What is the test for ineffective assistance of counsel on appeal?

"A claim on appeal of ineffective assistance of counsel must be rejected ' "[if] the record on appeal sheds no light on why counsel acted or failed to act in the manner challenged[,] . . . unless counsel was asked for an explanation and failed to provide one, or unless there simply could be no satisfactory explanation." ' [Citations.] Unless the record affirmatively discloses that counsel had no tactical purpose for his act or omission, 'the conviction will be affirmed and the defendant relegated to habeas corpus proceedings at which evidence dehors the record may be taken to determine the basis, if any, for counsel's conduct or omission.' " (People v. Hinds (2003) 108 Cal.App.4th 897, 901.)⁸

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