From 0e8563b21673f65a7a5baf2de496fd0b1cb1ec7d Mon Sep 17 00:00:00 2001
From: Kharec <sandro@cazzaniga.fr>
Date: Mon, 8 Dec 2025 22:39:11 +0100
Subject: [PATCH] test: add printing unit test for part two (as it returns
 string)

---
 internal/2016/DayTwo/code_test.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/internal/2016/DayTwo/code_test.go b/internal/2016/DayTwo/code_test.go
index 3b5cbca..3265833 100644
--- a/internal/2016/DayTwo/code_test.go
+++ b/internal/2016/DayTwo/code_test.go
@@ -1,6 +1,9 @@
 package daytwo
 
 import (
+	"bytes"
+	"os"
+	"strings"
 	"testing"
 )
 
@@ -13,3 +16,27 @@ func TestPartOne(t *testing.T) {
 		t.Errorf("PartOne() = %d, want %d", got, expected)
 	}
 }
+
+func TestPartTwo(t *testing.T) {
+	expected := "5DB3"
+
+	oldStdout := os.Stdout
+	r, w, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("Failed to create pipe: %v", err)
+	}
+	os.Stdout = w
+
+	PartTwo(testInput)
+
+	_ = w.Close()
+	os.Stdout = oldStdout
+
+	var buffer bytes.Buffer
+	_, _ = buffer.ReadFrom(r)
+	got := strings.TrimSpace(buffer.String())
+
+	if got != expected {
+		t.Errorf("PartTwo() printed %q, want %q", got, expected)
+	}
+}