Mockery
About Mockery
Mockery is a mocking library for Swift. Mockery lets you register
function results, invoke
method calls and inspect
invokations:
protocol MyProtocol {
func doStuff(int: Int, string: String) -> String
}
class MyMock: Mock, MyProtocol {
lazy var doStuffRef = MockReference(doStuff) // This has to be lazy
func doStuff(int: Int, string: String) -> String {
invoke(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 inv = mock.invokations(of: mock.doStuffRef) // => 1 item
inv[0].arguments.0 // => 42
inv[0].arguments.1 // => "message"
inv[0].result // => "gnirts"
mock.hasInvoked(mock.doStuffRef) // => true
mock.hasInvoked(mock.doStuffRef, numberOfTimes: 1) // => true
mock.hasInvoked(mock.doStuffRef, numberOfTimes: 2) // => false
Mockery supports:
- mocking protocols
- mocking classes (using [
Mockable
][Mockable]) - mocking synchronous and asynchronous functions.
- mocking non-returning and returning functions.
void
,optional
andnon-optional
result values.- argument-based, variable result values.
Mockery doesn't put any restrains on your code or require you to structure it in any way. Just create a mock when you want to mock a protocol and you're good to go.
For more information, have a look at this detailed example.
Installation
Swift Package Manager
https://github.com/danielsaidi/Mockery.git
CocoaPods
pod 'Mockery'
Demo App
This repository contains a demo app that shows you how to use Mockery. To run it, just open and run MockeryDemo.xcodeproj
.
Contact me
Feel free to reach out if you have questions or if you want to contribute in any way:
- E-mail: [email protected]
- Twitter: @danielsaidi
- Web site: danielsaidi.com
Acknowledgements
Mockery is inspired by Stubber, and would not have been possible without it. However, Stubber uses global functions, which requires you to reset the global state every now and then. Mockery moves this logic to each mock, which means that any recorded exeuctions are automatically reset when the mock is disposed. Mockery also adds some extra functionality, like support for optional and void results and convenient inspection utilities.
License
Mockery is available under the MIT license. See the LICENSE file for more info.