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ca82f72b31
* replace `process.on('exit', ...)` checks with `common.mustCall()`
* assert.equal() -> assert.strictEqual()
* provide duration of 1ms to timer without a duration
* remove unused function argument
PR-URL: https://github.com/nodejs/node/pull/10483
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const Readable = require('_stream_readable');
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const Writable = require('_stream_writable');
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const util = require('util');
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util.inherits(TestReadable, Readable);
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function TestReadable(opt) {
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if (!(this instanceof TestReadable))
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return new TestReadable(opt);
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Readable.call(this, opt);
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this._ended = false;
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}
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TestReadable.prototype._read = function() {
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if (this._ended)
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this.emit('error', new Error('_read called twice'));
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this._ended = true;
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this.push(null);
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};
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util.inherits(TestWritable, Writable);
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function TestWritable(opt) {
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if (!(this instanceof TestWritable))
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return new TestWritable(opt);
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Writable.call(this, opt);
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this._written = [];
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}
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TestWritable.prototype._write = function(chunk, encoding, cb) {
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this._written.push(chunk);
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cb();
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};
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// this one should not emit 'end' until we read() from it later.
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const ender = new TestReadable();
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// what happens when you pipe() a Readable that's already ended?
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const piper = new TestReadable();
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// pushes EOF null, and length=0, so this will trigger 'end'
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piper.read();
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setTimeout(common.mustCall(function() {
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ender.on('end', common.mustCall(function() {}));
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const c = ender.read();
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assert.strictEqual(c, null);
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const w = new TestWritable();
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w.on('finish', common.mustCall(function() {}));
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piper.pipe(w);
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}), 1);
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