Doctrine\Common\DataFixtures\Loader::loadFromFile PHP Method

    public function loadFromFile($fileName)
    {
        if (!is_readable($fileName)) {
            throw new \InvalidArgumentException(sprintf('"%s" does not exist or is not readable', $fileName));
        }
        $iterator = new \ArrayIterator(array(new \SplFileInfo($fileName)));
        return $this->loadFromIterator($iterator);
    }

 public function testLoadFromFile()
 {
     $loader = new Loader();
     $loader->addFixture($this->getMock('Doctrine\\Common\\DataFixtures\\FixtureInterface'), array(), array(), 'Mock1');
     $loader->addFixture($this->getMock('Doctrine\\Common\\DataFixtures\\FixtureInterface', array(), array(), 'Mock2'));
     $loader->addFixture($this->getMock('Doctrine\\Common\\DataFixtures\\SharedFixtureInterface', array(), array(), 'Mock3'));
     $this->assertCount(3, $loader->getFixtures());
     $loader->loadFromFile(__DIR__ . '/TestFixtures/MyFixture1.php');
     $this->assertCount(4, $loader->getFixtures());
     $loader->loadFromFile(__DIR__ . '/TestFixtures/NotAFixture.php');
     $this->assertCount(4, $loader->getFixtures());
     $loader->loadFromFile(__DIR__ . '/TestFixtures/MyFixture2.php');
     $this->assertCount(5, $loader->getFixtures());
     $this->assertTrue($loader->isTransient('TestFixtures\\NotAFixture'));
     $this->assertFalse($loader->isTransient('TestFixtures\\MyFixture1'));
 }