
FAIL controller argument should be passed to start method controller.error is not a function. (In 'controller.error(error1)', 'controller.error' is undefined)
FAIL controller argument should be passed to write method ws.getWriter is not a function. (In 'ws.getWriter()', 'ws.getWriter' is undefined)
FAIL controller argument should not be passed to close method ws.getWriter is not a function. (In 'ws.getWriter()', 'ws.getWriter' is undefined)
FAIL highWaterMark should be reflected to desiredSize ws.getWriter is not a function. (In 'ws.getWriter()', 'ws.getWriter' is undefined)
FAIL WritableStream should be writable and ready should fulfill immediately if the strategy does not apply backpressure ws.getWriter is not a function. (In 'ws.getWriter()', 'ws.getWriter' is undefined)
PASS WritableStream should be constructible with no arguments 
PASS underlyingSink argument should be converted after queuingStrategy argument 
FAIL WritableStream instances should have standard methods and properties ws.getWriter is not a function. (In 'ws.getWriter()', 'ws.getWriter' is undefined)
FAIL WritableStreamDefaultController constructor should throw assert_throws_js: constructor should throw a TypeError exception function "() => new WritableStreamDefaultController({})" threw object "SyntaxError: Unexpected identifier 'Object'. Expected either a closing ']' or a ',' following an array element." ("SyntaxError") expected instance of function "function TypeError() {
    [native code]
}" ("TypeError")
FAIL WritableStreamDefaultController constructor should throw when passed an initialised WritableStream assert_throws_js: constructor should throw a TypeError exception function "() => new WritableStreamDefaultController(stream)" threw object "SyntaxError: Unexpected identifier 'WritableStream'. Expected either a closing ']' or a ',' following an array element." ("SyntaxError") expected instance of function "function TypeError() {
    [native code]
}" ("TypeError")
FAIL WritableStreamDefaultWriter should throw unless passed a WritableStream stream.getWriter is not a function. (In 'stream.getWriter()', 'stream.getWriter' is undefined)
FAIL WritableStreamDefaultWriter constructor should throw when stream argument is locked stream.getWriter is not a function. (In 'stream.getWriter()', 'stream.getWriter' is undefined)