t/lib/trig.t See if Math::Trig works
t/op/64bit.t See if 64 bitness works
t/op/append.t See if . works
+t/op/args.t See if operations on @_ work
t/op/arith.t See if arithmetic works
t/op/array.t See if array operations work
t/op/assignwarn.t See if OP= operators warn correctly for undef targets