Change create_extension() at bank_client.py: connection string in mtm.init_cluster() is formed in accordance with size of dsns list.

Author: danolivo

tests/lib/bank_client.py

@@ -168,11 +168,16 @@ def create_extension(self):
             cur.close()
             con.close()
 
+        connstr = " "
+        for i in range(len(self.dsns)-1):
+        	connstr = connstr + "\"dbname=regression user=pg host=192.168.253." + str(i+2) + "\""
+        	if (i < len(self.dsns) - 2):
+        		connstr = connstr + ", "
+
         conn = psycopg2.connect(self.dsns[0])
         cur = conn.cursor()
         cur.execute("select mtm.init_cluster($$%s$$, $${%s}$$);" %
-            ("dbname=regression user=pg host=192.168.253.1",
-            '"dbname=regression user=pg host=192.168.253.2", "dbname=regression user=pg host=192.168.253.3"'))
+            ("dbname=regression user=pg host=192.168.253.1", connstr))
         conn.commit()
         cur.close()
         conn.close()