diff --git a/tests/MainTest.php b/tests/MainTest.php
index e48d57f..537116e 100644
--- a/tests/MainTest.php
+++ b/tests/MainTest.php
@@ -33,6 +33,15 @@ public function setUp()
         $this->fileService->init();
     }
 
+    /** Test configuration of inner file service */
+    public function testConfigure()
+    {
+        require(__DIR__.'/TestEntityConfig.php');
+        $this->fileService->configure(new TestEntityConfig());
+
+        $this->assertArrayHasKey('testParam', $this->fileService->configuration);
+    }
+
     /** Test isDir */
     public function testIsDir()
     {
diff --git a/tests/TestEntityConfig.php b/tests/TestEntityConfig.php
new file mode 100644
index 0000000..5486d0d
--- /dev/null
+++ b/tests/TestEntityConfig.php
@@ -0,0 +1,15 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: egorov
+ * Date: 10.01.2015
+ * Time: 18:32
+ */
+
+namespace tests;
+
+
+class TestEntityConfig extends \samsonos\config\Entity
+{
+    public $testParam = 'testParam';
+} 
\ No newline at end of file