public function testSupports()
{
$loader = new XmlFileLoader($this->getMock('Symfony\\Component\\Config\\FileLocator'));
$this->assertTrue($loader->supports('foo.xml'), '->supports() returns true if the resource is loadable');
$this->assertFalse($loader->supports('foo.foo'), '->supports() returns true if the resource is loadable');
$this->assertTrue($loader->supports('foo.xml', 'xml'), '->supports() checks the resource type if specified');
$this->assertFalse($loader->supports('foo.xml', 'foo'), '->supports() checks the resource type if specified');
}