Mocking: Faking Dependencies in Unit Tests
A mock is a stunt double for a real object in your unit tests, letting you control its behavior. Use it to fake dependencies like network clients for fast, predictable tests. The footgun: over-mocking can create tests that pass but miss real integration bugs.
A mock is a stunt double for a real object in your unit tests, giving you full control over its behavior. Instead of making a real network call, your test uses a mock that instantly returns a canned success or error response. This is essential for testing code that interacts with unpredictable network APIs or hardware sensors, making tests fast and reliable. The main footgun is over-mocking, which can hide integration bugs that only appear with the real object.
Read the original → swiftbysundell.com
- #ios
- #swift
- #testing
- #mocking
- #dependency injection
Get five bites like this every day.
Tezvyn delivers a daily feed of 60-second tech bites with quizzes to lock in what you learn.