if match := lsm.Sel.Matches(lsm.Set); match != lsm.Match {
			t.Errorf("%+v.Matches(%#v) => %v, want %v", lsm.Sel, lsm.Set, match, lsm.Match)
		}
	}
}

func TestSetSelectorParser(t *testing.T) {
	setSelectorParserTests := []struct {
		In    string
		Out   Selector
		Match bool
		Valid bool
	}{
		{"", NewSelector(), true, true},
		{"\rx", internalSelector{