What is the test for competent evidence in a criminal case?

'It is the law that evidence which tends logically and by reasonable inference to established any fact material to the People's case * * * is competent although it may connect the defendant with a crime not included in the accusation. [citing cases.] Such evidence is admissible when it tends to establish intent, guilty knowledge, motive, a common scheme, plan or system.' (People v. Sizelove (1955) 134 Cal.App.2d 104, 107, 285 P.2d 4, 7.)