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danielsaidi/MockingKit

MockingKit

About MockingKit

MockingKit is a Swift-based mocking library that makes it easy to mock protocols and classes. It lets you register function results, call functions and inspect calls:

protocol MyProtocol {
    func doStuff(int: Int, string: String) -> String
}

class MyMock: Mock, MyProtocol {

    lazy var doStuffRef = MockReference(doStuff)  // References must be lazy

    func doStuff(int: Int, string: String) -> String {
        call(doStuffRef, args: (int, string))
    }
}

let mock = MyMock()
mock.registerResult(for: mock.doStuffRef) { args in String(args.1.reversed()) }
let result = mock.doStuff(int: 42, string: "string")    // => "gnirts"
let calls = mock.calls(to: mock.doStuffRef)             // => 1 item
calls[0].arguments.0                                    // => 42
calls[0].arguments.1                                    // => "string"
calls[0].result                                         // => "gnirts"
mock.hasCalled(mock.doStuffRef)                         // => true
mock.hasCalled(mock.doStuffRef, numberOfTimes: 1)       // => true
mock.hasCalled(mock.doStuffRef, numberOfTimes: 2)       // => false

MockingKit supports:

• mocking protocols
• mocking classes
• mocking non-returning and returning functions
• mocking synchronous and asynchronous functions
• void, optional and non-optional result values
• argument-based results

MockingKit doesn't put any restrains on your code or require you to structure it in any way. You don't need any setup or configuration. Just create a mock and you're good to go.

For more information, have a look at this detailed example.

Installation

Swift Package Manager

https://github.com/danielsaidi/MockingKit.git

CocoaPods

pod 'MockingKit'

Demo App

This repository contains a demo app that shows you how to use MockingKit.

To run it, just open and run Demo/Demo.xcodeproj.

Contact me

Feel free to reach out if you have questions or if you want to contribute in any way:

• E-mail: daniel.saidi@gmail.com
• Twitter: @danielsaidi
• Web site: danielsaidi.com

Acknowledgements

MockingKit is based on Stubber, and would not have been possible without it.

License

MockingKit is available under the MIT license. See the LICENSE file for more info.