ABKit

AB testing framework for iOS

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ABKit

Build Status

Split Testing for Swift.

ABKit is a library for implementing a simple Split Test that:

  • Doesn't require an HTTP client
  • written in Pure Swift

Installation

CocoaPods

To integrate ABKit into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'ABKit'

Then, run the following command:

$ pod install

Usage

A/B Test

let defaultVersion = Version(name: "A") { version in print("Pattern \(version.name)") }
let test = SplitTest(name: "Sample A/B test", defaultVersion: defaultVersion)

let b = Version(name: "B") { version in print("Pattern \(version.name)") }
test.addVersion(b, weight: 0.5)

test.run() // A(Default Version) = 50%, B = 50%

Split Test with Weighted Probabilities

let defaultVersion = Version(name: "A") { version in print("Pattern \(version.name)") }
let test = SplitTest(name: "Sample split test", defaultVersion: defaultVersion)

let b = Version(name: "B") { version in print("Pattern \(version.name)") }
test.addVersion(b, weight: 0.2)

let c = Version(name: "C") { version in print("Pattern \(version.name)") }
test.addVersion(c, weight: 0.3)

test.run() // A(Default Version) = 50%, B = 20%, C = 30%

Conditional Test

let defaultVersion = Version(name: "A") { version in print("Pattern \(version.name)") }
let test = ConditionalTest<User>(name: "Sample conditional test", defaultVersion: defaultVersion)

let b = Version(name: "B") { version in print("Pattern \(version.name)" }
test.addVersion(b) { user in user.age < 20 }

let user = User(name: "naoty", age: 28)
test.run(user) // If user.age < 20 is true, B will be run otherwise A will be run.

Pro Tips

  • ABKit selects one of the versions using a random number, which is saved in RandomNumberRepository. By default, ABKit uses NSUserDefault as RandomNumberRepository. You can save it in any storage by implementing RandomNumberRepository protocol.
  • You can specify an arbitrary number as the random number using -setRandomNumber(_:) and reset a random number using -deleteRandomNumber() for SplitTest.

License

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

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