From 3a0808c599ef63c7305a9481432c6cba2020aaa4 Mon Sep 17 00:00:00 2001
From: vinchent <vinchent@vinchent.xyz>
Date: Sun, 22 Sep 2024 20:57:12 +0200
Subject: [PATCH] roman: add 4

---
 roman/roman.go      | 3 +++
 roman/roman_test.go | 1 +
 2 files changed, 4 insertions(+)

diff --git a/roman/roman.go b/roman/roman.go
index df276f0..7f0acd4 100644
--- a/roman/roman.go
+++ b/roman/roman.go
@@ -9,5 +9,8 @@ func ConvertToRoman(arabic int) string {
 			converted.WriteString("I")
 		}
 	}
+	if arabic == 4 {
+		return "IV"
+	}
 	return converted.String()
 }
diff --git a/roman/roman_test.go b/roman/roman_test.go
index 0b445d6..a2d0b9d 100644
--- a/roman/roman_test.go
+++ b/roman/roman_test.go
@@ -11,6 +11,7 @@ func TestRomanNemerals(t *testing.T) {
 		{"1 gets converted to I", 1, "I"},
 		{"2 gets converted to II", 2, "II"},
 		{"3 gets converted to III", 3, "III"},
+		{"4 gets converted to IV", 4, "IV"},
 	}
 	for _, test := range cases {
 		t.Run(test.Description, func(t *testing.T) {