cakephp/tests/TestCase/Shell/Helper/ProgressHelperTest.php

<?php
/**
 * CakePHP :  Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP Project
 * @since         3.1.0
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */
namespace Cake\Test\TestCase\Shell\Helper;

use Cake\Console\ConsoleIo;
use Cake\Shell\Helper\ProgressHelper;
use Cake\TestSuite\Stub\ConsoleOutput;
use Cake\TestSuite\TestCase;

/**
 * ProgressHelper test.
 */
class ProgressHelperTest extends TestCase
{

    /**
     * setUp method
     *
     * @return void
     */
    public function setUp()
    {
        parent::setUp();

        $this->stub = new ConsoleOutput();
        $this->io = new ConsoleIo($this->stub);
        $this->helper = new ProgressHelper($this->io);
    }

    /**
     * Test that a callback is required.
     *
     * @expectedException \RuntimeException
     */
    public function testOutputFailure()
    {
        $this->helper->output(['not a callback']);
    }

    /**
     * Test a callback that never reaches 100 fails.
     *
     * @return void
     */
    public function testOutputSuccess()
    {
        $this->helper->output([function ($progress) {
            $progress->increment(20);
        }]);
        $expected = [
            '',
            '==============>                                                              20%',
            '',
            '=============================>                                               40%',
            '',
            '============================================>                                60%',
            '',
            '===========================================================>                 80%',
            '',
            '==========================================================================> 100%',
        ];
        $this->assertEquals($expected, $this->stub->messages());
    }

    /**
     * Test using the helper manually.
     *
     * @return void
     */
    public function testIncrementAndRender()
    {
        $this->helper->init();

        $this->helper->increment(20);
        $this->helper->draw();

        $this->helper->increment(40);
        $this->helper->draw();

        $this->helper->increment(40);
        $this->helper->draw();

        $expected = [
            '',
            '==============>                                                              20%',
            '',
            '============================================>                                60%',
            '',
            '==========================================================================> 100%',
        ];
        $this->assertEquals($expected, $this->stub->messages());
    }

    /**
     * Test negative numbers
     *
     * @return void
     */
    public function testIncrementWithNegatives()
    {
        $this->helper->init();

        $this->helper->increment(40);
        $this->helper->draw();

        $this->helper->increment(-60);
        $this->helper->draw();

        $this->helper->increment(80);
        $this->helper->draw();

        $expected = [
            '',
            '=============================>                                               40%',
            '',
            '                                                                              0%',
            '',
            '===========================================================>                 80%',
        ];
        $this->assertEquals($expected, $this->stub->messages());
    }
}