Comment 1 for bug 1905651

An alternative is of course to allow g_error to be called.
One might restrict tests to not call it, but it might be impractical to impose that on all code that goes into a test.
One will need to find a way to get glib to not call G_BREAKPOINT for this case.

  if (debugger_present && breakpoint)
    G_BREAKPOINT ();
  else
    g_abort ();

https://gitlab.gnome.org/GNOME/glib/-/blob/master/glib/gmessages.c#L555