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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <meta charset=utf-8> |
| 3 <title>StorageManager: estimate()</title> |
| 4 <meta name="help" href="https://storage.spec.whatwg.org/#dom-storagemanager-esti
mate"> |
| 5 <script src="/resources/testharness.js"></script> |
| 6 <script src="/resources/testharnessreport.js"></script> |
| 7 <script> |
| 8 |
| 9 test(function(t) { |
| 10 assert_true(navigator.storage.estimate() instanceof Promise); |
| 11 }, 'estimate() method returns a Promise'); |
| 12 |
| 13 promise_test(function(t) { |
| 14 return navigator.storage.estimate().then(function(result) { |
| 15 assert_true(typeof result === 'object'); |
| 16 assert_true('usage' in result); |
| 17 assert_equals(typeof result.usage, 'number'); |
| 18 assert_true('quota' in result); |
| 19 assert_equals(typeof result.quota, 'number'); |
| 20 }); |
| 21 }, 'estimate() resolves to dictionary with members'); |
| 22 |
| 23 promise_test(function(t) { |
| 24 const large_value = new Uint8Array(1e6); |
| 25 const dbname = `db-${location}-${t.name}`; |
| 26 let db, before, after; |
| 27 |
| 28 indexedDB.deleteDatabase(dbname); |
| 29 return new Promise((resolve, reject) => { |
| 30 const open = indexedDB.open(dbname); |
| 31 open.onerror = () => { reject(open.error); }; |
| 32 open.onupgradeneeded = () => { |
| 33 const connection = open.result; |
| 34 connection.createObjectStore('store'); |
| 35 }; |
| 36 open.onsuccess = () => { |
| 37 const connection = open.result; |
| 38 t.add_cleanup(() => { |
| 39 connection.close(); |
| 40 indexedDB.deleteDatabase(dbname); |
| 41 }); |
| 42 resolve(connection); |
| 43 }; |
| 44 }) |
| 45 .then(connection => { |
| 46 db = connection; |
| 47 return navigator.storage.estimate(); |
| 48 }) |
| 49 .then(estimate => { |
| 50 before = estimate.usage; |
| 51 return new Promise((resolve, reject) => { |
| 52 const tx = db.transaction('store', 'readwrite'); |
| 53 tx.objectStore('store').put(large_value, 'key'); |
| 54 tx.onabort = () => { reject(tx.error); }; |
| 55 tx.oncomplete = () => { resolve(); }; |
| 56 }); |
| 57 }) |
| 58 .then(() => { |
| 59 return navigator.storage.estimate(); |
| 60 }) |
| 61 .then(estimate => { |
| 62 after = estimate.usage; |
| 63 assert_greater_than(after, before, |
| 64 'estimated usage should increase'); |
| 65 }); |
| 66 }, 'estimate() shows usage increase after 1MB IndexedDB record is stored'); |
| 67 |
| 68 </script> |
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Chromium Code Reviews
Issue 2791963004:
Upstream StorageManager estimate() test to WPT (Closed)
