What are mocking and stubbing techniques for WKWebView in Swift?

Mocking and stubbing techniques are essential for testing WKWebView in Swift applications. These techniques allow developers to simulate interactions with the web view without requiring actual network calls, which can lead to faster, more reliable tests.

Mocking is when you create a simulated object that mimics the behavior of a real object. Stubbing, on the other hand, involves creating a method that returns fixed data or responses instead of executing its original logic.

Example of Mocking and Stubbing WKWebView


        // Create a mock WKWebView
        class MockWKWebView: WKWebView {
            var loadingURL: URL?
            var didFinishLoad: (() -> Void)?

            override func load(_ request: URLRequest) -> WKNavigation? {
                self.loadingURL = request.url
                self.didFinishLoad?()
                return nil
            }
        }

        // Unit test using the mock
        func testWebViewLoading() {
            let mockWebView = MockWKWebView()
            var loadedURL: URL?

            mockWebView.didFinishLoad = {
                loadedURL = mockWebView.loadingURL
            }

            let url = URL(string: "https://example.com")!
            let request = URLRequest(url: url)
            mockWebView.load(request)

            assert(loadedURL == url) // Verifying that the correct URL was loaded
        }

What are mocking and stubbing techniques for WKWebView in Swift?

Example of Mocking and Stubbing WKWebView

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What are mocking and stubbing techniques for WKWebView in Swift?

Example of Mocking and Stubbing WKWebView

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