Rewrite the testsuite

The aim is to run pies in foreground if possible. Limit execution time
using external wrapper.

* src/pies.c: (_cb_redir): Consistently return 1 on errors.

* tests/aux/sleepexit: New file.
* tests/aux/startcheck: New file.
* tests/aux/touchfile: Change arguments.
* tests/aux/respawn: Rewrite.

* tests/lines.c: New noinst program.
* tests/to.c: New noinst program.
* tests/.gitignore: Add new programs.
* tests/Makefile.am: Update.
* tests/env.at: Use to to avoid hanging forever.
Add missing popdef.
* tests/redirect.at: Use echo as component program.
* tests/respawn.at: Run pies in foreground. Use to to limit execution
time.
* tests/shell.at: Likewise.
* tests/shutdown.at: Likewise.
* tests/startup.at: Likewise.
* tests/ret-exec.at: Use sleepexit as component program.
* tests/ret-notify.at: Likewise.

1 files changed, 5 insertions, 5 deletions

diff --git a/tests/aux/touchfile b/tests/aux/touchfile
index b9d92a3..a3a2668 100755
--- a/tests/aux/touchfile
+++ b/tests/aux/touchfile
@@ -1,7 +1,7 @@
 #!/bin/sh
-dir=${1:?}
-time=${2:?}
-tag=${3:?}
+file=${1:?}
+time=${2:-0}
+tag=${3:-$file}
 
-touch $dir/$tag
-sleep $time
+echo $tag > $file
+test $time -ne 0 && sleep $time