This test tabs with different combinations of modifiers pressed, where some should advance focus and some should not. resetting focus to middle input - focus event: b test tab case that should advance focus - keydown event: b - blur event: b - focus event: c resetting focus to middle input - blur event: c - focus event: b test tab case that should advance focus - keydown event: b - blur event: b - focus event: a resetting focus to middle input - blur event: a - focus event: b test tab case that should not advance focus - keydown event: b resetting focus to middle input test tab case that should not advance focus - keydown event: b resetting focus to middle input test tab case that should not advance focus - keydown event: b resetting focus to middle input test tab case that should not advance focus - keydown event: b resetting focus to middle input test tab case that should not advance focus - keydown event: b resetting focus to middle input test tab case that should not advance focus - keydown event: b