Implement test_AutoScalingMultiAZSample.py

Fixes issue #200

Change-Id: Iaea2d01a9659c703986d009fb9c0605ba6d0279f
Signed-off-by: Steven Dake <sdake@redhat.com>

heat/tests/functional/test_AutoScalingMultiAZSample.py

@@ -0,0 +1,81 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#
+
+import util
+import verify
+import nose
+from nose.plugins.attrib import attr
+import unittest
+import os
+from time import sleep
+
+
+@attr(speed='slow')
+@attr(tag=['func', 'autoscaling', 'AutoScalingMultiAZSample.template'])
+class AutoScalingMultiAZSampleFunctionalTest(unittest.TestCase):
+    def setUp(self):
+        template = 'AutoScalingMultiAZSample.template'
+
+        stack_paramstr = ';'.join(['InstanceType=m1.small',
+                         'DBUsername=dbuser',
+                         'DBPassword=' + os.environ['OS_PASSWORD']])
+
+        self.stack = util.Stack(template, 'F17', 'x86_64', 'cfntools',
+            stack_paramstr)
+        self.WebServerGroup0 = util.Instance('WebServerGroup-0')
+
+    def tearDown(self):
+        pass
+        self.stack.cleanup()
+
+    def test_instance(self):
+        self.stack.create()
+        self.WebServerGroup0.wait_for_boot()
+        self.WebServerGroup0.check_cfntools()
+        self.WebServerGroup0.wait_for_provisioning()
+
+        # TODO: verify the code below tests the template properly
+
+# TODO(sdake) use a util exists function for nonexistent instances (needs dev)
+        # Trigger the load balancer by taking up memory
+        self.WebServerGroup0.exec_command('memhog -r100000 1500m')
+
+        # Give the load balancer 2 minutes to react
+        sleep(2 * 60)
+
+        self.WebServerGroup1 = util.Instance('WebServerGroup-1')
+        # Verify the second instance gets launched
+        self.assertTrue(self.WebServerGroup1.exists())
+        self.WebServerGroup1.wait_for_boot()
+        self.WebServerGroup1.check_cfntools()
+        self.WebServerGroup1.wait_for_provisioning()
+
+        # ensure wordpress was installed by checking for expected
+        # configuration file over ssh
+        self.assertTrue(self.WebServerGroup0.file_present
+                        ('/etc/wordpress/wp-config.php'))
+        print "Wordpress installation detected on WSG0"
+
+        # ensure wordpress was installed by checking for expected
+        # configuration file over ssh
+        self.assertTrue(self.WebServerGroup1.file_present
+                        ('/etc/wordpress/wp-config.php'))
+        print "Wordpress installation detected on WSG1"
+
+        # Verify the output URL parses as expected, ie check that
+        # the wordpress installation is operational
+        stack_url = self.stack.get_stack_output("URL")
+        print "Got stack output WebsiteURL=%s, verifying" % stack_url
+        ver = verify.VerifyStack()
+        self.assertTrue(ver.verify_wordpress(stack_url))

heat/tests/functional/util.py

@@ -154,6 +154,13 @@ class Instance(object):
     def exec_command(self, cmd):
         return self.ssh.exec_command(cmd)
 
+    def exists(self):
+        servers = self.novaclient.servers.list()
+        for server in servers:
+            if server.name == self.name:
+                return True
+        return False
+
     def file_present(self, path):
         print "Verifying file '%s' exists" % path
         stdin, stdout, sterr = self.ssh.exec_command('ls "%s"' % path)