[gnome-settings-daemon] power: Add test for unidle on unplug

[Bastien Nocera <hadess src gnome org>]

commit 98eee8c611b235a05c341973cd445de09b02ba90
Author: Bastien Nocera <hadess hadess net>
Date:   Sun Jan 27 14:45:35 2013 +0100

    power: Add test for unidle on unplug

 plugins/power/test.py |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/plugins/power/test.py b/plugins/power/test.py
index 0f0605b..7eedea8 100755
--- a/plugins/power/test.py
+++ b/plugins/power/test.py
@@ -652,5 +652,15 @@ class PowerPluginTest(gsdtestcase.GSDTestCase):
         # And wait a little more to see us dim again
         self.check_dim(idle_delay + 2)
 
+        # Unplug the AC
+        self.obj_upower.Set('org.freedesktop.UPower', 'OnBattery', True)
+        self.obj_upower.EmitSignal('', 'Changed', '', [], dbus_interface='org.freedesktop.DBus.Mock')
+
+        # Check that we undim
+        self.check_undim(gsdpowerconstants.POWER_UP_TIME_ON_AC / 2)
+
+        # And wait a little more to see us dim again
+        self.check_dim(idle_delay + 2)
+
 # avoid writing to stderr
 unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))