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/validators/valnum.cpp

@@ -204,11 +204,13 @@ void NumValidatorTestCase::NoTrailingZeroes()
 
 void NumValidatorTestCase::Interactive()
 {
+#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__
 
     // Set a locale using comma as thousands separator character.
     wxLocale loc(wxLANGUAGE_ENGLISH_UK, wxLOCALE_DONT_LOAD_DEFAULT);