[write.sharedworker.html]
  [WritableStream should complete asynchronous writes before close resolves]
    expected: FAIL

  [WritableStream should complete synchronous writes before close resolves]
    expected: FAIL

  [fulfillment value of ws.write() call should be undefined even if the underlying sink returns a non-undefined value]
    expected: FAIL

  [WritableStream should transition to waiting until write is acknowledged]
    expected: FAIL

  [when write returns a rejected promise, queued writes and close should be cleared]
    expected: FAIL

  [when sink's write throws an error, the stream should become errored and the promise should reject]
    expected: FAIL

  [writer.write(), ready and closed reject with the error passed to controller.error() made before sink.write rejection]
    expected: FAIL

  [a large queue of writes should be processed completely]
    expected: FAIL

  [WritableStreamDefaultWriter should work when manually constructed]
    expected: FAIL

  [returning a thenable from write() should work]
    expected: FAIL