integration test: initial commit of integration test framework

The adds in end-to-end testing of cloud-init. The framework utilizes
LXD and cloud images as a backend to test user-data passed in.
Arbitrary data is then captured from predefined commands specified
by the user. After collection, data verification is completed by
running a series of Python unit tests against the collected data.

Currently only the Ubuntu Trusty, Xenial, Yakkety, and Zesty
releases are supported. Test cases for 50% of the modules is
complete and available.

Additionally a Read the Docs file was created to guide test
writing and execution.

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/cloud_tests/testcases/modules/ntp_servers.py b/tests/cloud_tests/testcases/modules/ntp_servers.py
new file mode 100644
index 00000000..4879bb6f
--- /dev/null
+++ b/tests/cloud_tests/testcases/modules/ntp_servers.py
@@ -0,0 +1,25 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+"""cloud-init Integration Test Verify Script"""
+from tests.cloud_tests.testcases import base
+
+
+class TestNtpServers(base.CloudTestCase):
+    """Test ntp module"""
+
+    def test_ntp_installed(self):
+        """Test ntp installed"""
+        out = self.get_data_file('ntp_installed_servers')
+        self.assertEqual(1, int(out))
+
+    def test_ntp_dist_entries(self):
+        """Test dist config file has one entry"""
+        out = self.get_data_file('ntp_conf_dist_servers')
+        self.assertEqual(1, int(out))
+
+    def test_ntp_entires(self):
+        """Test config entries"""
+        out = self.get_data_file('ntp_conf_servers')
+        self.assertIn('server pool.ntp.org iburst', out)
+
+# vi: ts=4 expandtab