title: class PHPUnit\Framework\ExpectationFailedException not found
body: <p>when I try to run a failed test with this command :
  <code>./vendor/bin/phpunit</code>
  I get this Fatal Error : </p>
  
  <pre><code>PHPUnit 5.7.20 by Sebastian Bergmann and contributors.
  
  PHP Fatal error:  Class 'PHPUnit\Framework\ExpectationFailedException' 
  not found in /var/www/zend/vendor/zendframework/zend-
  test/src/PHPUnit/Controller/AbstractControllerTestCase.php on line 444
  </code></pre>