/**
  * test routing deletion
  * @covers CacheManager::clearRouting
  */
 public function testClearRouting()
 {
     $this->assertTrue(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlGenerator.php'));
     $this->assertTrue(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlGenerator.php.meta'));
     $this->assertTrue(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlMatcher.php'));
     $this->assertTrue(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlMatcher.php.meta'));
     $this->cache_manager->clearRouting();
     $this->assertFalse(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlGenerator.php'));
     $this->assertFalse(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlGenerator.php.meta'));
     $this->assertFalse(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlMatcher.php'));
     $this->assertFalse(file_exists($this->cacheDir . DIRECTORY_SEPARATOR . 'appDevUrlMatcher.php.meta'));
 }