+$IkiWiki::pagectime{bar}=1154532695; # after
+ok(IkiWiki::pagespec_match("foo", "created_before(bar)"));
+ok(! IkiWiki::pagespec_match("foo", "created_after(bar)"));
+ok(! IkiWiki::pagespec_match("bar", "created_before(foo)"));
+ok(IkiWiki::pagespec_match("bar", "created_after(foo)"));