Revision 13597c4af7ac923309e740920cd42bed88113e5f authored by Mike Taylor on 30 March 2018, 21:08:48 UTC, committed by Anne van Kesteren on 09 April 2018, 10:46:34 UTC
See https://github.com/whatwg/dom/issues/625 for details.
1 parent 95992cd
storage-estimate-indexeddb.js
if (this.document === undefined) {
importScripts("/resources/testharness.js");
}
test(function(t) {
assert_true('estimate' in navigator.storage);
assert_equals(typeof navigator.storage.estimate, 'function');
assert_true(navigator.storage.estimate() instanceof Promise);
}, 'estimate() method exists and returns a Promise');
promise_test(function(t) {
return navigator.storage.estimate().then(function(result) {
assert_true(typeof result === 'object');
assert_true('usage' in result);
assert_equals(typeof result.usage, 'number');
assert_true('quota' in result);
assert_equals(typeof result.quota, 'number');
});
}, 'estimate() resolves to dictionary with members');
promise_test(function(t) {
const arraySize = 1e6;
const objectStoreName = "storageManager";
const dbname = this.window ? window.location.pathname :
"estimate-worker.https.html";
let db;
let usageBeforeCreate, usageAfterCreate, usageAfterPut;
function deleteDB(name) {
return new Promise(function(resolve, reject) {
let deleteRequest = indexedDB.deleteDatabase(name);
deleteRequest.onerror = function() { reject(deleteRequest.error); };
deleteRequest.onsuccess = function() { resolve(); };
});
}
return deleteDB(dbname)
.then(() => {
return navigator.storage.estimate();
})
.then(estimate => {
usageBeforeCreate = estimate.usage;
return new Promise(function(resolve, reject) {
let openRequest = indexedDB.open(dbname);
openRequest.onerror = function() { reject(openRequest.error); };
openRequest.onupgradeneeded = function(event) {
openRequest.result.createObjectStore(objectStoreName);
};
openRequest.onsuccess = function() { resolve(openRequest.result); };
});
})
.then(connection => {
db = connection;
return navigator.storage.estimate();
})
.then(estimate => {
usageAfterCreate = estimate.usage;
assert_greater_than(usageAfterCreate, usageBeforeCreate,
'estimated usage should increase after object store is created');
let txn = db.transaction(objectStoreName, 'readwrite');
let buffer = new ArrayBuffer(arraySize);
let view = new Uint8Array(buffer);
for (let i = 0; i < arraySize; i++) {
view[i] = parseInt(Math.random() * 255);
}
let testBlob = new Blob([buffer], {type: "binary/random"});
txn.objectStore(objectStoreName).add(testBlob, 1);
return new Promise(function(resolve, reject) {
txn.onabort = function() { reject(txn.error); };
txn.oncomplete = function() { resolve(); };
});
})
.then(() => {
return navigator.storage.estimate();
})
.then(estimate => {
usageAfterPut = estimate.usage;
assert_greater_than(usageAfterPut, usageAfterCreate,
'estimated usage should increase after large value is stored');
db.close();
return deleteDB(dbname)
})
.then(() => {
t.done();
})
}, 'estimate() shows usage increase after large value is stored');
done();
![swh spinner](/static/img/swh-spinner.gif)
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