<?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/>.

/**
 * Unit tests for lib.php
 *
 * @package    mod_data
 * @category   phpunit
 * @copyright  2013 Adrian Greeve
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

global $CFG;
require_once($CFG->dirroot . '/mod/data/lib.php');

/**
 * Unit tests for lib.php
 *
 * @package    mod_data
 * @copyright  2013 Adrian Greeve
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class data_lib_testcase extends advanced_testcase {

    function test_data_delete_record() {
        global $DB;

        $this->resetAfterTest();

        // Create a record for deleting.
        $this->setAdminUser();
        $course = $this->getDataGenerator()->create_course();
        $record = new stdClass();
        $record->course = $course->id;
        $record->name = "Mod data delete test";
        $record->intro = "Some intro of some sort";

        $module = $this->getDataGenerator()->create_module('data', $record);

        $field = data_get_field_new('text', $module);

        $fielddetail = new stdClass();
        $fielddetail->d = $module->id;
        $fielddetail->mode = 'add';
        $fielddetail->type = 'text';
        $fielddetail->sesskey = sesskey();
        $fielddetail->name = 'Name';
        $fielddetail->description = 'Some name';

        $field->define_field($fielddetail);
        $field->insert_field();
        $recordid = data_add_record($module);

        $datacontent = array();
        $datacontent['fieldid'] = $field->field->id;
        $datacontent['recordid'] = $recordid;
        $datacontent['content'] = 'Asterix';

        $contentid = $DB->insert_record('data_content', $datacontent);
        $cm = get_coursemodule_from_instance('data', $module->id, $course->id);

        // Check to make sure that we have a database record.
        $data = $DB->get_records('data', array('id' => $module->id));
        $this->assertEquals(1, count($data));

        $datacontent = $DB->get_records('data_content', array('id' => $contentid));
        $this->assertEquals(1, count($datacontent));

        $datafields = $DB->get_records('data_fields', array('id' => $field->field->id));
        $this->assertEquals(1, count($datafields));

        $datarecords = $DB->get_records('data_records', array('id' => $recordid));
        $this->assertEquals(1, count($datarecords));

        // Test to see if a failed delete returns false.
        $result = data_delete_record(8798, $module, $course->id, $cm->id);
        $this->assertFalse($result);

        // Delete the record.
        $result = data_delete_record($recordid, $module, $course->id, $cm->id);

        // Check that all of the record is gone.
        $datacontent = $DB->get_records('data_content', array('id' => $contentid));
        $this->assertEquals(0, count($datacontent));

        $datarecords = $DB->get_records('data_records', array('id' => $recordid));
        $this->assertEquals(0, count($datarecords));

        // Make sure the function returns true on a successful deletion.
        $this->assertTrue($result);
    }
}