
FAIL start: errors in start cause WritableStream constructor to throw assert_throws_exactly: constructor should throw same error as throwing start getter function "() => {
    new WritableStream({
      get start() {
        throw error1;
      }
    });
  }" threw object "ReferenceError: Can't find variable: WritableStream" but we expected it to throw object "error1: error1"
FAIL close: throwing method should cause writer close() and ready to reject Can't find variable: WritableStream
FAIL close: returning a rejected promise should cause writer close() and ready to reject Can't find variable: WritableStream
FAIL close: throwing getter should cause constructor to throw assert_throws_exactly: constructor should throw function "() => new WritableStream({
    get close() {
      throw error1;
    }
  })" threw object "ReferenceError: Can't find variable: WritableStream" but we expected it to throw object "error1: error1"
FAIL write: throwing getter should cause write() and closed to reject assert_throws_exactly: constructor should throw function "() => new WritableStream({
    get write() {
      throw error1;
    }
  })" threw object "ReferenceError: Can't find variable: WritableStream" but we expected it to throw object "error1: error1"
FAIL write: throwing method should cause write() and closed to reject Can't find variable: WritableStream
FAIL write: returning a promise that becomes rejected after the writer write() should cause writer write() and ready to reject Can't find variable: WritableStream
FAIL write: returning a rejected promise (second write) should cause writer write() and ready to reject Can't find variable: WritableStream
FAIL abort: non-function abort method with .apply assert_throws_js: constructor should throw function "() => new WritableStream({
    abort: { apply() {} }
  })" threw object "ReferenceError: Can't find variable: WritableStream" ("ReferenceError") expected instance of function "function TypeError() {
    [native code]
}" ("TypeError")
FAIL abort: throwing getter should cause abort() and closed to reject assert_throws_exactly: constructor should throw function "() => new WritableStream({
    get abort() {
      throw error1;
    }
  })" threw object "ReferenceError: Can't find variable: WritableStream" but we expected it to throw object "error1: error1"
FAIL abort: throwing method should cause abort() and closed to reject Can't find variable: WritableStream