PHPUnit: Integration Testing with Live Services

We're back! In episode 1, we walked through the beauty & purity unit testing. But now, we're onto the messier, but super-useful world of integration testing:

• Integration testing? What is that? When do I need that?
• Accessing services from the container
• Clearing the database between tests
• Seeding the database
• Foundry Factories & more!
• Partial Mocking: mock just some dependencies
• Testing emails
• Testing messenger messages

Integration tests are fun and are a critical tool to a well-rounded test suite. Let's go!

• Hello Integration Tests!
• KernelTestCase: Fetching Services
• Test Environment Database Setup
• Resetting the Database
• Factory Data Seeding
• Testing a Service
• Partial Mocking
• The Repository Test Helper
• Testing Emails
• Testing Messenger