| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| // These are regression tests for |
| // https://bugs.chromium.org/p/chromium/issues/detail?id=803008. Checking the |
| // message text of exceptions is not normally good practice but here it is the |
| // only way to verify that the bug is fixed. |
| |
| test(() => { |
| const ws = new WritableStream(); |
| ws.getWriter(); |
| let error; |
| try { |
| ws.getWriter(); |
| } catch (e) { |
| error = e; |
| } |
| assert_not_equals(error, undefined); |
| assert_equals( |
| error.message, |
| 'Failed to execute \'getWriter\' on \'WritableStream\': Cannot ' + |
| 'create writer when WritableStream is locked', |
| 'message should be relevant'); |
| }, 'getWriter on locked WritableStream should have an appropriate message'); |
| </script> |
