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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-transform-constructor-set-methods.js
2023-06-02 15:05:32 +09:00

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JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
const assert = require('assert');
const { Transform } = require('stream');
const t = new Transform();
assert.throws(
() => {
t.end(Buffer.from('blerg'));
},
{
name: 'Error',
code: 'ERR_METHOD_NOT_IMPLEMENTED',
message: 'The _transform() method is not implemented'
}
);
const _transform = common.mustCall((chunk, _, next) => {
next();
});
const _final = common.mustCall((next) => {
next();
});
const _flush = common.mustCall((next) => {
next();
});
const t2 = new Transform({
transform: _transform,
flush: _flush,
final: _final
});
assert.strictEqual(t2._transform, _transform);
assert.strictEqual(t2._flush, _flush);
assert.strictEqual(t2._final, _final);
t2.end(Buffer.from('blerg'));
t2.resume();