diff --git a/utils/stream/slice_test.go b/utils/stream/slice_test.go
index 41921c8..83e5cac 100644
--- a/utils/stream/slice_test.go
+++ b/utils/stream/slice_test.go
@@ -5,10 +5,30 @@ import (
 	"testing"
 )
 
-func TestStream_Chunk(t *testing.T) {
+func TestStream(t *testing.T) {
 	var s = stream.Slice[int]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
-	var chunks = s.Chunk(3)
-	for _, chunk := range chunks {
-		t.Log(chunk)
-	}
+	t.Log(s, s.
+		Copy().
+		Shuffle().
+		Filter(true, func(index int, item int) bool {
+			return item%2 == 0
+		}).
+		Zoom(20).
+		Each(true, func(index int, item int) bool {
+			t.Log(index, item)
+			return false
+		}).
+		Chunk(3).
+		EachT(func(index int, item stream.Slice[int]) bool {
+			t.Log(item)
+			return false
+		}).
+		Merge().
+		FillBy(func(index int, value int) int {
+			if value == 0 {
+				return 999
+			}
+			return value
+		}),
+	)
 }