What is the test for determining whether there is sufficient evidence to convict a defendant?

In determining whether there is sufficient evidence to support a conviction, this court reviews "the whole record in the light most favorable to the judgment below to determine whether it discloses substantial evidence - that is, evidence which is reasonable, credible, and of solid value - such that a reasonable trier of fact could find the defendant guilty beyond a reasonable doubt." (People v. Johnson (1980) 26 Cal.3d 557,

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578.) Furthermore, we "'presume in support of the judgment the existence of every fact the trier could reasonably deduce from the evidence,'" and "'resolve the issue in the light of the whole record . . . .'" (Id. at p. 576.) "[U]nless the testimony is physically impossible or inherently improbable, testimony of a single witness is sufficient to support a conviction. [Citation.]" (People v. Young (2005) 34 Cal.4th 1149, 1181.)