Added snapstack test.

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

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

Change-Id: I2e0363d361893a899b6cd4e4683e6d14bac1a0ed

tests/nova-hypervisor.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+set -ex
+
+source $BASE_DIR/admin-openrc
+
+# Manually connect interfaces if snap isn't installed from snap store.
+# Otherwise, snap store automatically connects these interfaces.
+interfaces=( firewall-control hardware-observe libvirt network-control
+             network-observe openvswitch process-control system-observe )
+for interface in "${interfaces[@]}"; do
+    snap interfaces -i ${interface} nova-hypervisor | grep nova-hypervisor:${interface} && \
+    sudo snap connect nova-hypervisor:${interface} core:${interface}
+done
+
+while sudo [ ! -d /var/snap/nova-hypervisor/common/etc/neutron/ ]; do sleep 0.1; done;
+while sudo [ ! -d /var/snap/nova-hypervisor/common/etc/nova/ ]; do sleep 0.1; done;
+sudo cp -r $BASE_DIR/etc/snap-nova-hypervisor/* /var/snap/nova-hypervisor/common/etc/
+
+sudo systemctl restart snap.nova-hypervisor.*
+sudo systemctl restart snap.nova-hypervisor.nova-compute
+
+# Manually define alias if snap isn't installed from snap store.
+# Otherwise, snap store defines this alias automatically.
+snap aliases nova | grep nova-manage || sudo snap alias nova.manage nova-manage
+
+sudo nova-manage cell_v2 discover_hosts --verbose

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 nova-hypervisor. Override the
+        # 'nova-hypervisor' step with a locally built snap. neutron,
+        # keystone, etc. will still be installed as normal from the store.
+        setup = Setup()
+        setup.add_steps(('nova_hypervisor', Step(
+            snap='nova-hypervisor',
+            script_loc='./tests/',
+            scripts=['nova-hypervisor.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
+    py.test -s tests/
-    snapcraft clean
-    snapcraft snap