storagemanager-persist.https.window.js (611B)
1 // META: title=StorageManager: persist() 2 // META: script=/resources/testdriver.js 3 // META: script=/resources/testdriver-vendor.js 4 // META: script=resources/helpers.js 5 6 promise_setup(async () => { 7 await tryDenyingPermission(); 8 }); 9 10 promise_test(function() { 11 var promise = navigator.storage.persist(); 12 assert_true(promise instanceof Promise, 13 'navigator.storage.persist() returned a Promise.'); 14 return promise.then(function(result) { 15 assert_equals(typeof result, 'boolean', result + ' should be boolean'); 16 }); 17 }, 'navigator.storage.persist() returns a promise that resolves.');