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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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/>.

< /** < * Test gd functionality. < * < * @package core < * @category phpunit < * @copyright 2015 Andrew Nicols <andrew@nicols.co.uk> < * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later < */ < < defined('MOODLE_INTERNAL') || die(); <
> namespace core;
/** * A set of tests for some of the gd functionality within Moodle. * * @package core
< * @category phpunit
> * @category test
* @copyright 2015 Andrew Nicols <andrew@nicols.co.uk> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */
< class core_gdlib_testcase extends basic_testcase {
> class gdlib_test extends \basic_testcase {
private $fixturepath = null;
< public function setUp() {
> public function setUp(): void {
$this->fixturepath = __DIR__ . DIRECTORY_SEPARATOR . 'fixtures' . DIRECTORY_SEPARATOR; } public function test_generate_image_thumbnail() { global $CFG; require_once($CFG->libdir . '/gdlib.php'); // Test with meaningless data. // Now use a fixture. $pngpath = $this->fixturepath . 'gd-logo.png'; $pngthumb = generate_image_thumbnail($pngpath, 24, 24); $this->assertTrue(is_string($pngthumb)); // And check that the generated image was of the correct proportions and mimetype. $imageinfo = getimagesizefromstring($pngthumb); $this->assertEquals(24, $imageinfo[0]); $this->assertEquals(24, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); } public function test_generate_image_thumbnail_from_string() { global $CFG; require_once($CFG->libdir . '/gdlib.php'); // Test with meaningless data. // First empty values. $this->assertFalse(generate_image_thumbnail_from_string('', 24, 24)); $this->assertFalse(generate_image_thumbnail_from_string('invalid', 0, 24)); $this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 0)); // Now an invalid string. $this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 24)); // Now use a fixture. $pngpath = $this->fixturepath . 'gd-logo.png'; $pngdata = file_get_contents($pngpath); $pngthumb = generate_image_thumbnail_from_string($pngdata, 24, 24); $this->assertTrue(is_string($pngthumb)); // And check that the generated image was of the correct proportions and mimetype. $imageinfo = getimagesizefromstring($pngthumb); $this->assertEquals(24, $imageinfo[0]); $this->assertEquals(24, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); } public function test_resize_image() { global $CFG; require_once($CFG->libdir . '/gdlib.php'); $pngpath = $this->fixturepath . 'gd-logo.png'; // Preferred height. $newpng = resize_image($pngpath, null, 24); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(89, $imageinfo[0]); $this->assertEquals(24, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); // Preferred width. $newpng = resize_image($pngpath, 100, null); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(100, $imageinfo[0]); $this->assertEquals(26, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); // Preferred width and height. $newpng = resize_image($pngpath, 50, 50); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(50, $imageinfo[0]); $this->assertEquals(13, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); } public function test_resize_image_from_image() { global $CFG; require_once($CFG->libdir . '/gdlib.php'); $pngpath = $this->fixturepath . 'gd-logo.png'; $origimageinfo = getimagesize($pngpath); $imagecontent = file_get_contents($pngpath); // Preferred height. $imageresource = imagecreatefromstring($imagecontent); $newpng = resize_image_from_image($imageresource, $origimageinfo, null, 24); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(89, $imageinfo[0]); $this->assertEquals(24, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); // Preferred width. $imageresource = imagecreatefromstring($imagecontent); $newpng = resize_image_from_image($imageresource, $origimageinfo, 100, null); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(100, $imageinfo[0]); $this->assertEquals(26, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); // Preferred width and height. $imageresource = imagecreatefromstring($imagecontent); $newpng = resize_image_from_image($imageresource, $origimageinfo, 50, 50); $this->assertTrue(is_string($newpng)); $imageinfo = getimagesizefromstring($newpng); $this->assertEquals(50, $imageinfo[0]); $this->assertEquals(13, $imageinfo[1]); $this->assertEquals('image/png', $imageinfo['mime']); } }