What is the test for determining whether a complaint states a claim on which relief may be granted?

In determining whether a complaint states a claim on which relief may be granted, the court accepts as true the allegations in the complaint and construes the allegations in the light most favorable to the plaintiff. Hishon v. King & Spalding, 467 U.S. 69, 73 (1984); Love v. United States, 915 F.2d 1242, 1245 (9th Cir. 1989); see also Rodriguez v. Panayiotou, 314 F.3d 979, 983 (9th Cir. 2002). A court is not "required to accept as true allegations that are merely conclusory, unwarranted deductions of fact, or unreasonable inferences." Sprewell v. Golden State Warriors, 266 F.3d 979, 988 (9th Cir. 2001).