有没有办法让全班跳过 Swift XCTestCase

Question

在 Swift XCTestCase 中，我正在寻找一种方法：

1. 在设置和拆卸期间运行函数，每个类运行一次，可能会引发错误
2. 如果上述设置抛出错误，则跳过该类中的所有测试函数

我发现跳过测试的一种方法是

throw XCTSkip()

。我可以在测试函数或

func setUpWithError() throws

内执行此操作。但我无法在

class func setUp()

或

class func tearDown()

内部执行此操作。

这是一个例子：

class TestClassOne: XCTestCase {
    override class func setUp() {
        // If this fails, I would like to skip tests 1 and 2 but not 3 and 4
        try settingUpForAllTestsInThisClass() // not allowed: setUp doesn't throw
    }

    override class func tearDown() {
        try tearingDownForAllTestsInThisClass() // not allowed: tearDown doesn't throw
    }

    func test1() {
        // Do something that depends on the one time class setup
    }

    func test2() {
        // Do something that depends on the one time class setup
    }
}

class TestClassTwo: XCTestCase {
    override class func setUp() {
        // If this fails, I would like to skip tests 3 and 4 but not 1 and 2
        try settingUpSomethingElseForAllTestsInThisClass() // not allowed: setUp doesn't throw
    }

    override class func tearDown() {
        try tearingDownSomethingElseForAllTestsInThisClass() // not allowed: tearDown doesn't throw
    }

    func test3() {
        // Do something that depends on the one time class setup
    }

    func test4() {
        // Do something that depends on the one time class setup
    }
}

Answer 1

您可以捕获

class func setUp()

中的错误，并使用结果使

func setUpWithError()

中的测试失败：

class TestClassOne: XCTestCase {
    static var setupFailed = false

    override class func setUp() {
        do {
            try settingUpForAllTestsInThisClass()
        } catch {
            setupFailed = true
        }
    }

    override func setUpWithError() throws {
        if Self.setupFailed {
            XCTFail()
        }
    }
}