C:/xampp/htdocs/moodle/mod/scorm/simpletest/test_formatduration.php

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<?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/>.

if (!defined('MOODLE_INTERNAL')) {
    die('Direct access to this script is forbidden.'); //  It must be included from a Moodle page
}

// Unit tests for scorm_formatduration function from locallib.php

// Make sure the code being tested is accessible.
require_once($CFG->dirroot . '/mod/scorm/locallib.php'); // Include the code to test

class scorm_formatduration_test extends UnitTestCase {
    function test_scorm2004_format() {
        $stryears = get_string('years');
        $strmonths = trim(get_string('nummonths'));
        $strdays = get_string('days');
        $strhours = get_string('hours');
        $strminutes = get_string('minutes');
        $strseconds = get_string('seconds');

        $SUTs = array(1=>'PT001H012M0043.12S', 2=>'PT15.3S', 3=>'P01Y02M5DT0H7M', 4=>'P0Y0M0DT0H1M00.00S',
                      5=>'P1YT15M00.01S', 6=>'P0Y0M0DT0H0M0.0S', 7=>'P1MT4M0.30S', 8=>'PT', 9=>'P1DT2H3S', 10=>'P4M');
        $validates = array(1=>"1 $strhours 12 $strminutes 43.12 $strseconds", 2=>"15.3 $strseconds", 3=>"1 $stryears 2 $strmonths 5 $strdays 7 $strminutes ",
                           4=>"1 $strminutes ", 5=>"1 $stryears 15 $strminutes 0.01 $strseconds", 6=>'', 7=>"1 $strmonths 4 $strminutes 0.30 $strseconds",
                           8=>'', 9=>"1 $strdays 2 $strhours 3 $strseconds", 10=>"4 $strmonths ");
        foreach ($SUTs as $key => $SUT) {
            $formatted = scorm_format_duration($SUT);
            $this->assertEqual($formatted, $validates[$key]);
        }
    }

    function test_scorm12_format() {
        $stryears = get_string('years');
        $strmonths =  trim(get_string('nummonths'));
        $strdays = get_string('days');
        $strhours = get_string('hours');
        $strminutes = get_string('minutes');
        $strseconds = get_string('seconds');

        $SUTs = array(1=>'00:00:00', 2=>'1:2:3', 3=>'12:34:56.78', 4=>'00:12:00.03', 5=>'01:00:23', 6=>'00:12:34.00',
                      7=>'00:01:02.03', 8=>'00:00:00.1', 9=>'1:23:00', 10=>'2:00:00');
        $validates = array(1=>'', 2=>"1 $strhours 2 $strminutes 3 $strseconds", 3=>"12 $strhours 34 $strminutes 56.78 $strseconds",
                           4=>"12 $strminutes 0.03 $strseconds", 5=>"1 $strhours 23 $strseconds", 6=>"12 $strminutes 34 $strseconds",
                           7=>"1 $strminutes 2.03 $strseconds", 8=>"0.1 $strseconds", 9=>"1 $strhours 23 $strminutes ", 10=>"2 $strhours ");
        foreach ($SUTs as $key => $SUT) {
            $formatted = scorm_format_duration($SUT);
            $this->assertEqual($formatted, $validates[$key]);
        }
    }

    function test_non_datetime() {
    }
}