Rework project's structure

internal/utils/queue_test.go

@@ -0,0 +1,38 @@
+package utils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestQueue(t *testing.T) {
+	t.Run("Enqueue", func(t *testing.T) {
+		s := NewQueue[string]()
+		require.Equal(t, 1, s.Enqueue("username1"))
+		require.Equal(t, 2, s.Enqueue("username2"))
+		require.Equal(t, 3, s.Enqueue("username3"))
+	})
+
+	t.Run("Dequeue", func(t *testing.T) {
+		s := NewQueue[string]()
+		s.Enqueue("username1")
+		s.Enqueue("username2")
+		s.Enqueue("username3")
+		s.Enqueue("username4")
+		s.Enqueue("username5")
+
+		items, queueLen := s.Dequeue(2)
+		require.Len(t, items, 2)
+		require.Equal(t, 3, queueLen)
+		require.Equal(t, "username1", items[0])
+		require.Equal(t, "username2", items[1])
+
+		items, queueLen = s.Dequeue(40)
+		require.Len(t, items, 3)
+		require.Equal(t, 0, queueLen)
+		require.Equal(t, "username3", items[0])
+		require.Equal(t, "username4", items[1])
+		require.Equal(t, "username5", items[2])
+	})
+}