readable-writable-properties.any.js

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// META: global=window,worker,shadowrealm

// This just tests that the "readable" and "writable" properties pass the brand

// checks. All other relevant attributes are covered by the IDL tests.

'use strict';

test(() => {

  const te = new TextEncoderStream();

  assert_equals(typeof ReadableStream.prototype.getReader.call(te.readable),

                'object', 'readable property must pass brand check');

  assert_equals(typeof WritableStream.prototype.getWriter.call(te.writable),

                'object', 'writable property must pass brand check');

}, 'TextEncoderStream readable and writable properties must pass brand checks');

test(() => {

  const td = new TextDecoderStream();

  assert_equals(typeof ReadableStream.prototype.getReader.call(td.readable),

                'object', 'readable property must pass brand check');

  assert_equals(typeof WritableStream.prototype.getWriter.call(td.writable),

                'object', 'writable property must pass brand check');

}, 'TextDecoderStream readable and writable properties must pass brand checks');