New tests: GTK3 platform accessibility

[Stephan Bergmann]

On 9/12/23 09:49, Colomban Wendling wrote:
> However, IIUC you suggest it might be a dbus/dbus-borken conflict 
> somehow?  What if we try `dbus-broker-launch` (assuming it's compatible) 
> instead of `dbus-launch` if the former is available?  Would that help?

Doesn't appear to be compatible at all.  With

> --- a/vcl/CppunitTest_vcl_gtk3_a11y.mk
> +++ b/vcl/CppunitTest_vcl_gtk3_a11y.mk
> @@ -13,7 +13,7 @@ $(call gb_CppunitTest_get_target,vcl_gtk3_a11y) : gb_TEST_ENV_VARS += SAL_USE_VC
>  $(call gb_CppunitTest_get_target,vcl_gtk3_a11y) : gb_TEST_ENV_VARS += GDK_BACKEND=x11
>  ifeq (,$(VCL_GTK3_TESTS_NO_XVFB))
>  $(call gb_CppunitTest_get_target,vcl_gtk3_a11y) : \
> -       ICECREAM_RUN += $(XVFB_RUN) $(DBUS_LAUNCH) --exit-with-session
> +       ICECREAM_RUN += $(XVFB_RUN) /usr/bin/dbus-broker-launch --exit-with-session
>  endif
>  
>  $(eval $(call gb_CppunitTest_CppunitTest,vcl_gtk3_a11y))

CppunitTest_vcl_gtk3_a11y trivially fails with

> /usr/bin/dbus-broker-launch: unrecognized option '--exit-with-session'