nodejs-mozilla/test/parallel/test-stream-duplex-writable...

31 lines
680 B
JavaScript

'use strict';
const common = require('../common');
const { Duplex } = require('stream');
const assert = require('assert');
// basic
{
// Find it on Duplex.prototype
assert(Duplex.prototype.hasOwnProperty('writableFinished'));
}
// event
{
const duplex = new Duplex();
duplex._write = (chunk, encoding, cb) => {
// The state finished should start in false.
assert.strictEqual(duplex.writableFinished, false);
cb();
};
duplex.on('finish', common.mustCall(() => {
assert.strictEqual(duplex.writableFinished, true);
}));
duplex.end('testing finished state', common.mustCall(() => {
assert.strictEqual(duplex.writableFinished, true);
}));
}