| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>StorageManager: persist()</title> |
| <meta name="help" href="https://storage.spec.whatwg.org/#dom-storagemanager-persist"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| |
| promise_test(function() { |
| var promise = navigator.storage.persist(); |
| assert_true(promise instanceof Promise, |
| 'navigator.storage.persist() returned a Promise.'); |
| return promise.then(function(result) { |
| assert_equals(typeof result, 'boolean', result + ' should be boolean'); |
| }); |
| }, 'navigator.storage.persist() returns a promise that resolves.'); |
| |
| </script> |
