Create fixture for keystone auth tests

tests/integration/keystone.py

@@ -0,0 +1,24 @@
+"""Tests for the keystone auth backend."""
+import pytest
+import haas
+import signal
+from os.path import join, dirname
+from subprocess import Popen
+
+
+@pytest.yield_fixture()
+def run_keystone():
+    """Launch keystone for the duration of the test."""
+    script = join(dirname(haas.__file__),
+                  '..',
+                  'ci/keystone/keystone.sh')
+    proc = Popen([script, 'run'])
+    yield
+    proc.terminate()
+    status = proc.wait()
+    assert status == -signal.SIGTERM, \
+        "Keystone exited for some reason other than us stopping it!"
+
+
+def test_dummy(run_keystone):
+    pass