Intermediate
JUnit 5 Test with Mockito
Write a JUnit 5 test for a service layer class using Mockito for dependency mocking.
📝 প্রম্পট বিষয়বস্তু
Create a JUnit 5 test class for 'OrderService'. Mock the 'OrderRepository' dependency using Mockito. Verify that the 'createOrder' method saves the order and sends a confirmation email via the 'EmailService'. Include a test case for when the inventory check fails.