Question 1

How do I stub a network request with OHHTTPStubs in Swift?

Accepted Answer

Use the stub function with conditions like isHost. For example, stub(isHost('api.example.com')) { _ in return fixture(filePath: 'response.json') }. The README provides Swift examples in the 'Basic example' section, and you can compose matchers for complex conditions.

Question 2

Can OHHTTPStubs mock WebSocket connections?

Accepted Answer

No, OHHTTPStubs is designed for HTTP/HTTPS requests via the URL Loading System and does not support WebSocket or other non-HTTP protocols. It's limited to stubbing network calls that use NSURLConnection, NSURLSession, or similar frameworks.

Question 3

OHHTTPStubs vs Mocker: which is better for iOS testing?

Accepted Answer

OHHTTPStubs has broader framework compatibility and supports multiple stub formats, making it versatile for mixed Objective-C/Swift projects. Mocker is Swift-only and may be simpler for Swift-centric apps. Choose based on your language needs and stubbing complexity.

Question 4

How to simulate a slow network connection with OHHTTPStubs?

Accepted Answer

Use the responseTime parameter in HTTPStubsResponse to add delay. For instance, return HTTPStubsResponse(responseTime: 2.0) to simulate a 2-second latency. The wiki provides examples for controlling response times to mimic bad network conditions.

Question 5

Does OHHTTPStubs work with Alamofire 5?

Accepted Answer

Yes, since Alamofire 5 uses URLSession under the hood, OHHTTPStubs is compatible as it hooks into Cocoa's URL Loading System. The README confirms compatibility with Alamofire and other similar frameworks.

Question 6

Why are my stubs not being removed after tests in OHHTTPStubs?

Accepted Answer

You need to call HTTPStubs.removeAllStubs() in your test's tearDown method to clean up stubs between test cases. The README's 'Special Considerations' section emphasizes this to avoid interference in subsequent tests.

OHHTTPStubs

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