[gnome-boxes] tests: Add libvirt_domain_get_install_state()

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit d12afb04537cbb611ad46bfaa2c7b4351830e5f4
Author: Vladimir Benes <benesv email cz>
Date:   Wed Jun 10 13:23:29 2015 +0200

    tests: Add libvirt_domain_get_install_state()
    
    This function can be used for VM state checking from libvirt. It
    can say whether system is installing or installed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=748006

 tests/steps/express-install.py |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
---
diff --git a/tests/steps/express-install.py b/tests/steps/express-install.py
new file mode 100644
index 0000000..2b135d5
--- /dev/null
+++ b/tests/steps/express-install.py
@@ -0,0 +1,23 @@
+#!/usr/bin/python
+
+from __future__ import unicode_literals
+import libvirt
+from general import libvirt_domain_get_val, libvirt_domain_get_context
+
+def libvirt_domain_get_install_state(title):
+    state = None
+
+    conn = libvirt.openReadOnly(None)
+    doms = conn.listAllDomains()
+    for dom in doms:
+        try:
+            dom0 = conn.lookupByName(dom.name())
+            # Annoyiingly, libvirt prints its own error message here
+        except libvirt.libvirtError:
+            print("Domain %s is not running" % name)
+        ctx = libvirt_domain_get_context(dom0)
+
+        if libvirt_domain_get_val(ctx, "/domain/title") == title:
+            return libvirt_domain_get_val(ctx, "/domain/metadata/*/os-state")
+
+    return None