[Summary view] [Print] [Text view]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Test gd functionality.
  19   *
  20   * @package    core
  21   * @category   phpunit
  22   * @copyright  2015 Andrew Nicols <andrew@nicols.co.uk>
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  
  29  /**
  30   * A set of tests for some of the gd functionality within Moodle.
  31   *
  32   * @package    core
  33   * @category   phpunit
  34   * @copyright  2015 Andrew Nicols <andrew@nicols.co.uk>
  35   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36   */
  37  class core_gdlib_testcase extends basic_testcase {
  38  
  39      private $fixturepath = null;
  40  
  41      public function setUp() {
  42          $this->fixturepath = __DIR__ . DIRECTORY_SEPARATOR . 'fixtures' . DIRECTORY_SEPARATOR;
  43      }
  44  
  45      public function test_generate_image_thumbnail() {
  46          global $CFG;
  47          require_once($CFG->libdir . '/gdlib.php');
  48  
  49          // Test with meaningless data.
  50  
  51          // Now use a fixture.
  52          $pngpath = $this->fixturepath . 'gd-logo.png';
  53          $pngthumb = generate_image_thumbnail($pngpath, 24, 24);
  54          $this->assertTrue(is_string($pngthumb));
  55  
  56          // And check that the generated image was of the correct proportions and mimetype.
  57          $imageinfo = getimagesizefromstring($pngthumb);
  58          $this->assertEquals(24, $imageinfo[0]);
  59          $this->assertEquals(24, $imageinfo[1]);
  60          $this->assertEquals('image/png', $imageinfo['mime']);
  61      }
  62  
  63      public function test_generate_image_thumbnail_from_string() {
  64          global $CFG;
  65          require_once($CFG->libdir . '/gdlib.php');
  66  
  67          // Test with meaningless data.
  68  
  69          // First empty values.
  70          $this->assertFalse(generate_image_thumbnail_from_string('', 24, 24));
  71          $this->assertFalse(generate_image_thumbnail_from_string('invalid', 0, 24));
  72          $this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 0));
  73  
  74          // Now an invalid string.
  75          $this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 24));
  76  
  77          // Now use a fixture.
  78          $pngpath = $this->fixturepath . 'gd-logo.png';
  79          $pngdata = file_get_contents($pngpath);
  80          $pngthumb = generate_image_thumbnail_from_string($pngdata, 24, 24);
  81          $this->assertTrue(is_string($pngthumb));
  82  
  83          // And check that the generated image was of the correct proportions and mimetype.
  84          $imageinfo = getimagesizefromstring($pngthumb);
  85          $this->assertEquals(24, $imageinfo[0]);
  86          $this->assertEquals(24, $imageinfo[1]);
  87          $this->assertEquals('image/png', $imageinfo['mime']);
  88      }
  89  }