Import wpt@cd5cce9780f84cee679919679b8199084ea96d54

third_party/WebKit/LayoutTests/external/wpt/streams/readable-byte-streams/general.js

 'use strict';
 
 if (self.importScripts) {
   self.importScripts('../resources/rs-utils.js');
   self.importScripts('/resources/testharness.js');
 }
 
 const error1 = new Error('error1');
 error1.name = 'error1';
 
@@ skipping 262 matching lines @@
       ++pullCount;
     },
     type: 'bytes',
     autoAllocateChunkSize: 16
   }, {
     highWaterMark: 0
   });
 
   const reader = stream.getReader();
   const readPromise = reader.read();
+  const ignoredReadPromise = reader.read();
 
   assert_equals(pullCount, 0, 'No pull() as start() just finished and is not yet reflected to the state of the stream');
 
   return Promise.resolve().then(() => {
     assert_equals(pullCount, 1, 'pull() must have been invoked once');
     return readPromise;
   }).then(result => {
     assert_not_equals(result.value, undefined);
     assert_equals(result.value.constructor, Uint8Array);
     assert_equals(result.value.buffer.byteLength, 16);
@@ skipping 1618 matching lines @@
   assert_throws(new TypeError(), () => new ReadableStreamBYOBReader(stream), 'constructor must throw');
 }, 'ReadableStreamBYOBReader constructor requires an unlocked ReadableStream');
 
 test(() => {
   const ReadableStreamBYOBReader = new ReadableStream({ type: 'bytes' }).getReader({ mode: 'byob' }).constructor;
   const stream = new ReadableStream();
   assert_throws(new TypeError(), () => new ReadableStreamBYOBReader(stream), 'constructor must throw');
 }, 'ReadableStreamBYOBReader constructor requires a ReadableStream with type "bytes"');
 
 done();