swift-testing

Test Swift applications - XCTest, Swift Testing, UI tests, mocking, TDD, CI/CD

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저장소: pluginagentmarketplace/custom-plugin-swift
최근 소스 활동: 2025년 12월 30일 11:46
감지된 SKILL.md 언어: 영어
스타: 9
포크: 0

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Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.

직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.

npx skills add https://github.com/pluginagentmarketplace/custom-plugin-swift --skill swift-testing

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SKILL.md

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import Testing
@testable import MyApp

@Suite("ShoppingCart Tests")
struct ShoppingCartTests {
    var cart: ShoppingCart
    var mockRepository: MockProductRepository

    init() {
        mockRepository = MockProductRepository()
        cart = ShoppingCart(repository: mockRepository)
    }

    @Test("adding product increases count")
    func addProduct() async throws {
        let product = Product(id: "1", name: "Widget", price: 9.99)

        cart.add(product)

        #expect(cart.items.count == 1)
        #expect(cart.items.first?.product == product)
    }

    @Test("adding same product increases quantity")
    func addSameProductTwice() {
        let product = Product(id: "1", name: "Widget", price: 9.99)

        cart.add(product)
        cart.add(product)

        #expect(cart.items.count == 1)
        #expect(cart.items.first?.quantity == 2)
    }

    @Test("total calculates correctly")
    func calculateTotal() {
        cart.add(Product(id: "1", name: "A", price: 10.00))
        cart.add(Product(id: "2", name: "B", price: 20.00))

        #expect(cart.total == 30.00)
    }

    @Test("checkout requires non-empty cart", .tags(.checkout))
    func checkoutEmptyCart() async {
        await #expect(throws: CartError.empty) {
            try await cart.checkout()
        }
    }

    @Test("checkout with valid cart", .tags(.checkout))
    func checkoutSuccess() async throws {
        cart.add(Product(id: "1", name: "Widget", price: 9.99))
        mockRepository.checkoutResult = .success(Order(id: "order-1"))

        let order = try await cart.checkout()

        #expect(order.id == "order-1")
        #expect(cart.items.isEmpty)
    }

    @Test(arguments: [0, 1, 5, 10])
    func discountTiers(quantity: Int) {
        let discount = cart.calculateDiscount(forQuantity: quantity)

        switch quantity {
        case 0..<5: #expect(discount == 0)
        case 5..<10: #expect(discount == 0.05)
        default: #expect(discount == 0.10)
        }
    }
}

import XCTest
@testable import MyApp

final class ProductServiceTests: XCTestCase {
    var sut: ProductService!
    var mockAPI: MockAPIClient!

    override func setUp() {
        super.setUp()
        mockAPI = MockAPIClient()
        sut = ProductService(api: mockAPI)
    }

    override func tearDown() {
        sut = nil
        mockAPI = nil
        super.tearDown()
    }

    func test_fetchProducts_success() async throws {
        // Arrange
        let expectedProducts = [Product(id: "1", name: "Test", price: 9.99)]
        mockAPI.productsResult = .success(expectedProducts)

        // Act
        let products = try await sut.fetchProducts()

        // Assert
        XCTAssertEqual(products, expectedProducts)
        XCTAssertTrue(mockAPI.fetchProductsCalled)
    }

    func test_fetchProducts_networkError_throws() async {
        // Arrange
        mockAPI.productsResult = .failure(NetworkError.noConnection)

        // Act & Assert
        do {
            _ = try await sut.fetchProducts()
            XCTFail("Expected error to be thrown")
        } catch {
            XCTAssertTrue(error is NetworkError)
        }
    }

    func test_fetchProducts_retries_onTransientError() async throws {
        // Arrange
        var attempts = 0
        mockAPI.onFetchProducts = {
            attempts += 1
            if attempts < 3 {
                throw NetworkError.timeout
            }
            return [Product(id: "1", name: "Test", price: 9.99)]
        }

        // Act
        _ = try await sut.fetchProductsWithRetry(maxAttempts: 3)

        // Assert
        XCTAssertEqual(attempts, 3)
    }
}

// Protocol for abstraction
protocol APIClientProtocol {
    func fetchProducts() async throws -> [Product]
    func createOrder(_ order: CreateOrderRequest) async throws -> Order
}

// Production implementation
final class APIClient: APIClientProtocol {
    func fetchProducts() async throws -> [Product] {
        // Real implementation
    }

    func createOrder(_ order: CreateOrderRequest) async throws -> Order {
        // Real implementation
    }
}

// Test mock
final class MockAPIClient: APIClientProtocol {
    var productsResult: Result<[Product], Error> = .success([])
    var orderResult: Result<Order, Error> = .success(Order(id: "mock"))

    var fetchProductsCalled = false
    var fetchProductsCallCount = 0
    var createOrderCalled = false
    var lastOrderRequest: CreateOrderRequest?

    var onFetchProducts: (() async throws -> [Product])?

    func fetchProducts() async throws -> [Product] {
        fetchProductsCalled = true
        fetchProductsCallCount += 1

        if let handler = onFetchProducts {
            return try await handler()
        }

        return try productsResult.get()
    }

    func createOrder(_ order: CreateOrderRequest) async throws -> Order {
        createOrderCalled = true
        lastOrderRequest = order
        return try orderResult.get()
    }

    func reset() {
        productsResult = .success([])
        orderResult = .success(Order(id: "mock"))
        fetchProductsCalled = false
        fetchProductsCallCount = 0
        createOrderCalled = false
        lastOrderRequest = nil
        onFetchProducts = nil
    }
}

import XCTest

// Page Object
struct LoginPage {
    let app: XCUIApplication

    var usernameField: XCUIElement {
        app.textFields["username"]
    }

    var passwordField: XCUIElement {
        app.secureTextFields["password"]
    }

    var loginButton: XCUIElement {
        app.buttons["login"]
    }

    var errorMessage: XCUIElement {
        app.staticTexts["errorMessage"]
    }

    func login(username: String, password: String) {
        usernameField.tap()
        usernameField.typeText(username)

        passwordField.tap()
        passwordField.typeText(password)

        loginButton.tap()
    }

    func waitForLogin(timeout: TimeInterval = 5) -> Bool {
        !usernameField.waitForExistence(timeout: timeout)
    }
}

// UI Test
final class LoginUITests: XCTestCase {
    var app: XCUIApplication!
    var loginPage: LoginPage!

    override func setUp() {
        super.setUp()
        continueAfterFailure = false

        app = XCUIApplication()
        app.launchArguments = ["--uitesting", "--reset-state"]
        app.launch()

        loginPage = LoginPage(app: app)
    }

    func test_login_withValidCredentials_navigatesToHome() {
        loginPage.login(username: "testuser", password: "password123")

        XCTAssertTrue(loginPage.waitForLogin())
        XCTAssertTrue(app.tabBars["mainTabBar"].exists)
    }

    func test_login_withInvalidCredentials_showsError() {
        loginPage.login(username: "wrong", password: "wrong")

        XCTAssertTrue(loginPage.errorMessage.waitForExistence(timeout: 5))
        XCTAssertEqual(loginPage.errorMessage.label, "Invalid credentials")
    }
}

name: Tests

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

jobs:
  test:
    runs-on: macos-14
    steps:
      - uses: actions/checkout@v4

      - name: Select Xcode
        run: sudo xcode-select -s /Applications/Xcode_15.2.app

      - name: Build and Test
        run: |
          xcodebuild test \
            -scheme MyApp \
            -destination 'platform=iOS Simulator,name=iPhone 15,OS=17.2' \
            -resultBundlePath TestResults.xcresult \
            -enableCodeCoverage YES \
            CODE_SIGNING_ALLOWED=NO

      - name: Upload Results
        uses: actions/upload-artifact@v3
        if: failure()
        with:
          name: test-results
          path: TestResults.xcresult

      - name: Coverage Report
        run: |
          xcrun xccov view --report TestResults.xcresult

Issue	Cause	Solution
Flaky tests	Shared state	Add setUp/tearDown cleanup
Async timeout	Missing fulfillment	Call fulfill() or increase timeout
UI element not found	Wrong identifier	Check accessibilityIdentifier
Mock not working	Wrong initialization	Verify dependency injection
Coverage low	Untested paths	Add edge case tests

// Print XCUIElement hierarchy
print(app.debugDescription)

// Wait for condition
let exists = element.waitForExistence(timeout: 5)

// Take screenshot on failure
let screenshot = XCUIScreen.main.screenshot()
let attachment = XCTAttachment(screenshot: screenshot)
attachment.lifetime = .keepAlways
add(attachment)

validation:
  - rule: test_naming
    severity: info
    check: Use descriptive test names (test_method_condition_result)
  - rule: one_assertion
    severity: info
    check: Prefer one logical assertion per test
  - rule: no_test_interdependence
    severity: error
    check: Tests must not depend on each other

Skill("swift-testing")

name	swift-testing
description	Test Swift applications - XCTest, Swift Testing, UI tests, mocking, TDD, CI/CD
version	2.0.0
sasmp_version	1.3.0
bonded_agent	06-swift-testing
bond_type	PRIMARY_BOND

name	swift-testing
description	Test Swift applications - XCTest, Swift Testing, UI tests, mocking, TDD, CI/CD
version	2.0.0
sasmp_version	1.3.0
bonded_agent	06-swift-testing
bond_type	PRIMARY_BOND

Framework	Min Version	Key Features
XCTest	iOS 2.0+	XCTestCase, expectations
Swift Testing	iOS 17+ / Swift 5.9+	@Test, #expect, traits

Type	Scope	Speed
Unit	Single function/class	Fastest
Integration	Multiple components	Medium
UI	Full user flows	Slowest
Snapshot	Visual regression	Medium

Pattern	Purpose
AAA	Arrange, Act, Assert
Given-When-Then	BDD style
Test Doubles	Mock, Stub, Spy, Fake

swift-testing

설치 방법

소스 파일 검토

Swift Testing Skill

Prerequisites

Parameters

Swift Testing Skill

Prerequisites

Parameters

Topics Covered

Test Frameworks

Test Types

Testing Patterns

Code Examples

Swift Testing (iOS 17+ / Swift 5.9+)

XCTest with Async

Mock Implementation

UI Testing with Page Object Pattern

GitHub Actions CI

Troubleshooting

Common Issues

Debug Tips

Validation Rules

Usage

Related Skills

swift-testing

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이 저장소의 다른 Skills

이 저장소의 다른 Skills

Swift Testing Skill

Prerequisites

Parameters

Swift Testing Skill

Prerequisites

Parameters

Topics Covered

Test Frameworks

Test Types

Testing Patterns

Code Examples

Swift Testing (iOS 17+ / Swift 5.9+)

XCTest with Async

Mock Implementation

UI Testing with Page Object Pattern

GitHub Actions CI

Troubleshooting

Common Issues

Debug Tips

Validation Rules

Usage

Related Skills