From ece2a85e6f9a46112a30e3205ac6f8eae1747e5d Mon Sep 17 00:00:00 2001
From: Henrique Volponi <141272629+Henrique-volponi@users.noreply.github.com>
Date: Tue, 17 Mar 2026 20:22:03 -0300
Subject: [PATCH 1/2] =?UTF-8?q?=F0=9F=90=9B=20update=20Mercosul=20regex=20?=
 =?UTF-8?q?to=20support=20additional=20format?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/is-valid-license-plate/is-valid-license-plate.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/is-valid-license-plate/is-valid-license-plate.ts b/src/is-valid-license-plate/is-valid-license-plate.ts
index 80334f9..bdb77bc 100644
--- a/src/is-valid-license-plate/is-valid-license-plate.ts
+++ b/src/is-valid-license-plate/is-valid-license-plate.ts
@@ -1,4 +1,4 @@
-const mercosulRegex = /^[a-z]{3}[0-9]{1}[a-z]{1}[0-9]{2}$/i;
+const mercosulRegex = /^[a-z]{3}[0-9]{1}[a-z]{1}[0-9]{2}$|^[a-z]{3}[0-9]{2}[a-z]{1}[0-9]{1}$/i;
 
 const brazilianLicensePlateRegex = /^[a-z]{3}-?[0-9]{4}$/i;
 

From 19c9f8adaa13f09e8acb776b1a7ff825be0be024 Mon Sep 17 00:00:00 2001
From: Henrique Volponi <141272629+Henrique-volponi@users.noreply.github.com>
Date: Tue, 17 Mar 2026 20:22:37 -0300
Subject: [PATCH 2/2] =?UTF-8?q?=E2=9C=85=20Adicione=20suporte=20para=20for?=
 =?UTF-8?q?matos=20de=20placas=20de=20moto=20Mercosul=20nos=20testes?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../is-valid-license-plate.test.ts            | 27 +++++++++++--------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/src/is-valid-license-plate/is-valid-license-plate.test.ts b/src/is-valid-license-plate/is-valid-license-plate.test.ts
index aaf43cb..dbed518 100644
--- a/src/is-valid-license-plate/is-valid-license-plate.test.ts
+++ b/src/is-valid-license-plate/is-valid-license-plate.test.ts
@@ -42,17 +42,22 @@ describe("isValidLicensePlate", () => {
 		});
 	});
 
-	describe("should return true", () => {
-		it("when brazilian license plate format is valid", () => {
-			expect(isValidLicensePlate("abc1234")).toBe(true);
-			expect(isValidLicensePlate("ABC1234")).toBe(true);
-			expect(isValidLicensePlate("abc-1234")).toBe(true);
-			expect(isValidLicensePlate("ABC-1234")).toBe(true);
-		});
-
-		it("when mercosul license plate format is valid", () => {
-			expect(isValidLicensePlate("abc1d23")).toBe(true);
-			expect(isValidLicensePlate("ABC1D23")).toBe(true);
+  describe("should return true", () => {
+    it("when brazilian license plate format is valid", () => {
+      expect(isValidLicensePlate("abc1234")).toBe(true);
+      expect(isValidLicensePlate("ABC1234")).toBe(true);
+      expect(isValidLicensePlate("abc-1234")).toBe(true);
+      expect(isValidLicensePlate("ABC-1234")).toBe(true);
+    });
+
+    it("when mercosul license plate format is valid", () => {
+      // Placas de Carro Mercosul (Letra na 5ª posição)
+      expect(isValidLicensePlate("abc1d23")).toBe(true);
+      expect(isValidLicensePlate("ABC1D23")).toBe(true);
+      
+      // Placas de Moto Mercosul (Letra na 6ª posição) - ADICIONE ESTAS LINHAS:
+      expect(isValidLicensePlate("ABC12D3")).toBe(true);
+      expect(isValidLicensePlate("abc12d3")).toBe(true);
 		});
 	});
 });