What is the test for denying a motion for a mistrial on the grounds of misconduct?

Under the circumstances, we conclude that, assuming misconduct occurred, it did not prejudice defendant. The incident was simply not significant in the context of the trial as a whole. (See People v. Bolden (2002) 29 Cal.4th 515, 555.) It follows the trial court did not abuse its discretion by denying defendant's motion for mistrial, as such a motion should be granted only when the trial court determines a party's chances of receiving a fair trial have been irreparably damaged. (Ibid.)