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b7067f065e
We now abstract the actual file generation to a new function. We are then able to call this function from the other image generation sources. This allows us to generate thumbnails in a more efficient manner. * Stored files stay as stored files and are not temporarily re-written to disk; * Strings containing an image remain as a variable and are not temporarily written to disk; and * Arbitrary files are not captured to string.
90 lines
3.2 KiB
PHP
90 lines
3.2 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Test gd functionality.
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*
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* @package core
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* @category phpunit
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* @copyright 2015 Andrew Nicols <andrew@nicols.co.uk>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* A set of tests for some of the gd functionality within Moodle.
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*
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* @package core
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* @category phpunit
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* @copyright 2015 Andrew Nicols <andrew@nicols.co.uk>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class core_gdlib_testcase extends basic_testcase {
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private $fixturepath = null;
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public function setUp() {
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$this->fixturepath = __DIR__ . DIRECTORY_SEPARATOR . 'fixtures' . DIRECTORY_SEPARATOR;
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}
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public function test_generate_image_thumbnail() {
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global $CFG;
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require_once($CFG->libdir . '/gdlib.php');
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// Test with meaningless data.
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// Now use a fixture.
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$pngpath = $this->fixturepath . 'gd-logo.png';
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$pngthumb = generate_image_thumbnail($pngpath, 24, 24);
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$this->assertTrue(is_string($pngthumb));
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// And check that the generated image was of the correct proportions and mimetype.
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$imageinfo = getimagesizefromstring($pngthumb);
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$this->assertEquals(24, $imageinfo[0]);
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$this->assertEquals(24, $imageinfo[1]);
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$this->assertEquals('image/png', $imageinfo['mime']);
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}
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public function test_generate_image_thumbnail_from_string() {
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global $CFG;
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require_once($CFG->libdir . '/gdlib.php');
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// Test with meaningless data.
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// First empty values.
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$this->assertFalse(generate_image_thumbnail_from_string('', 24, 24));
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$this->assertFalse(generate_image_thumbnail_from_string('invalid', 0, 24));
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$this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 0));
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// Now an invalid string.
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$this->assertFalse(generate_image_thumbnail_from_string('invalid', 24, 24));
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// Now use a fixture.
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$pngpath = $this->fixturepath . 'gd-logo.png';
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$pngdata = file_get_contents($pngpath);
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$pngthumb = generate_image_thumbnail_from_string($pngdata, 24, 24);
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$this->assertTrue(is_string($pngthumb));
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// And check that the generated image was of the correct proportions and mimetype.
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$imageinfo = getimagesizefromstring($pngthumb);
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$this->assertEquals(24, $imageinfo[0]);
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$this->assertEquals(24, $imageinfo[1]);
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$this->assertEquals('image/png', $imageinfo['mime']);
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}
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}
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