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 availability_grade;

/**

 * Unit tests for the grade condition.

 *

 * @package availability_grade

 * @copyright 2014 The Open University

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

 */

class condition_test extends \advanced_testcase {

    /**

     * Tests constructing and using grade condition.

     */

    public function test_usage() {

        global $USER, $CFG;

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

        $this->resetAfterTest();

        $CFG->enableavailability = true;

        // Make a test course and user.

        $course = $this->getDataGenerator()->create_course();

        $user = $this->getDataGenerator()->create_user();

        $this->getDataGenerator()->enrol_user($user->id, $course->id);

        // Make assign module.

        $assignrow = $this->getDataGenerator()->create_module('assign', array(

                'course' => $course->id, 'name' => 'Test!'));

        $assign = new \assign(\context_module::instance($assignrow->cmid), false, false);

        $modinfo = get_fast_modinfo($course);

        $cm = $modinfo->get_cm($assignrow->cmid);

        $info = new \core_availability\info_module($cm);

        // Get the actual grade item.

        $item = $assign->get_grade_item();

        // Construct tree with grade condition (any grade, specified item).

        $structure = (object)array('type' => 'grade', 'id' => (int)$item->id);

        $cond = new condition($structure);

        // Check if available (not available).

        $this->assertFalse($cond->is_available(false, $info, true, $user->id));

        $information = $cond->get_description(false, false, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~have a grade.*Test!~', $information);

        $this->assertTrue($cond->is_available(true, $info, true, $user->id));

        // Add grade and check available.

        self::set_grade($assignrow, $user->id, 37.2);

        $this->assertTrue($cond->is_available(false, $info, true, $user->id));

        $this->assertFalse($cond->is_available(true, $info, true, $user->id));

        $information = $cond->get_description(false, true, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~do not have a grade.*Test!~', $information);

        // Construct directly and test remaining conditions; first, min grade (fail).

        self::set_grade($assignrow, $user->id, 29.99999);

        $structure->min = 30.0;

        $cond = new condition($structure);

        $this->assertFalse($cond->is_available(false, $info, true, $user->id));

        $information = $cond->get_description(false, false, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~achieve higher than.*Test!~', $information);

        $this->assertTrue($cond->is_available(true, $info, true, $user->id));

        // Min grade (success).

        self::set_grade($assignrow, $user->id, 30);

        $this->assertTrue($cond->is_available(false, $info, true, $user->id));

        $this->assertFalse($cond->is_available(true, $info, true, $user->id));

        $information = $cond->get_description(false, true, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~do not get certain scores.*Test!~', $information);

        // Max grade (fail).

        unset($structure->min);

        $structure->max = 30.0;

        $cond = new condition($structure);

        $this->assertFalse($cond->is_available(false, $info, true, $user->id));

        $information = $cond->get_description(false, false, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~achieve lower than a certain score in.*Test!~', $information);

        $this->assertTrue($cond->is_available(true, $info, true, $user->id));

        // Max grade (success).

        self::set_grade($assignrow, $user->id, 29.99999);

        $this->assertTrue($cond->is_available(false, $info, true, $user->id));

        $this->assertFalse($cond->is_available(true, $info, true, $user->id));

        $information = $cond->get_description(false, true, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~do not get certain scores.*Test!~', $information);

        // Max and min (fail).

        $structure->min = 30.0;

        $structure->max = 34.12345;

        $cond = new condition($structure);

        $this->assertFalse($cond->is_available(false, $info, true, $user->id));

        $information = $cond->get_description(false, false, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~achieve a score within a certain range.*Test!~', $information);

        $this->assertTrue($cond->is_available(true, $info, true, $user->id));

        // Still fail (other end).

        self::set_grade($assignrow, $user->id, 34.12345);

        $this->assertFalse($cond->is_available(false, $info, true, $user->id));

        // Success (top end).

        self::set_grade($assignrow, $user->id, 34.12344);

        $this->assertTrue($cond->is_available(false, $info, true, $user->id));

        $this->assertFalse($cond->is_available(true, $info, true, $user->id));

        $information = $cond->get_description(false, true, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~do not get certain scores.*Test!~', $information);

        // Success (bottom end).

        self::set_grade($assignrow, $user->id, 30.0);

        $this->assertTrue($cond->is_available(false, $info, true, $user->id));

        $this->assertFalse($cond->is_available(true, $info, true, $user->id));

        $information = $cond->get_description(false, true, $info);

        $information = \core_availability\info::format_info($information, $course);

        $this->assertMatchesRegularExpression('~do not get certain scores.*Test!~', $information);

    }

    /**

     * Tests the constructor including error conditions. Also tests the

     * string conversion feature (intended for debugging only).

     */

    public function test_constructor() {

        // No parameters.

        $structure = new \stdClass();

        try {

            $cond = new condition($structure);

            $this->fail();

        } catch (\coding_exception $e) {

            $this->assertStringContainsString('Missing or invalid ->id', $e->getMessage());

        }

        // Invalid id (not int).

        $structure->id = 'bourne';

        try {

            $cond = new condition($structure);

            $this->fail();

        } catch (\coding_exception $e) {

            $this->assertStringContainsString('Missing or invalid ->id', $e->getMessage());

        }

        // Invalid min (not number).

        $structure->id = 42;

        $structure->min = 'ute';

        try {

            $cond = new condition($structure);

            $this->fail();

        } catch (\coding_exception $e) {

            $this->assertStringContainsString('Missing or invalid ->min', $e->getMessage());

        }

        // Invalid max (not number).

        $structure->min = 3.89;

        $structure->max = '9000';

        try {

            $cond = new condition($structure);

            $this->fail();

        } catch (\coding_exception $e) {

            $this->assertStringContainsString('Missing or invalid ->max', $e->getMessage());

        }

        // All valid.

        $structure->max = 4.0;

        $cond = new condition($structure);

        $this->assertEquals('{grade:#42 >= 3.89000, < 4.00000}', (string)$cond);

        // No max.

        unset($structure->max);

        $cond = new condition($structure);

        $this->assertEquals('{grade:#42 >= 3.89000}', (string)$cond);

        // No min.

        unset($structure->min);

        $structure->max = 32.768;

        $cond = new condition($structure);

        $this->assertEquals('{grade:#42 < 32.76800}', (string)$cond);

        // No nothing (only requires that grade exists).

        unset($structure->max);

        $cond = new condition($structure);

        $this->assertEquals('{grade:#42}', (string)$cond);

    }

    /**

     * Tests the save() function.

     */

    public function test_save() {

        $structure = (object)array('id' => 19);

        $cond = new condition($structure);

        $structure->type = 'grade';

        $this->assertEquals($structure, $cond->save());

        $structure = (object)array('id' => 19, 'min' => 4.12345, 'max' => 90);

        $cond = new condition($structure);

        $structure->type = 'grade';

        $this->assertEquals($structure, $cond->save());

    }

    /**

     * Updates the grade of a user in the given assign module instance.

     *

     * @param \stdClass $assignrow Assignment row from database

     * @param int $userid User id

     * @param float $grade Grade

     */

    protected static function set_grade($assignrow, $userid, $grade) {

        $grades = array();

        $grades[$userid] = (object)array(

                'rawgrade' => $grade, 'userid' => $userid);

        $assignrow->cmidnumber = null;

        assign_grade_item_update($assignrow, $grades);

    }

    /**

     * Tests the update_dependency_id() function.

     */

    public function test_update_dependency_id() {

        $cond = new condition((object)array('id' => 123));

        $this->assertFalse($cond->update_dependency_id('frogs', 123, 456));

        $this->assertFalse($cond->update_dependency_id('grade_items', 12, 34));

        $this->assertTrue($cond->update_dependency_id('grade_items', 123, 456));

        $after = $cond->save();

        $this->assertEquals(456, $after->id);

    }

}