swift - 使用 PACT 的 XCUITest 不返回模拟网络响应

Question

我正在尝试使用 PACT Consumer Swift 运行 XCUITest并且无论我如何尝试配置它，都会发出真实的网络请求，而不是接收带有 200 状态代码和 X-Auth-Token 的模拟响应。我错过了什么？

这是 UI 测试用例:

import XCTest
import PactConsumerSwift
import Nimble

class MyFeature: XCTestCase {

    override func setUp() {
        super.setUp()       
        let app = XCUIApplication()
        app.launchArguments = ["FeatureTest"]
        app.launch()
        Nimble.AsyncDefaults.Timeout = 60
    }

    override func tearDown() {
        super.tearDown()
    }

    func testSuccessfulSignIn() {
        let API = MockService(
            provider: "Sign In API",
            consumer: "Sign In Consumer")

        API
            .given("user signs in with valid credentials")
            .uponReceiving("valid credentials")
            .withRequest(method: .POST,
                path: "/login",
                body: [
                    "username": "john",
                    "password": "1234"
                ])
            .willRespondWith(
                status: 200,
                headers: [
                    "X-Auth-Token":"Super-Cool-Token"
                ])

        API.run { (testComplete) in
            let app = XCUIApplication()

            let usernameField = app.textFields["UsernameField"]
            usernameField.tap()
            usernameField.tap()
            usernameField.typeText("john")

            let passwordField = app.secureTextFields["PasswordField"]
            passwordField.tap()
            passwordField.typeText("1234")

            app.buttons["LOGIN"].tap()

            expect(app.staticTexts["Welcome!"].exists).to(beTrue())

            testComplete()
        }
    }

}

这是实际的登录逻辑:

func attemptLogin(_ user:String? = nil, password:String? = nil) -> Promise<LoginResponse> {
    if let
        baseUrl = URLService.getBaseUrl(),
        let url = URL(string: baseUrl + "login")
    {
        var request = URLRequest(url: url)
        request.httpMethod = "POST"
        request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")

        if 
            let username = encode(string: user),
            let password = encode(string: password)
        {
            request.httpBody = "username=\(username)&password=\(password)".data(using: String.Encoding.utf8)
        }
    }

    // Sends request and does other stuff...
}

Answer 1

实例化 MockServer 类会在后台启动模拟服务器。它运行的 url 将在 MockServer 实例上可用。在您的示例中，这将是 API.baseUrl

您需要将被测应用配置为与此 url 通信(即您希望 URLService.getBaseUrl() 返回模拟服务器的 url)。也许您可以通过启动参数或环境传递 url，例如app.launchArguments = ["FeatureTest", API.baseUrl]