AB testing framework for iOS

Related tags

Testing ABKit

Overview

ABKit

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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Comments

if random number is initialized to 0, it will be reset on next run()

generateRandomNumber() return a number in [0,99] stored integer is tested against 0 so there is 1 chance out of 100 that number will change:

    public func ab_getRandomNumberWithKey(key: String) -> Int {
        var randomNumber = integerForKey(key)
        if randomNumber == 0 {
            randomNumber = generateRandomNumber()
            setInteger(randomNumber, forKey: key)
        }
        return randomNumber
    }

opened by jauboux 0