public function testNullDumper() {
$dumper = new NullDumper();
$definition = new Definition('stdClass');
$this
->assertFalse($dumper
->isProxyCandidate($definition));
$this
->assertSame('', $dumper
->getProxyFactoryCode($definition, 'foo'));
$this
->assertSame('', $dumper
->getProxyCode($definition));
}