public function testSchemeIsBC() {
$route = new Route('/');
$route
->setRequirement('_scheme', 'http|https');
$this
->assertEquals('http|https', $route
->getRequirement('_scheme'));
$this
->assertEquals(array(
'http',
'https',
), $route
->getSchemes());
$route
->setSchemes(array(
'hTTp',
));
$this
->assertEquals('http', $route
->getRequirement('_scheme'));
$route
->setSchemes(array());
$this
->assertNull($route
->getRequirement('_scheme'));
}