system/Router/RouteCollection.php
public function resetRoutes()
	{
		$this->routes = ['*' => []];
		foreach ($this->defaultHTTPMethods as $verb)
		{
			$this->routes[$verb] = [];
		}
	}
public function resetRoutes()
	{
		$this->routes = ['*' => []];
		foreach ($this->defaultHTTPMethods as $verb)
		{
			$this->routes[$verb] = [];
		}
	}
Reset the routes, so that a FeatureTestCase can provide the
explicit ones needed for it.