48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
// META: title=StorageManager: estimate() for indexeddb
|
|
// META: script=/storage/buckets/resources/util.js
|
|
|
|
// Technically, this verifies unspecced behavior. See
|
|
// https://github.com/whatwg/storage/issues/110 for defining this behavior.
|
|
promise_test(async t => {
|
|
const arraySize = 1e6;
|
|
const objectStoreName = "storageManager";
|
|
const dbname =
|
|
this.window ? window.location.pathname : 'estimate-worker.https.html';
|
|
|
|
await indexedDbDeleteRequest(indexedDB, dbname);
|
|
let estimate = await navigator.storage.estimate();
|
|
|
|
const usageBeforeCreate = estimate.usage;
|
|
const db =
|
|
await indexedDbOpenRequest(t, indexedDB, dbname, (db_to_upgrade) => {
|
|
db_to_upgrade.createObjectStore(objectStoreName);
|
|
});
|
|
|
|
estimate = await navigator.storage.estimate();
|
|
const usageAfterCreate = estimate.usage;
|
|
|
|
assert_greater_than(
|
|
usageAfterCreate, usageBeforeCreate,
|
|
'estimated usage should increase after object store is created');
|
|
|
|
const txn = db.transaction(objectStoreName, 'readwrite');
|
|
const buffer = new ArrayBuffer(arraySize);
|
|
const view = new Uint8Array(buffer);
|
|
|
|
for (let i = 0; i < arraySize; i++) {
|
|
view[i] = Math.floor(Math.random() * 255);
|
|
}
|
|
|
|
const testBlob = new Blob([buffer], {type: 'binary/random'});
|
|
txn.objectStore(objectStoreName).add(testBlob, 1);
|
|
|
|
await transactionPromise(txn);
|
|
|
|
estimate = await navigator.storage.estimate();
|
|
const usageAfterPut = estimate.usage;
|
|
assert_greater_than(
|
|
usageAfterPut, usageAfterCreate,
|
|
'estimated usage should increase after large value is stored');
|
|
|
|
db.close();
|
|
}, 'estimate() shows usage increase after large value is stored');
|