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// Flags: --expose-internals --no-warnings
'use strict';
const common = require('../common');
const assert = require('assert');
const {
internalBinding,
} = require('internal/test/binding');
const {
newWritableStreamFromStreamBase,
newReadableStreamFromStreamBase,
} = require('internal/webstreams/adapters');
const {
JSStream
} = internalBinding('js_stream');
{
const stream = new JSStream();
stream.onwrite = common.mustCall((req, buf) => {
assert.deepStrictEqual(buf[0], Buffer.from('hello'));
req.oncomplete();
});
const writable = newWritableStreamFromStreamBase(stream);
const writer = writable.getWriter();
writer.write(Buffer.from('hello')).then(common.mustCall());
}
{
const buf = Buffer.from('hello');
const check = new Uint8Array(buf);
const stream = new JSStream();
const readable = newReadableStreamFromStreamBase(stream);
const reader = readable.getReader();
reader.read().then(common.mustCall(({ done, value }) => {
assert(!done);
assert.deepStrictEqual(new Uint8Array(value), check);
reader.read().then(common.mustCall(({ done, value }) => {
assert(done);
assert.strictEqual(value, undefined);
}));
}));
stream.readBuffer(buf);
stream.emitEOF();
}
{
const stream = new JSStream();
stream.onshutdown = common.mustCall((req) => {
req.oncomplete();
});
const readable = newReadableStreamFromStreamBase(stream);
readable.cancel().then(common.mustCall());
}
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