Smock

Smock makes testing protocol extensions in Swift easier by providing capability to record selector calls, parameters and stub return values

Example

Look for ProtocolUnderTest, ProtocolUnderTestMock and TestingProtocolExtensions in Tests for more details.

Basic example:

Protocol defines following interface

protocol ProtocolUnderTest: class {
    func functionToTest()
    func functionToImplement()
}

Extension implements functionToTest that calls functionToImplement

extension ProtocolUnderTest {
    func functionToTest() {
        functionToImplement()
    }
}

To test that extension actually does required work (on our case function call) we create a mock in test target that conforms to ProtocolUnderTest and Mock protocols, implement required functionToImplement as follows:

class ProtocolUnderTestMock: NSObject, ProtocolUnderTest, Mock {}
extension ProtocolUnderTestMock {
    func functionToImplement() {
        registerSelector(#selector(functionToImplement))
    }
}

Requirements

Installation

Cocoapods

Smock is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "Smock"

Swift Package Manager

To use Swift Package Manager try adding following to your Package.swift file:

import PackageDescription
let package = Package(
    name: "YOUR_PROJECT_NAME",
    targets: [],
    dependencies: [
        .Package(url: "https://github.com/kviksilver/Smock.git", majorVersion: 0),
    ]
    )

Author

kviksilver, berceg@gmail.com

License

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