feat: addressing PR comments

Author: MarioAslau

packages/geolocation-controller/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Accept ISO 3166-2 subdivision codes (e.g. `US-NY`, `CA-ON`) from the geolocation API, not just 2-letter country codes ([#8137](https://github.com/MetaMask/core/pull/8137))
+
 ## [0.1.0]
 
 ### Added

packages/geolocation-controller/src/geolocation-api-service/geolocation-api-service.test.ts

@@ -23,7 +23,7 @@ describe('GeolocationApiService', () => {
   });
 
   describe('GeolocationApiService:fetchGeolocation', () => {
-    it('returns the fetched country code', async () => {
+    it('returns the fetched location code', async () => {
       const { rootMessenger } = getService({
         options: { fetch: createMockFetch('GB') },
       });
@@ -264,13 +264,31 @@ describe('GeolocationApiService', () => {
         expect(result).toBe('US-NY');
       });
 
-      it('accepts a subdivision code with alphanumeric part', async () => {
-        const mockFetch = createMockFetch('CA-ON');
+      it('accepts a numeric subdivision code', async () => {
+        const mockFetch = createMockFetch('FR-75');
         const { service } = getService({ options: { fetch: mockFetch } });
 
         const result = await service.fetchGeolocation();
 
-        expect(result).toBe('CA-ON');
+        expect(result).toBe('FR-75');
+      });
+
+      it('accepts a single-character subdivision code', async () => {
+        const mockFetch = createMockFetch('ES-M');
+        const { service } = getService({ options: { fetch: mockFetch } });
+
+        const result = await service.fetchGeolocation();
+
+        expect(result).toBe('ES-M');
+      });
+
+      it('accepts a mixed alphanumeric subdivision code', async () => {
+        const mockFetch = createMockFetch('GB-H9');
+        const { service } = getService({ options: { fetch: mockFetch } });
+
+        const result = await service.fetchGeolocation();
+
+        expect(result).toBe('GB-H9');
       });
 
       it('returns UNKNOWN_LOCATION for non-ISO responses', async () => {