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/usertools/01/26_useradd_UID_-1.test

@@ -0,0 +1,52 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../common/config.sh
+. ../../common/log.sh
+
+log_start "$0" "Add a new user"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Create user test1 with UID 4294967295 (useradd -u 4294967295 test1)..."
+msg=$(useradd -u 4294967295 test1 2>&1) && exit 1 || {
+	status=$?
+}
+echo "OK"
+echo "useradd returned status $status,"
+echo "and displayed \"$msg\""
+echo -n "The returned status should be 3..."
+test "$status" = "3"
+echo "OK"
+echo -n "Test the error message (should be \"useradd: invalid user ID '4294967295'\")..."
+test "$msg" = "useradd: invalid user ID '4294967295'"
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../common/compare_file.pl 26_useradd_UID_-1/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../common/compare_file.pl 26_useradd_UID_-1/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../common/compare_file.pl 26_useradd_UID_-1/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../common/compare_file.pl 26_useradd_UID_-1/gshadow /etc/gshadow
+echo "OK"
+echo -n "no homedir..."
+test -d /home/test1 && exit 1 || true
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+