added SQL test case for information_schema plugin.

test/sql/r/information_schema.result

@@ -0,0 +1,17 @@
+install plugin groonga soname 'ha_groonga.so';
+install plugin groonga_stats soname 'ha_groonga.so';
+set storage_engine=groonga;
+drop table if exists t1;
+show plugins;
+Name	Status	Type	Library	License
+binlog	ACTIVE	STORAGE ENGINE	NULL	GPL
+partition	ACTIVE	STORAGE ENGINE	NULL	GPL
+CSV	ACTIVE	STORAGE ENGINE	NULL	GPL
+MEMORY	ACTIVE	STORAGE ENGINE	NULL	GPL
+InnoDB	DISABLED	STORAGE ENGINE	NULL	GPL
+MyISAM	ACTIVE	STORAGE ENGINE	NULL	GPL
+MRG_MYISAM	ACTIVE	STORAGE ENGINE	NULL	GPL
+groonga	ACTIVE	STORAGE ENGINE	ha_groonga.so	PROPRIETARY
+groonga_stats	ACTIVE	INFORMATION SCHEMA	ha_groonga.so	PROPRIETARY
+uninstall plugin groonga_stats;
+uninstall plugin groonga;

test/sql/t/information_schema.test

@@ -0,0 +1,29 @@
+# Copyright(C) 2010 Tetsuro IKEDA
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+--disable_warnings
+install plugin groonga soname 'ha_groonga.so';
+install plugin groonga_stats soname 'ha_groonga.so';
+set storage_engine=groonga;
+drop table if exists t1;
+--enable_warnings
+
+show plugins;
+
+--disable_warnings
+uninstall plugin groonga_stats;
+uninstall plugin groonga;
+--enable_warnings