MDL-38267: Unit test

<?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,
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
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/**
 * Unit tests for (some of) mod/assign/locallib.php.
 *
 * @package    mod_assign
 * @category   phpunit
 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */


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

global $CFG;
require_once($CFG->dirroot . '/mod/assign/locallib.php');
require_once($CFG->dirroot . '/mod/assign/upgradelib.php');
require_once($CFG->dirroot . '/mod/assign/tests/base_test.php');

/**
 * Unit tests for (some of) mod/assign/locallib.php.
 *
 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class mod_assign_locallib_testcase extends mod_assign_base_testcase {
	
	public function test_disable_submit_after_cutoff_date() {
        global $PAGE;

        $this->setUser($this->editingteachers[0]);
        $now = time();
        $tomorrow = $now + 24*60*60;
        $lastweek = $now - 7*24*60*60;
        $yesterday = $now - 24*60*60;
	
	$assign = $this->create_instance(array('duedate'=>$yesterday,
                                               'cutoffdate'=>$tomorrow,
                                               'assignsubmission_onlinetext_enabled'=>1));
        $PAGE->set_url(new moodle_url('/mod/assign/view.php', array('id' => $assign->get_course_module()->id)));

        // Student should be able to see an add submission button.
        $this->setUser($this->students[0]);
        $output = $assign->view_student_summary($this->students[0], true);
        $this->assertNotEquals(false, strpos($output, get_string('addsubmission', 'assign')));
        
        // Add a submission but don't submit now.
        $submission = $assign->get_user_submission($this->students[0]->id, true);
        $data = new stdClass();
        $data->onlinetext_editor = array('itemid'=>file_get_unused_draft_itemid(),
                                         'text'=>'Submission text',
                                         'format'=>FORMAT_MOODLE);
        $plugin = $assign->get_submission_plugin_by_type('onlinetext');
        $plugin->save($submission, $data);
        
        
        //create another instance with cut-off and due-date already passed
	$this->setUser($this->editingteachers[0]);
        $now = time();
        
        $assign = $this->create_instance(array('duedate'=>$lastweek,
                                               'cutoffdate'=>$yesterday,
                                               'assignsubmission_onlinetext_enabled'=>1));

        $this->setUser($this->students[0]);
        $output = $assign->view_student_summary($this->students[0], true);
        $this->assertEquals(false, strpos($output, get_string('editsubmission', 'assign')));//success
	$this->assertEquals(false, strpos($output, get_string('submitassignment', 'assign')));//success
	
    }
}