[glade] tests: Do not create a file icon when no filename is provided

[Juan Pablo Ugarte <jpu src gnome org>]

commit eb0429d318c017b57b9e59de1d5b3f142a0f455e
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Wed May 19 00:10:29 2021 +0200

    tests: Do not create a file icon when no filename is provided
    
    This would fail otherwise as GFileIcon requires a GFile parameter on
    construction.

 tests/create-widgets.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/tests/create-widgets.c b/tests/create-widgets.c
index 2094059d..db8311f8 100644
--- a/tests/create-widgets.c
+++ b/tests/create-widgets.c
@@ -106,6 +106,8 @@ main (int   argc,
       if (G_TYPE_IS_INSTANTIATABLE (adaptor_type) && !G_TYPE_IS_ABSTRACT (adaptor_type) &&
           /* FIXME: can not create a themed icon without a name */
           !g_type_is_a (adaptor_type, G_TYPE_THEMED_ICON) &&
+          /* FIXME: can not create a file icon without a file name */
+          !g_type_is_a (adaptor_type, G_TYPE_FILE_ICON) &&
           /* FIXME: GtkPopoverMenu gives a few warnings */
           !g_type_is_a (adaptor_type, GTK_TYPE_POPOVER_MENU) &&
           /* FIXME: GtkFileChooserNative is hard to test here */