Bug#940594: Tests fail when applying new upstream commit

[Gunnar Hjalmarsson <gunnarhj@ubuntu.com>]

I think I sorted it out. While some of the tests interact with $HOME, 
the sbuild user when autobuilding does not have a real $HOME, but just 
"/sbuild-nonexistent". So I changed debian/rules as shown in the 
attached diff. Besides fixing my problem, it allowed me to also enable 
the ibus-bus test.

I don't know if that is the correct/best way to deal with it, but it 
seems to work:

https://launchpad.net/~gunnarhj/+archive/ubuntu/ibus-test2/+packages

I suppose this is worth considering for Debian as well.

--
Gunnar Hjalmarsson
https://launchpad.net/~gunnarhj

--- ibus-1.5.21/debian/rules
+++ ibus-1.5.21/debian/rules
@@ -62,4 +62,5 @@
 	dh_makeshlibs -Nibus-gtk -Nibus-gtk3 -- -c4
 
 override_dh_auto_test:
-	dh_auto_test -- DISABLE_GUI_TESTS="ibus-bus ibus-compose ibus-keypress test-stress"
+	mkdir -p /tmp/test-home/.cache
+	dh_auto_test -- DISABLE_GUI_TESTS="ibus-compose ibus-keypress test-stress" HOME=/tmp/test-home