What is the test for admitting evidence of uncharged misconduct in a criminal case?

^7. Evidence Code section 1101, subdivision (a) "prohibits admission of evidence of a person's character, including evidence of character in the form of specific instances of uncharged misconduct, to prove the conduct of that person on a specified occasion. Subdivision (b) of section 1101 clarifies, however, that this rule does not prohibit admission of evidence of uncharged misconduct when such evidence is relevant to establish some fact other than the person's character or disposition." (People v. Ewoldt (1994) 7 Cal.4th 380, 393, fn. omitted.)