diff --git a/tests/src/FFMpeg/Format/Video/OggTest.php b/tests/src/FFMpeg/Format/Video/OggTest.php
index 7084bca..5f4b378 100644
--- a/tests/src/FFMpeg/Format/Video/OggTest.php
+++ b/tests/src/FFMpeg/Format/Video/OggTest.php
@@ -15,6 +15,9 @@ class OggTest extends \PHPUnit_Framework_TestCase
         $this->object = new Ogg(320, 320);
     }
 
+    /**
+     * @covers FFMpeg\Format\Video\Ogg::__construct
+     */
     public function testConstruct()
     {
         $this->assertInstanceOf('\\FFMpeg\\Format\\DefaultVideoFormat', $this->object);
diff --git a/tests/src/FFMpeg/Format/Video/WebMTest.php b/tests/src/FFMpeg/Format/Video/WebMTest.php
index ffb7abf..57511e3 100644
--- a/tests/src/FFMpeg/Format/Video/WebMTest.php
+++ b/tests/src/FFMpeg/Format/Video/WebMTest.php
@@ -39,6 +39,9 @@ class WebMTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue(is_scalar($this->object->getExtraParams()));
     }
 
+    /**
+     * @covers FFMpeg\Format\Video\WebM::__construct
+     */
     public function testConstruct()
     {
         $this->assertInstanceOf('\\FFMpeg\\Format\\DefaultVideoFormat', $this->object);
diff --git a/tests/src/FFMpeg/Format/Video/X264Test.php b/tests/src/FFMpeg/Format/Video/X264Test.php
index 5a69438..2c9b2a4 100644
--- a/tests/src/FFMpeg/Format/Video/X264Test.php
+++ b/tests/src/FFMpeg/Format/Video/X264Test.php
@@ -15,6 +15,9 @@ class X264Test extends \PHPUnit_Framework_TestCase
         $this->object = new X264(320, 320);
     }
 
+    /**
+     * @covers FFMpeg\Format\Video\X264::__construct
+     */
     public function testConstruct()
     {
         $this->assertInstanceOf('\\FFMpeg\\Format\\DefaultVideoFormat', $this->object);