RouteConstraint(), }, metadata: new object[] { new TestMetadata0(), new TestMetadata0(), }),                 CreateEndpoint("/a/b/c", constraints: new { a = new IntRouteConstraint(), }, metadata: new object[] { new TestMetadata0(), }),                 CreateEndpoint("/a/b/c", constraints: new { a = new IntRouteConstraint(), }, metadata: new object[] { new TestMetadata0(), }),                 CreateEndpoint("/a/b/c", constraints: new { }, metadata: new object[] { }),                 CreateEndpoint("/a/b/c", constraints: new { }, metadata: new object[] { }),             