium.org" title="Victor Costan"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support-promises.js"></script> |
| <script> |
| 'use strict'; |
| |
| for (let cursorCount of [2, 10, 100, 1000, 10000]) { |
| promise_test(testCase => { |
| return createDatabase(testCase, (database, transaction) => { |
| const store = database.createObjectStore('cache', { keyPath: 'key' }); |
| store.put({ key: '42' }); |
| |
| const promises = []; |
| |
| for (let j = 0; j < 2; j += 1) { |
| const promise = new Promise((resolve, reject) => { |
| let request = null; |
| for (let i = 0; i < cursorCount / 2; i += 1) { |
| request = store.openCursor(); |
| } |
| |
| let continued = false; |
| request.onsuccess = testCase.step_func(() => { |
| const cursor = request.result; |
| |
| if (!continued) { |
| assert_equals(cursor.key, '42'); |
| assert_equals(cursor.value.key, '42'); |
| continued = true; |
| cursor.continue(); |
| } else { |
| assert_equals(cursor, null); |
| resolve(); |
| } |
| }); |
| request.onerror = () => reject(request.error); |
| }); |
| promises.push(promise); |
| } |
| return Promise.all(promises); |
| }).then(database => { |
| database.close(); |
| }); |
| }, `${cursorCount} cursors`); |
| } |
| |
| </script> |
