From 414f419c1481afb9e8fabfa9e315691056568b84 Mon Sep 17 00:00:00 2001
From: Kharec <sandro@cazzaniga.fr>
Date: Mon, 22 Dec 2025 10:03:50 +0100
Subject: [PATCH] test: add unit test for part two

---
 internal/2017/DayOne/code_test.go | 43 +++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/internal/2017/DayOne/code_test.go b/internal/2017/DayOne/code_test.go
index 1140d4d..a2360fc 100644
--- a/internal/2017/DayOne/code_test.go
+++ b/internal/2017/DayOne/code_test.go
@@ -39,3 +39,46 @@ func TestPartOne(t *testing.T) {
 		})
 	}
 }
+
+func TestPartTwo(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    []int
+		expected int
+	}{
+		{
+			name:     "1212 produces 6",
+			input:    []int{1, 2, 1, 2},
+			expected: 6,
+		},
+		{
+			name:     "1221 produces 0",
+			input:    []int{1, 2, 2, 1},
+			expected: 0,
+		},
+		{
+			name:     "123425 produces 4",
+			input:    []int{1, 2, 3, 4, 2, 5},
+			expected: 4,
+		},
+		{
+			name:     "123123 produces 12",
+			input:    []int{1, 2, 3, 1, 2, 3},
+			expected: 12,
+		},
+		{
+			name:     "12131415 produces 4",
+			input:    []int{1, 2, 1, 3, 1, 4, 1, 5},
+			expected: 4,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := PartTwo(tt.input)
+			if got != tt.expected {
+				t.Errorf("PartTwo() = %d, want %d", got, tt.expected)
+			}
+		})
+	}
+}