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 CachedTest extends PHPUnit_Framework_TestCase
  15 {
  16     // test cache directory
  17     protected static $testCacheDir = 'tests/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::$testCacheDir);
  30         }
  31
  32         foreach (self::$pages as $page) {
  33             file_put_contents(self::$testCacheDir.'/'.$page.'.cache', $page);
  34         }
  35     }
  36
  37     /**
  38      * Purge cached pages
  39      */
  40     public function testPurgeCachedPages()
  41     {
  42         purgeCachedPages(self::$testCacheDir);
  43         foreach (self::$pages as $page) {
  44             $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
  45         }
  46     }
  47
  48     /**
  49      * Purge cached pages and session cache
  50      */
  51     public function testInvalidateCaches()
  52     {
  53         $this->assertArrayNotHasKey('tags', $_SESSION);
  54         $_SESSION['tags'] = array('goodbye', 'cruel', 'world');
  55
  56         invalidateCaches(self::$testCacheDir);
  57         foreach (self::$pages as $page) {
  58             $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
  59         }
  60
  61         $this->assertArrayNotHasKey('tags', $_SESSION);
  62     }
  63 }