What is the test for exhaustion on a habeas petition?

state court with an opportunity to rule on the merits of the claim . . .; or (2) by showing that at the time the petitioner filed the habeas petition in federal court no state remedies are available to the petitioner and the petitioner has not deliberately by-passed the state remedies." Batchelor v. Cupp , 693 F.2d 859, 862 (9th Cir. 1982) (citations omitted). Exhaustion is not a jurisdictional requirement and the court may raise the issue sua sponte. See Simmons v. Blodgett, 110 F.3d 39, 41 (9th Cir. 1997).