Add amulet test that runs 'killall -9 mysqld' in the master node

tests/30-kill-9-mysqld.py

@@ -0,0 +1,38 @@
+#!/usr/bin/python3
+# test percona-cluster (3 nodes)
+
+import basic_deployment
+import time
+
+
+class ThreeNode(basic_deployment.BasicDeployment):
+    def __init__(self):
+        super(ThreeNode, self).__init__(units=3)
+
+    def run(self):
+        super(ThreeNode, self).run()
+        # we are going to kill the master
+        old_master = self.master_unit
+        print('kill-9 mysqld in %s' % str(self.master_unit.info))
+        self.master_unit.run('sudo killall -9 mysqld')
+
+        print('looking for the new master')
+        i = 0
+        changed = False
+        while i < 10 and not changed:
+            i += 1
+            time.sleep(5)  # give some time to pacemaker to react
+            new_master = self.find_master()
+
+            if (new_master and new_master.info['unit_name'] !=
+                    old_master.info['unit_name']):
+                changed = True
+
+        assert changed, "The master didn't change"
+
+        assert self.is_port_open(address=self.vip), 'cannot connect to vip'
+
+
+if __name__ == "__main__":
+    t = ThreeNode()
+    t.run()

tests/basic_deployment.py

@@ -3,6 +3,7 @@ import os
 import telnetlib
 import unittest
 import yaml
+from charmhelpers.contrib.amulet.deployment import AmuletDeployment
 
 
 class BasicDeployment(unittest.TestCase):
@@ -39,7 +40,7 @@ class BasicDeployment(unittest.TestCase):
 
         cfg_percona = {'sst-password': 'ubuntu',
                        'root-password': 't00r',
-                       'dataset-size': '128M',
+                       'dataset-size': '512M',
                        'vip': self.vip}
 
         cfg_ha = {'debug': True,