t/op/ref.t See if refs and objects work
t/op/regexp.t See if regular expressions work
t/op/repeat.t See if x operator works
+t/op/runlevel.t See if die() works from perl_call_*()
t/op/sleep.t See if sleep works
t/op/sort.t See if sort works
t/op/split.t See if split works
t/op/subst.t See if substitution works
t/op/substr.t See if substr works
t/op/sysio.t See if sysread and syswrite work
+t/op/taint.t See if tainting works
t/op/tie.t See if tie/untie functions work
t/op/time.t See if time functions work
t/op/undef.t See if undef works