
PASS Service worker test setup 
PASS Can get the ReadableStreamDefaultReader constructor indirectly 
PASS Can get the ReadableStreamDefaultController constructor indirectly 
PASS ReadableStream.prototype.cancel enforces a brand check 
PASS ReadableStream.prototype.getReader enforces a brand check 
PASS ReadableStream.prototype.tee enforces a brand check 
PASS ReadableStreamDefaultReader enforces a brand check on its argument 
PASS ReadableStreamDefaultReader.prototype.closed enforces a brand check 
PASS ReadableStreamDefaultReader.prototype.cancel enforces a brand check 
PASS ReadableStreamDefaultReader.prototype.read enforces a brand check 
PASS ReadableStreamDefaultReader.prototype.releaseLock enforces a brand check 
PASS ReadableStreamDefaultController enforces a brand check on its argument 
PASS ReadableStreamDefaultController can't be given a fully-constructed ReadableStream 
PASS ReadableStreamDefaultController.prototype.close enforces a brand check 
PASS ReadableStreamDefaultController.prototype.enqueue enforces a brand check 
PASS ReadableStreamDefaultController.prototype.error enforces a brand check