Add base class for tests.

tests/base.py

@@ -0,0 +1,27 @@
+import os
+import signal
+import subprocess
+import time
+import unittest
+
+
+class BaseTestCase(unittest.TestCase):
+    def setUp(self):
+        if not all((os.path.exists('gerrit-server-key'),
+                    os.path.exists('gerrit-access-key'))):
+            raise SystemError("No server key-pair or access key-pair found. "
+                              "You'll need to copy them to the current "
+                              "directory under name 'gerrit-server-key' and "
+                              "'gerrit-server-key.pub' for server keyes and "
+                              "'gerrit-access-key' and "
+                              "'gerrit-access-key.pub' for access keyes. "
+                              "Don't forget to run configured Jenkins!")
+        self.process = subprocess.Popen(['ferrit'], preexec_fn=os.setpgrp)
+        # give some time for processes to start, and jenkins to be ready for
+        # consume the data
+        time.sleep(3)
+
+    def tearDown(self):
+        os.killpg(self.process.pid, signal.SIGTERM)
+        os.unlink('ferrit-http.log')
+        os.unlink('ferrit-ssh.log')