What is the test for reasonableness in a civil case?

"For a constitutional right to be clearly established, its contours must be sufficiently clear that a reasonable officer would understand that what he is doing violates that right." Hope v. Pelzer, 536 U.S. 730, 739 (2002). While the reasonableness inquiry may not be undertaken as a broad, general proposition, neither is official action entitled to protection "unless the very action in question has previously been held unlawful." Hope, 536 U. S. at 739. "Specificity only requires that the unlawfulness be apparent under preexisting law," Clement v. Gomez, 298 F.3d 898, 906 (9th Cir. 2002) (citation omitted), and prison personnel "can still be on notice that their conduct violates established law even in novel factual circumstances[,]" Hope, 536 U.S. at 741.