public function testMatchWithDynamicPrefix() {
$collection1 = new RouteCollection();
$collection1
->add('foo', new Route('/{foo}'));
$collection2 = new RouteCollection();
$collection2
->addCollection($collection1, '/b');
$collection = new RouteCollection();
$collection
->addCollection($collection2, '/{_locale}');
$matcher = new UrlMatcher($collection, new RequestContext());
$this
->assertEquals(array(
'_locale' => 'fr',
'_route' => 'foo',
'foo' => 'foo',
), $matcher
->match('/fr/b/foo'));
}