Added snapstack test.

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

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

Change-Id: Ifbd53392c394ee36cf61d1a07dba825f7b7097b8

tests/glance.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+set -ex
+
+source $BASE_DIR/admin-openrc
+
+while sudo [ ! -d /var/snap/glance/common/etc/glance/ ]; do sleep 0.1; done;
+sudo cp -r $BASE_DIR/etc/snap-glance/* /var/snap/glance/common/etc/
+
+openstack user show glance || {
+    openstack user create --domain default --password glance glance
+    openstack role add --project service --user glance admin
+}
+
+openstack service show image || {
+    openstack service create --name glance --description "OpenStack Image" image
+    for endpoint in internal admin public; do
+        openstack endpoint create --region RegionOne \
+            image $endpoint http://localhost:9292 || :
+    done
+}
+
+# Manually define alias if snap isn't installed from snap store.
+# Otherwise, snap store defines this alias automatically.
+snap aliases glance | grep glance-manage || sudo snap alias glance.manage glance-manage
+
+sudo glance-manage db_sync
+
+sudo systemctl restart snap.glance.*
+
+while ! nc -z localhost 9292; do sleep 0.1; done;
+
+openstack image show xenial || {
+    [ -f $HOME/images/xenial-server-cloudimg-amd64-disk1.img ] || {
+        mkdir -p $HOME/images
+        wget http://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img \
+            -O ${HOME}/images/xenial-server-cloudimg-amd64-disk1.img
+    }
+    openstack image create --file ${HOME}/images/xenial-server-cloudimg-amd64-disk1.img \
+        --public --container-format=bare --disk-format=qcow2 xenial
+}

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 glance. Override the 'glance'
+        # step with a locally built snap. neutron, nova, etc. will still
+        # be installed as normal from the store.
+        setup = Setup()
+        setup.add_steps(('glance', Step(
+            snap='glance',
+            script_loc='./tests/',
+            scripts=['glance.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/