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/cptools/01/run4

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+# Rational:
+# Test that useradd can add an user and userdel removes it.
+
+save()
+{
+	[ ! -d tmp ] && mkdir tmp
+	for i in passwd group shadow gshadow
+	do
+		[ -f /etc/$i  ] && cp /etc/$i  tmp/$i
+	done
+
+	true
+}
+
+restore()
+{
+	for i in passwd group shadow gshadow
+	do
+		[ -f tmp/$i  ] && cp tmp/$i  /etc/$i  && rm tmp/$i
+	done
+	rmdir tmp
+}
+
+save
+
+# restore the files on exit
+trap 'restore' 0
+
+for i in passwd group shadow gshadow
+do
+	cp data/$i /etc
+done
+
+lines_passwd=$(wc -l /etc/passwd | cut -f1 -d" ")
+lines_shadow=$(wc -l /etc/shadow | cut -f1 -d" ")
+lines_group=$(wc -l /etc/group | cut -f1 -d" ")
+lines_gshadow=$(wc -l /etc/gshadow | cut -f1 -d" ")
+
+echo -n "Copy gshadow.new "
+cpgr -s data/gshadow.new
+echo "OK"
+
+echo -n "test if the password file was copied"
+diff -au /etc/gshadow data/gshadow.new
+echo "  OK"
+
+echo -n "check that the other files were not modified"
+diff -au /etc/group data/group
+diff -au /etc/passwd data/passwd
+diff -au /etc/shadow data/shadow
+echo "  OK"