Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core_question;

use question_attempt_step;

use testable_question_attempt;

defined('MOODLE_INTERNAL') || die();

global $CFG;

require_once(__DIR__ . '/../lib.php');

require_once(__DIR__ . '/helpers.php');

/**

 * Unit tests for the {@link question_attempt_step_iterator} class.

 *

 * @package    core_question

 * @category   test

 * @copyright  2009 The Open University

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

final class questionattemptstepiterator_test extends \advanced_testcase {

    private $qa;

    private $iterator;

    protected function setUp(): void {

        parent::setUp();

        $question = \test_question_maker::make_question('description');

        $this->qa = new testable_question_attempt($question, 0);

        for ($i = 0; $i < 3; $i++) {

            $step = new question_attempt_step(array('i' => $i));

            $this->qa->add_step($step);

        }

        $this->iterator = $this->qa->get_step_iterator();

    }

    protected function tearDown(): void {

        $this->qa = null;

        $this->iterator = null;

        parent::tearDown();

    }

    public function test_foreach_loop(): void {

        $i = 0;

        foreach ($this->iterator as $key => $step) {

            $this->assertEquals($i, $key);

            $this->assertEquals($i, $step->get_qt_var('i'));

            $i++;

        }

    }

    public function test_foreach_loop_add_step_during(): void {

        $i = 0;

        foreach ($this->iterator as $key => $step) {

            $this->assertEquals($i, $key);

            $this->assertEquals($i, $step->get_qt_var('i'));

            $i++;

            if ($i == 2) {

                $step = new question_attempt_step(array('i' => 3));

                $this->qa->add_step($step);

            }

        }

        $this->assertEquals(4, $i);

    }

    public function test_reverse_foreach_loop(): void {

        $i = 2;

        foreach ($this->qa->get_reverse_step_iterator() as $key => $step) {

            $this->assertEquals($i, $key);

            $this->assertEquals($i, $step->get_qt_var('i'));

            $i--;

        }

    }

    public function test_offsetExists_before_start(): void {

        $this->assertFalse(isset($this->iterator[-1]));

    }

    public function test_offsetExists_at_start(): void {

        $this->assertTrue(isset($this->iterator[0]));

    }

    public function test_offsetExists_at_endt(): void {

        $this->assertTrue(isset($this->iterator[2]));

    }

    public function test_offsetExists_past_end(): void {

        $this->assertFalse(isset($this->iterator[3]));

    }

    public function test_offsetGet_before_start(): void {

        $this->expectException(\moodle_exception::class);

        $step = $this->iterator[-1];

    }

    public function test_offsetGet_at_start(): void {

        $step = $this->iterator[0];

        $this->assertEquals(0, $step->get_qt_var('i'));

    }

    public function test_offsetGet_at_end(): void {

        $step = $this->iterator[2];

        $this->assertEquals(2, $step->get_qt_var('i'));

    }

    public function test_offsetGet_past_end(): void {

        $this->expectException(\moodle_exception::class);

        $step = $this->iterator[3];

    }

    public function test_cannot_set(): void {

        $this->expectException(\moodle_exception::class);

        $this->iterator[0] = null;

    }

    public function test_cannot_unset(): void {

        $this->expectException(\moodle_exception::class);

        unset($this->iterator[2]);

    }

}