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

31 lines
702 B
JavaScript

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