xref: /dokuwiki/_test/tests/inc/media_resize.test.php (revision c3a14f677ee1ae0cdba278e7ba21602e6cabba18) 
1<?php
2
3/**
4 * Tests for the $upscale option of the image resize helpers.
5 *
6 * Fixture wiki:dokuwiki-128.png is a 128x128 PNG.
7 */
8class media_resize_test extends DokuWikiTest {
9
10    /** @var string */
11    protected $img = 'wiki:dokuwiki-128.png';
12
13    public function test_resize_no_upscale_keeps_original_size() {
14        $file = mediaFN($this->img);
15        // 128x128 fit into a 500x500 box with upscaling disabled -> stays 128x128
16        $out = media_resize_image($file, 'png', 500, 500, false);
17        $this->assertNotEquals($file, $out, 'a cache file should have been produced');
18        $this->assertFileExists($out);
19        [$w, $h] = getimagesize($out);
20        $this->assertSame(128, $w);
21        $this->assertSame(128, $h);
22    }
23
24    public function test_resize_default_still_upscales() {
25        $file = mediaFN($this->img);
26        // default behaviour (in-page images) still enlarges as before
27        $out = media_resize_image($file, 'png', 500, 500);
28        $this->assertFileExists($out);
29        [$w, $h] = getimagesize($out);
30        $this->assertSame(500, $w);
31        $this->assertSame(500, $h);
32    }
33
34    public function test_upscale_and_no_upscale_use_separate_caches() {
35        $file = mediaFN($this->img);
36        $up = media_resize_image($file, 'png', 500, 500);
37        $noup = media_resize_image($file, 'png', 500, 500, false);
38        $this->assertNotEquals($up, $noup, 'the two variants must not share a cache file');
39    }
40}
41