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Programming language: Swift
License: Apache License 2.0
Tags: Testing     Other Testing    
Latest version: v0.1.0

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README

Tooploox

SnappyTestCase

iOS Simulator type agnostic snapshot testing, built on top of the FBSnapshotTestCase.

Why?

Snapshot testing helps to deliver views that scale correctly with a wide range of screen sizes. When it comes to view controllers, we usually want to ensure they keep visual quality on a various set of existing devices, in each supported orientation. Test suite could be run on numerous variants of iOS Simulators. However, this could be a really time-consuming task, for sure not acceptable during a development process. SnappyTestCase tackles this issue by combining test with a set of device definitions (each one including screen size, scale, and orientation) to validate with, ignoring real device simulator context information.

Features

  • Simulator type insensitive snapshot testing => restart free, quick various device testing
  • Handy definitions of iOS devices to test with - both iPhone and iPad, with chainable filtering API
  • Forcing simulator to adopt scale and orientation according to test device definition
  • Adding device type and orientation to reference file names
  • You can resize one and validate snapshot of another view (for example, you can resize whole window with UITabBarController and validate snapshot of its tab bar only)
  • Optional closure executed just before verifying view

Getting Started

Validating view controller on all existing iPhones, with portrait orientation (default):

func testAllDevices() {
    let window = UIWindow()
    window.makeKeyAndVisible()
    window.rootViewController = ExampleViewController(nibName: nil, bundle: nil)

    verifyViewSnaps(DeviceRack.iPhone.all, view: window)
}

For more examples of usage check out SnappyDemo project.

Defining device set cheat sheet

Expression Device set description Snapshot count
DeviceRack.iPhone.all.landscape All iPhones, in landscape orientation 4
DeviceRack.iPhone.all.portrait.uniqueWidths Set of iPhones covering all possible screen widths in portrait orientation 3
DeviceRack.iPad.retina.landscape Retina 9.7" / 7.9" iPad, landscape 1

Installation using CocoaPods

Add following line to your test target pods list in Podfile:

pod 'SnappyTestCase'

License

SnappyTestCase is distributed under the Apache 2.0 license.

Feedback

We love receiving feedback and we encourage you to contact us and share your thoughts either via e-mail [email protected] or Twitter by mentioning @tooploox.


*Note that all licence references and agreements mentioned in the SnappyTestCase README section above are relevant to that project's source code only.