xref: /dokuwiki/_test/tests/inc/cache_use.test.php (revision 93691af57f65173963a122e19915917814a32b71) 
1<?php
2
3/**
4 * Class cache_use_test
5 *
6 * Tests if caching can actually be used
7 */
8class cache_use_test extends DokuWikiTest {
9    /** @var cache_renderer $cache */
10    private $cache;
11
12    function setUp() {
13        global $ID, $conf;
14        parent::setUp();
15
16        $ID = 'cached';
17        $file = wikiFN($ID);
18        $conf['cachetime'] = 0;  // ensure the value is not -1, which disables caching
19
20        saveWikiText($ID, 'Content', 'Created');
21        // set the modification time a second in the past in order to ensure that the cache is newer than the page
22        touch($file, time()-1);
23
24        $this->cache = new cache_renderer($ID, $file, 'xhtml');
25        $this->cache->storeCache('Test');
26    }
27
28    function test_use() {
29        $this->assertTrue($this->cache->useCache());
30    }
31
32    /**
33     * In all the following tests the cache should not be usable
34     * as such, they are meaningless if test_use didn't pass.
35     *
36     * @depends test_use
37     */
38    function test_purge() {
39        /* @var Input $INPUT */
40        global $INPUT;
41        $INPUT->set('purge',1);
42
43        $this->assertFalse($this->cache->useCache());
44        $this->assertNotEmpty($this->cache->depends['purge']);
45    }
46
47    /**
48     * @depends test_use
49     */
50    function test_filedependency() {
51        // give the dependent src file the same mtime as the cache
52        touch($this->cache->file, filemtime($this->cache->cache));
53        $this->assertFalse($this->cache->useCache());
54    }
55
56    /**
57     * @depends test_use
58     */
59    function test_age() {
60        // need to age both our source file & the cache
61        $age = 10;
62        $time = time() - $age - 1;  // older than age
63
64        touch($this->cache->file, $time - 1);
65        touch($this->cache->cache, $time);
66
67        $this->assertFalse($this->cache->useCache(array('age' => $age)));
68    }
69
70    /**
71     * @depends test_use
72     */
73    function test_confnocaching() {
74        global $conf;
75        $conf['cachetime'] = -1;   // disables renderer caching
76
77        $this->assertFalse($this->cache->useCache());
78        $this->assertNotEmpty($this->cache->_nocache);
79    }
80}