What is the test for determining whether a person's intent to commit a crime was proven on appeal?

"Contrary to what he claims, defendant's self-serving testimony was not the only evidence of his intent . . . . 'Because intent is rarely susceptible of direct proof, it may be inferred from all the facts and circumstances disclosed by the evidence. [Citations.] Whether the entry was accompanied by the requisite intent is a question of fact for the [fact finder]. [Citation.] "Where the facts and circumstances of a particular case and the conduct of the defendant reasonably indicate his purpose in entering the premises is to commit larceny or any felony, the conviction may not be disturbed on appeal."'" (People v. Sanghera (2006) 139 Cal.App.4th 1567, 1574.)