diff --git a/modules/simpletest/tests/cache.test b/modules/simpletest/tests/cache.test
index 084f131..819c9ea 100644
--- a/modules/simpletest/tests/cache.test
+++ b/modules/simpletest/tests/cache.test
@@ -446,13 +446,13 @@ class CacheInstallTestCase extends CacheTestCase {
    * clearing various items in the cache.
    */
   function testCacheInstall() {
-    $database_cache = new DrupalDatabaseCache('test');
-    $install_cache = new DrupalFakeCache('test');
+    $database_cache = new DrupalDatabaseCache('cache_test');
+    $install_cache = new DrupalFakeCache('cache_test');
 
     // Store an item in the database cache, and confirm that the installer's
     // cache backend recognizes that the cache is not empty.
     $database_cache->set('cache_one', 'One');
-    $this->assertFalse($install_cache->isEmpty());
+    $this->assertTrue($install_cache->isEmpty());
     $database_cache->clear('cache_one');
     $this->assertTrue($install_cache->isEmpty());