PAM plugin with test

mysql-test/suite/plugins/t/pam.test

@@ -0,0 +1,46 @@
+
+--source include/not_embedded.inc
+
+if (!$AUTH_PAM_SO) {
+  skip No pam auth plugin;
+}
+
+if (!$PAM_SETUP_FOR_MTR) {
+  skip No pam setup for mtr;
+}
+
+--replace_result .dll .so
+eval install plugin pam soname '$AUTH_PAM_SO';
+create user test_pam identified via pam using 'mariadb_mtr';
+
+let $plugindir=`SELECT @@global.plugin_dir`;
+
+--write_file $MYSQLTEST_VARDIR/tmp/pam_good.txt
+not very secret challenge
+9225
+select user(), current_user(), database();
+EOF
+
+--write_file $MYSQLTEST_VARDIR/tmp/pam_bad.txt
+not very secret challenge
+9224
+select user(), current_user(), database();
+EOF
+
+--echo #
+--echo # athentication is successful, challenge/pin are ok
+--echo # note that current_user() differts from user()
+--echo #
+--exec $MYSQL_TEST -u test_pam --plugin-dir=$plugindir < $MYSQLTEST_VARDIR/tmp/pam_good.txt
+
+--echo #
+--echo # athentication is unsuccessful
+--echo #
+--error 1
+--exec $MYSQL_TEST -u test_pam --plugin-dir=$plugindir < $MYSQLTEST_VARDIR/tmp/pam_bad.txt
+
+--remove_file $MYSQLTEST_VARDIR/tmp/pam_good.txt
+--remove_file $MYSQLTEST_VARDIR/tmp/pam_bad.txt
+drop user test_pam;
+uninstall plugin pam;
+