diff --git a/test/services/NotificationServiceTests.test.ts b/test/services/NotificationServiceTests.test.ts
index 980b0f7..f2a5dbc 100644
--- a/test/services/NotificationServiceTests.test.ts
+++ b/test/services/NotificationServiceTests.test.ts
@@ -178,6 +178,29 @@ describe("NotificationService", () => {
     });
   });
 
+  describe('getAPNsFullUrlToUse', () => {
+    it('should return the production URL when NODE_ENV is set to "production"', () => {
+      process.env.NODE_ENV = 'production';
+      const deviceId = 'testDeviceId';
+      const result = NotificationService.getAPNsFullUrlToUse(deviceId);
+      expect(result).toBe(`https://api.push.apple.com/3/device/${deviceId}`);
+    });
+
+    it('should return the sandbox URL when NODE_ENV is not set to "production"', () => {
+      process.env.NODE_ENV = 'development';
+      const deviceId = 'testDeviceId';
+      const result = NotificationService.getAPNsFullUrlToUse(deviceId);
+      expect(result).toBe(`https://api.sandbox.push.apple.com/3/device/${deviceId}`);
+    });
+
+    it('should append the correct device ID to the URL', () => {
+      process.env.NODE_ENV = 'production';
+      const deviceId = 'device123';
+      const result = NotificationService.getAPNsFullUrlToUse(deviceId);
+      expect(result).toBe(`https://api.push.apple.com/3/device/${deviceId}`);
+    });
+  });
+
   describe("cancelNotification", () => {
     it("stops notification from sending to given shuttle/stop ID", async () => {