I vaguely recall some variant of MC/DC coverage that also treats each bit in any bit flag checks as independent boolean conditions. It seems like there could be

I vaguely recall some variant of MC/DC coverage that also treats each bit in any bit flag checks as independent boolean conditions. It seems like there could be a similar variant that requires checking each value of such a "leveled" enum independently; if your enum says you can take on values 0-5 and the logic checks <= 2 and <= 5, nonetheless there should be a test case for 0, 1, 3, and 4.