generics

test_stringset.go

func TestSet(t *testing.T) {
	set := NewSet()
	set.Add("the")
	set.Add("quick")
	set.Add("brown")
	set.Add("fox")
	set.Add("the")

	if !set.Has("quick") {
		t.Error("set doesn't have quick")
	}
	list := set.List()
	sort.Slice(list, func(i, j int) bool {
		return strings.Compare(list[i], list[j]) == -1
	})
	if !reflect.DeepEqual(list, []string{"brown", "fox", "quick", "the"}) {
		t.Error(list)
	}
}