Laca-City/backend/node_modules/@ljharb/through/test/async.js

'use strict';

var from = require('from');
var through = require('../');

var tape = require('tape');

tape('simple async example', function (t) {
	var expected = [1, 2, 3, 4, 5];
	var actual = [];
	from(expected)
		.pipe(through(function (data) {
			this.pause();

			setTimeout(function () {
				console.log('pushing data', data);
				this.push(data);
				this.resume();
			}.bind(this), 300);
		})).pipe(through(function (data) {
			console.log('pushing data second time', data);
			this.push(data);
		})).on('data', function (d) {
			actual.push(d);
		}).on('end', function () {
			t.deepEqual(actual, expected);
			t.end();
		});
});