t/io/argv.t See if ARGV stuff works
t/io/binmode.t See if binmode() works
t/io/crlf.t See if :crlf works
+t/io/crlf_through.t See if pipe passes data intact with :crlf
t/io/dup.t See if >& works right
t/io/fflush.t See if auto-flush on fork/exec/system/qx works
t/io/fs.t See if directory manipulations work
t/io/print.t See if print commands work
t/io/read.t See if read works
t/io/tell.t See if file seeking works
+t/io/through.t See if pipe passes data intact
t/io/utf8.t See if file seeking works
t/japh/abigail.t Obscure tests
t/lib/1_compile.t See if the various libraries and extensions compile