| <!DOCTYPE html> |
| <html> |
| <!-- |
| Copyright 2024 The Chromium Authors |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| <head> |
| <title>IDB test for a large value that gets wrapped in a blob</title> |
| <script type="text/javascript" src="common.js"></script> |
| <script> |
| |
| // Constants |
| const databaseName = 'large_value_db'; |
| const storeName = 'large_value_store'; |
| const id = 0; |
| // Use a large array of random numbers so that it's not compressible and gets |
| // stored as a blob. |
| const data = Array.from({ length: 10000 }, () => Math.random()).join(""); |
| |
| let db; |
| |
| function upgradeCallback(db) { |
| deleteAllObjectStores(db); |
| db.createObjectStore(storeName, { keyPath: "id", autoIncrement: true }); |
| } |
| |
| async function writeAndReadData() { |
| db = await promiseOpenDb(databaseName, upgradeCallback); |
| const transaction = db.transaction(storeName, 'readwrite'); |
| transaction.onabort = unexpectedAbortCallback; |
| transaction.onerror = unexpectedErrorCallback; |
| transaction.oncomplete = readData().then((result) => { |
| if (result !== id) { |
| fail(`expected result to be '${id}', got '${result}'`); |
| return; |
| } |
| done(); |
| }).catch(unexpectedErrorCallback); |
| const objectStore = transaction.objectStore(storeName); |
| const request = objectStore.put({ id: id, data: data }); |
| request.onerror = unexpectedErrorCallback; |
| } |
| |
| function readData() { |
| return new Promise((resolve, reject) => { |
| const transaction = db.transaction(storeName, 'readonly'); |
| transaction.onerror = () => reject(transaction.error); |
| const objectStore = transaction.objectStore(storeName); |
| const request = objectStore.get(id); |
| request.onerror = () => reject(request.error); |
| request.onsuccess = () => resolve(request.result.id); |
| }); |
| } |
| |
| </script> |
| </head> |
| <body onLoad="writeAndReadData()"> |
| <div id="status">Starting...</div> |
| </body> |
| </html> |
