What is the legal test for overturning a finding of insufficient evidence in a sexual assault case?

verdict and presume in support of the judgment the existence of every fact the jury could reasonably deduce from the evidence. [Citation.] The same standard applies where the conviction rests primarily on circumstantial evidence. [Citation.] We may not reweigh the evidence or resolve evidentiary conflicts. [Citation.] The testimony of a single witness can be sufficient to uphold a convictioneven when there is significant countervailing evidence, or the testimony is subject to justifiable suspicion. [Citation.] Accordingly, we may not reverse for insufficient evidence unless it appears '"that upon no hypothesis whatever is there sufficient substantial evidence to support [the conviction]."' [Citation.]" (People v. Valenti (2016) 243 Cal.App.4th 1140, 1157-1158.)