Add IsAutomaticTest() function to the unit tests.

This allows to easily test if we're running on a buildbot slave and disable
some difficult to debug test failures there.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/controls/listbasetest.cpp

@@ -181,11 +181,13 @@ void ListBaseTestCase::ItemClick()
     //        generic wxListCtrl implementation.
 #if wxUSE_UIACTIONSIMULATOR && !defined(__WXGTK__)
 
+#ifdef __WXMSW__
     // FIXME: This test fails on MSW buildbot slaves although works fine on
     //        development machine, no idea why. It seems to be a problem with
     //        wxUIActionSimulator rather the wxListCtrl control itself however.
-    if ( wxGetUserId().Lower().Matches("buildslave*") )
+    if ( IsAutomaticTest() )
         return;
+#endif // __WXMSW__
 
     wxListCtrl* const list = GetList();