如何从另一个Swift文件导入Swift文件?

I simply want to include my Swift class from another file, like its test

我只想从另一个文件中包含Swift类，比如它的测试

PrimeNumberModel.swift

PrimeNumberModel.swift

import Foundation

class PrimeNumberModel { }

PrimeNumberModelTests.swift

PrimeNumberModelTests.swift

import XCTest
import PrimeNumberModel  // gives me "No such module 'PrimeNumberModel'"

class PrimeNumberModelTests: XCTestCase {
    let testObject = PrimeNumberModel()  // "Use of unresolved identifier 'PrimeNumberModel'"    
}

Both swift files are in the same directory.

两个swift文件都在同一个目录中。

13 个解决方案

#1

121

I had the same problem, also in my XCTestCase files, but not in the regular project files.

我也有同样的问题，在我的XCTestCase文件中，但是在常规的项目文件中没有。

To get rid of the:

摆脱:

Use of unresolved identifier 'PrimeNumberModel'

使用未解析标识符“PrimeNumberModel”

I needed to import the base module in the test file. In my case, my target is called 'myproject' and I added import myproject and the class was recognised.

我需要在测试文件中导入基本模块。在我的例子中，我的目标是“myproject”，我添加了import myproject，并确认了类。

#2

UPDATE Swift 2.x and 3.x

Now you don't need to add the public to the methods to test then. On Swift 2 it's only necessary to add the @testable keyword.

现在不需要将public添加到要测试的方法中。在Swift 2上，只需要添加@testable关键字。

PrimeNumberModelTests.swift

PrimeNumberModelTests.swift

import XCTest
@testable import MyProject

class PrimeNumberModelTests: XCTestCase {
    let testObject = PrimeNumberModel()
}

And your internal methods can keep Internal

你的内部方法可以保持内部

PrimeNumberModel.swift

PrimeNumberModel.swift

import Foundation

class PrimeNumberModel {
   init() {
   }
}

Note that private (and fileprivate) symbols are not available even with using @testable.

注意，即使使用@testable，也不能使用私有(和fileprivate)符号。

Swift 1.x

There are two relevant concepts from Swift here (As Xcode 6 beta 6).

Swift提供了两个相关概念(如Xcode 6 beta 6)。

You don't need to import Swift classes, but you need to import external modules (targets)
您不需要导入Swift类，但是需要导入外部模块(目标)
The Default Access Control level in Swift is Internal access
Swift中的默认访问控制级别是内部访问

Considering that tests are on another target on PrimeNumberModelTests.swift you need to import the target that contains the class that you want to test, if your target is called MyProject will need to add import MyProject to the PrimeNumberModelTests:

考虑到测试是在primenumbermodeltest上的另一个目标上进行的。swift您需要导入包含您想要测试的类的目标，如果您的目标被称为MyProject，则需要向PrimeNumberModelTests添加import MyProject:

PrimeNumberModelTests.swift

PrimeNumberModelTests.swift

import XCTest
import MyProject

class PrimeNumberModelTests: XCTestCase {
    let testObject = PrimeNumberModel()
}

But this is not enough to test your class PrimeNumberModel, since the default Access Control level is Internal Access, your class won't be visible to the test bundle, so you need to make it Public Access and all the methods that you want to test:

但是这还不足以测试你的类PrimeNumberModel，因为默认的访问控制级别是内部访问，你的类对测试包来说是不可见的，所以你需要使它成为公共访问以及所有你想要测试的方法:

PrimeNumberModel.swift

PrimeNumberModel.swift

import Foundation

public class PrimeNumberModel {
   public init() {
   }
}