Fix VFS file stream and improve bootstrap process of EcomDev PHPUnit extension

.travis/composer.json

 {
     "require": {
-        "ecomdev/mage-ci": "*"
+        "ecomdev/mage-ci": "*",
+        "mikey179/vfsStream": "*"
     },
     "config": {
         "bin-dir": "bin"

app/code/community/EcomDev/PHPUnit/Model/Fixture.php

@@ -737,7 +737,8 @@ class EcomDev_PHPUnit_Model_Fixture
             return $this->_vfs;
         }
 
-        if (is_dir(Mage::getBaseDir('lib')  . DS . 'vfsStream' . DS . 'src')) {
+        if (!class_exists('\org\bovigo\vfs\vfsStream')
+            && is_dir(Mage::getBaseDir('lib')  . DS . 'vfsStream' . DS . 'src')) {
             spl_autoload_register(array($this, 'vfsAutoload'), true, true);
         }
 

app/code/community/EcomDev/PHPUnit/Model/Fixture/Vfs.php

@@ -35,14 +35,6 @@ class EcomDev_PHPUnit_Model_Fixture_Vfs
      */
     protected $_currentRoot = array();
 
-    /**
-     * Initializes VFS stream wrapper/
-     */
-    public function __construct()
-    {
-        Stream::setup();
-    }
-
     /**
      * Applies VFS directory structure
      *
@@ -53,8 +45,10 @@ class EcomDev_PHPUnit_Model_Fixture_Vfs
      */
     public function apply($data)
     {
-        $this->_currentRoot[] = StreamWrapper::getRoot();
-        Stream::create($data);
+        if (StreamWrapper::getRoot()) {
+            $this->_currentRoot[] = StreamWrapper::getRoot();
+        }
+        Stream::setup('root', null, $data);
         return $this;
     }
 
@@ -97,6 +91,10 @@ class EcomDev_PHPUnit_Model_Fixture_Vfs
      */
     public function url($path)
     {
+        if (strpos($path, StreamWrapper::getRoot()->getName()) === false) {
+            $path = StreamWrapper::getRoot()->getName() . '/' . $path;
+        }
+
         return Stream::url($path);
     }
 }

app/code/community/EcomDev/PHPUnit/bootstrap.php

@@ -7,7 +7,6 @@ if (version_compare(PHP_VERSION, '5.3', '<')) {
 
 $_baseDir = getcwd();
 
-
 // Include Mage file by detecting app root
 require_once $_baseDir . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Mage.php';
 
@@ -29,13 +28,25 @@ if (!empty($_GET)) {
 Mage::app('admin');
 Mage::getConfig()->init();
 
+// Removing Varien Autoload, to prevent errors with PHPUnit components
 spl_autoload_unregister(array(\Varien_Autoload::instance(), 'autoload'));
 
-spl_autoload_register(function ($classname) {
-    $classname = ltrim($classname, "\\");
-    preg_match('/^(.+)?([^\\\\]+)$/U', $classname, $match);
-    $classname = str_replace("\\", "/", $match[1])
-        . str_replace(array("\\", "_"), "/", $match[2])
-        . ".php";
-    @include_once $classname;
-});
+// It is possible to include custom bootstrap file by specifying env variable shell
+// or in server
+if (isset($_SERVER['ECOMDEV_PHPUNIT_CUSTOM_BOOTSTRAP'])) {
+    include $_SERVER['ECOMDEV_PHPUNIT_CUSTOM_BOOTSTRAP'];
+}
+
+if (!defined('ECOMDEV_PHPUNIT_NO_AUTOLOADER')) {
+    spl_autoload_register(function ($className) {
+        $filePath = strtr(
+            ltrim($className, '\\'),
+            array(
+                '\\' => '/',
+                '_'  => '/'
+            )
+        );
+
+        @include $filePath . '.php';
+    });
+}

lib/EcomDev/PHPUnit/Constraint/Config/Resource/Script.php

@@ -140,7 +140,6 @@ class EcomDev_PHPUnit_Constraint_Config_Resource_Script
             )
         );
 
-
         if (!is_dir($directory)) {
             return $versions;
         }