Rename var

tests/Composer/Test/Downloader/XzDownloaderTest.php

@@ -25,20 +25,20 @@ class XzDownloaderTest extends \PHPUnit_Framework_TestCase
     /**
      * @var string
      */
-    private $testName;
+    private $testDir;
 
     public function setUp()
     {
         if (defined('PHP_WINDOWS_VERSION_BUILD')) {
             $this->markTestSkipped('Skip test on Windows');
         }
-        $this->testName = sys_get_temp_dir().'/composer-xz-test-vendor';
+        $this->testDir = sys_get_temp_dir().'/composer-xz-test-vendor';
     }
 
     public function tearDown()
     {
         $this->fs = new Filesystem;
-        $this->fs->removeDirectory($this->testName);
+        $this->fs->removeDirectory($this->testDir);
     }
 
     public function testErrorMessages()
@@ -62,7 +62,7 @@ class XzDownloaderTest extends \PHPUnit_Framework_TestCase
         $config->expects($this->any())
             ->method('get')
             ->with('vendor-dir')
-            ->will($this->returnValue($this->testName));
+            ->will($this->returnValue($this->testDir));
         $downloader = new XzDownloader($io, $config);
 
         try {