+$ret=pagespec_match("bar", "link(quux) and created_after(foo)");
+is(join(",", sort $ret->influences), 'foo,quux', "influences add up over AND");
+$ret=pagespec_match("bar", "link(quux) and created_after(foo)");
+is(join(",", sort $ret->influences), 'foo,quux', "influences add up over OR");
+$ret=pagespec_match("bar", "!link(quux) and !created_after(foo)");
+is(join(",", sort $ret->influences), 'foo,quux', "influences unaffected by negation");