Add tests from the old svn tree

We're losing the svn history (which we could probably keep if we tried
hard enough) but don't consider that worthwhile.

Note these tests are destructive, so run them only in a throwaway
environment like a chroot, container, or vm.

The tests/run.all script should be the one which launches all the tests.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

tests/grouptools/groupmems/60_groupmems_authentication_failure3/run_groupmems.exp

@@ -0,0 +1,42 @@
+#!/usr/bin/expect
+
+set timeout 3
+expect_after default {puts "\nFAIL"; exit 1}
+
+if {$argc != 0} {
+	puts "usage: run_groupmems.exp"
+	exit 1
+}
+
+# First, switch to the testsuite user
+# (otherwise, no password will be asked)
+send_user "# switch to the 'myuser' user\n"
+send_user "# and expect a '$ ' prompt\n"
+spawn /bin/su myuser
+
+expect "$ "			;# Wait for the prompt
+
+send_user "\n# make sure we are now 'myuser'"
+send_user "\n# id should return 'uid=424242(myuser) gid=424242(myuser) groups=424242(myuser),99(groupmems)'"
+send "\r"			;# restore the prompt for the logs
+send "id\r"			;# Verify we are really testsuite
+
+expect "uid=424242(myuser) gid=424242(myuser) groups=424242(myuser),99(groupmems)"
+
+expect "$ "			;# Wait for the prompt
+
+send_user "\n\n"
+send_user "# now add user utest1 to the myuser group\n"
+send_user "# and expect a password prompt"
+send "\r"			;# restore the prompt for the logs
+send "/usr/sbin/groupmems -a nobody\r"
+expect -re "groupmems: PAM: Critical error . immediate abort"
+
+expect "$ "			;# Wait for the prompt
+send "echo $?\r"
+expect "1\r"
+expect "$ "			;# Wait for the prompt
+close
+
+puts "\nPASS"
+exit 0