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, 21 insertions, 0 deletions

diff --git a/tests/cloud_tests/testcases/main/command_output_simple.py b/tests/cloud_tests/testcases/main/command_output_simple.py
new file mode 100644
index 00000000..c0461a08
--- /dev/null
+++ b/tests/cloud_tests/testcases/main/command_output_simple.py
@@ -0,0 +1,21 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+from tests.cloud_tests.testcases import base
+
+
+class TestCommandOutputSimple(base.CloudTestCase):
+    """
+    test functionality of simple output redirection
+    """
+
+    def test_output_file(self):
+        """
+        ensure that the output file is not empty and has all stages
+        """
+        data = self.get_data_file('cloud-init-test-output')
+        self.assertNotEqual(len(data), 0, "specified log empty")
+        self.assertEqual(self.get_config_entry('final_message'),
+                         data.splitlines()[-1].strip())
+        # TODO: need to test that all stages redirected here
+
+# vi: ts=4 expandtab