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[github/shaarli/Shaarli.git] / tests / CacheTest.php
1 <?php
2 /**
3 * Cache tests
4 */
5
6 // required to access $_SESSION array
7 session_start();
8
9 require_once 'application/Cache.php';
10
11 /**
12 * Unitary tests for cached pages
13 */
14 class CacheTest extends PHPUnit_Framework_TestCase
15 {
16 // test cache directory
17 protected static $testCacheDir = 'sandbox/dummycache';
18
19 // dummy cached file names / content
20 protected static $pages = array('a', 'toto', 'd7b59c');
21
22
23 /**
24 * Populate the cache with dummy files
25 */
26 public function setUp()
27 {
28 if (! is_dir(self::$testCacheDir)) {
29 mkdir(self::$testCacheDir);
30 } else {
31 array_map('unlink', glob(self::$testCacheDir.'/*'));
32 }
33
34 foreach (self::$pages as $page) {
35 file_put_contents(self::$testCacheDir.'/'.$page.'.cache', $page);
36 }
37 file_put_contents(self::$testCacheDir.'/intru.der', 'ShouldNotBeThere');
38 }
39
40 /**
41 * Remove dummycache folder after each tests.
42 */
43 public function tearDown()
44 {
45 array_map('unlink', glob(self::$testCacheDir.'/*'));
46 rmdir(self::$testCacheDir);
47 }
48
49 /**
50 * Purge cached pages
51 */
52 public function testPurgeCachedPages()
53 {
54 purgeCachedPages(self::$testCacheDir);
55 foreach (self::$pages as $page) {
56 $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
57 }
58
59 $this->assertFileExists(self::$testCacheDir.'/intru.der');
60 }
61
62 /**
63 * Purge cached pages - missing directory
64 */
65 public function testPurgeCachedPagesMissingDir()
66 {
67 $oldlog = ini_get('error_log');
68 ini_set('error_log', '/dev/null');
69 $this->assertEquals(
70 'Cannot purge sandbox/dummycache_missing: no directory',
71 purgeCachedPages(self::$testCacheDir.'_missing')
72 );
73 ini_set('error_log', $oldlog);
74 }
75
76 /**
77 * Purge cached pages and session cache
78 */
79 public function testInvalidateCaches()
80 {
81 $this->assertArrayNotHasKey('tags', $_SESSION);
82 $_SESSION['tags'] = array('goodbye', 'cruel', 'world');
83
84 invalidateCaches(self::$testCacheDir);
85 foreach (self::$pages as $page) {
86 $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
87 }
88
89 $this->assertArrayNotHasKey('tags', $_SESSION);
90 }
91 }