Added snapstack test.

Tweaked tox.ini to invoke snapstack, and added test_snapstack.py to
tests dir.

Also added keystone.sh to keystone/tests, as part of the plan to move
those scripts from snap-test to the individual snaps.

Change-Id: Id39209ee1534670506f0d97bb3dcb34a173ebc92

tests/keystone.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -ex
+
+source $BASE_DIR/admin-openrc
+
+while sudo [ ! -d /var/snap/keystone/common/etc/keystone/ ]; do sleep 0.1; done;
+sudo cp -r $BASE_DIR/etc/snap-keystone/* /var/snap/keystone/common/etc/
+
+# Manually define alias if snap isn't installed from snap store.
+# Otherwise, snap store defines this alias automatically.
+snap aliases keystone | grep keystone-manage || sudo snap alias keystone.manage keystone-manage
+
+sudo keystone-manage fernet_setup --keystone-user root --keystone-group root
+sudo keystone-manage db_sync
+
+sudo systemctl restart snap.keystone.*
+
+openstack user show admin || {
+    sudo keystone-manage bootstrap \
+        --bootstrap-password keystone \
+        --bootstrap-admin-url http://localhost:35357/v3/ \
+        --bootstrap-internal-url http://localhost:35357/v3/ \
+        --bootstrap-public-url http://localhost:5000/v3/ \
+        --bootstrap-region-id RegionOne
+}
+
+openstack project show service || {
+    openstack project create --domain default --description "Service Project" service
+}

tests/snapstack_test.py

@@ -0,0 +1,26 @@
+import unittest
+
+from snapstack import Plan, Setup, Step
+
+class SnapstackTest(unittest.TestCase):
+
+    def test_snapstack(self):
+        '''
+        _test_snapstack_
+
+        Run a basic smoke test, utilizing our snapstack testing harness.
+
+        '''
+        # snapstack already installs keystone. Override the 'keystone'
+        # step with a locally built snap. neutron, nova, etc. will still
+        # be installed as normal from the store.
+        setup = Setup()
+        setup.add_steps(('keystone', Step(
+            snap='keystone',
+            script_loc='./tests/',
+            scripts=['keystone.sh'],
+            snap_store=False)))
+
+        # Execute the snapstack tests
+        plan = Plan(base_setup=setup.steps())
+        plan.run()

tox.ini

@@ -5,14 +5,18 @@ skipsdist = True
 [testenv]
 basepython = python3.5
 install_command = pip install {opts} {packages}
-passenv = HOME TERM
+passenv =
+    HOME
+    TERM
+    SNAP_BUILD_PROXY
 whitelist_externals =
     sudo
     snapcraft
 
 [testenv:snap]
-deps = -r{toxinidir}/requirements.txt
+deps =
+    -r{toxinidir}/requirements.txt
+    git+https://github.com/openstack-snaps/snapstack
+    pytest
 commands =
-    sudo snap install core
-    snapcraft clean
-    snapcraft snap
+    py.test -s tests/