Question 1

How to stub network responses with SBTUITestTunnel?

Accepted Answer

Use the network stubbing feature by defining response blocks in your test code; it intercepts HTTP requests and returns mocked data, allowing simulation of server errors or slow responses without actual network calls. Refer to the Usage documentation for code examples.

Question 2

SBTUITestTunnel vs EarlGrey: which is better for iOS UI testing?

Accepted Answer

SBTUITestTunnel extends XCTest, so it's ideal if you're already using Apple's framework and need dynamic features. EarlGrey is a separate framework with built-in synchronization and might suit teams wanting a Google-developed solution, but SBTUITestTunnel offers more fine-grained control over network and app state.

Question 3

Does this library work with SwiftUI or only UIKit?

Accepted Answer

It works with both, as it operates at the XCTest level with XCUIApplication, which interacts with any UI element accessible via the testing hierarchy. However, ensure your SwiftUI views are properly exposed for testing.

Question 4

Can I use SBTUITestTunnel with Xcode cloud or fastlane?

Accepted Answer

Yes, it integrates with standard Xcode test runners, so it's compatible with CI/CD tools like Xcode Cloud, fastlane, or Jenkins. The concurrent testing feature helps optimize parallel execution in these environments.

Question 5

How to handle flaky tests when using network stubbing?

Accepted Answer

Leverage the network monitoring and rewriting features to validate request/response patterns and ensure stubs are correctly applied. Also, use custom code execution to reset app state between tests for more reliability.

Question 6

What's the performance impact on test execution speed?

Accepted Answer

There's a slight overhead due to the IPC tunnel between test and app processes, especially with heavy network stubbing or monitoring. But for most cases, the trade-off is minimal compared to the increased test flexibility and robustness.

SBTUITestTunnel

What is SBTUITestTunnel?

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