feat: generate random string for ID usage

api/app/v1/utils/random.go

@@ -0,0 +1,21 @@
+package utils
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+)
+
+// RandomString generates a random string with p bytes of length.
+// Specifying 10 in the p parameter will result in the length of 20.
+func RandomString(p int) (string, error) {
+	if p <= 0 {
+		p = 10
+	}
+	arr := make([]byte, p)
+	_, err := rand.Read(arr)
+	if err != nil {
+		return "", err
+	}
+
+	return hex.EncodeToString(arr), nil
+}

api/app/v1/utils/random_test.go

@@ -0,0 +1,27 @@
+package utils_test
+
+import (
+	"jokes-bapak2-api/app/v1/utils"
+	"testing"
+)
+
+func TestRandomString(t *testing.T) {
+	t.Run("should create a random string with param", func(t *testing.T) {
+		random, err := utils.RandomString(10)
+		if err != nil {
+			t.Error(err)
+		}
+		if len(random) != 20 {
+			t.Error("result is not within the length of 10")
+		}
+	})
+	t.Run("should create a random string with invalid params", func(t *testing.T) {
+		random, err := utils.RandomString(10)
+		if err != nil {
+			t.Error(err)
+		}
+		if len(random) != 20 {
+			t.Error("result is not within the length of 10")
+		}
+	})
+}