https://github.com/ccabanero/ios-unit-testing-patterns

Unit testing code snippets for various iOS development scenarios.
https://github.com/ccabanero/ios-unit-testing-patterns

Last synced: about 2 months ago
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Unit testing code snippets for various iOS development scenarios.

• Host: GitHub
• URL: https://github.com/ccabanero/ios-unit-testing-patterns
• Owner: ccabanero
• Created: 2014-09-04T18:33:25.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2017-12-31T16:28:00.000Z (almost 8 years ago)
• Last Synced: 2025-01-09T01:55:36.917Z (10 months ago)
• Homepage:
• Size: 48.8 KB
• Stars: 164
• Watchers: 6
• Forks: 34
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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• awesome-unit-testing-swift - Unit Testing Patterns (by Clint Cabanero)

README

          
iOS Unit Testing Patterns

=========================

### Description

Unit testing code snippets for various iOS development scenarios.

### Language

Swift 4.x

### Unit Testing Framework

XCTest.framework

### Sample Unit Tests for ViewController Classes

__[Working with a ViewController composed of TableViews](https://gist.github.com/ccabanero/39ee6d5fd7b289dee695)__

* View Controller is composed of TableView

* Conforms to and implements UITableViewDataSource protocol methods.

* Conforms to and implements UITableViewDelegate protocol methods.

* TableView has expected reuse identifier

* TableViewCells have expected properties (e.g. cell label)

__[Working with a ViewController composed of CollectionViews](https://gist.github.com/ccabanero/6ef47c1aeb21acfb326d30f6b01825d1)__

* Conforms to and implements UICollectionViewDatasource protocol methods.

* Conforms to and implements UICollectionViewDelegate protocol methods.

* Conforms to and implements UICollectionViewDelegateFlowLayout protocol methods.

__[Working with NavigationItems](https://gist.github.com/ccabanero/4a1a4bfbf5fa3fbbb1070c8765c3de73)__

* Testing initialization and state of back button (navigationItem.backBarButtonItem).

* Testing state of custom title view (navigationItem.titleView).

* Testing target-action pattern for Right Bar Button (navigationItem.rightBarButtonItem).

* Testing UIBarButtonItem can pop ViewController from navigation stack.

* [Testing UIRightBarButtonItem has correct custom UIImage when toggled](https://gist.github.com/ccabanero/ed9111e472f6cb283ff8c3e714712efa)

__[Working with a ViewController composed of UISearchBar](https://gist.github.com/ccabanero/0f20b0708c0d756327995e58ff3309d4)__

* Testing initialization and state of search bar after view loads.

* Conforms to SearchBarDelegate protocol methods.

* Testing of auto-suggest behavior between SearchBar.text and UITableView items.

* Testing pre-processing of Search Text when 'Search' button tapped on virtual/soft keyboard.

__Working with Segues between ViewControllers__

* [Storyboard has target Segue](https://gist.github.com/ccabanero/a0fbb675f44a5136d2811d21a77e332a)

* [Testing a Segue is called using a Mock UIViewController](https://gist.github.com/ccabanero/9f7ad6775eacec3cc997)

* [Testing Segue passes data to Target ViewController](https://gist.github.com/ccabanero/308db4882b7ca4967ebb5d17530177f3)

* [Testing ViewController can respond to an Unwind Segue](https://gist.github.com/ccabanero/177a54d2be3694f08c4f3c8f02f74394)

__[Working with a ViewController composed of Custom Views](https://gist.github.com/ccabanero/ac7237e4591092130326)__

* Testing initialization and state of Custom View properties when view loads.

__[Working with a ViewController composed of MKMapView](https://gist.github.com/ccabanero/90c73c46ed1671298775)__

* Testing state of MKMapView after view loads.

* Conforms to and implements MKMapViewDelegate protocol methods.

* Testing MapView adds annotations to the map.

* Testing MapView adds specific types of MKAnnotation.

__[Working with a ViewConroller that uses CoreLocation](https://gist.github.com/ccabanero/dd35e7bee8205ad225f3de1391027aa5)__

* Conforms to and implements CLLocationManager protocol methods.

__[Working with a ViewController composed of a UISegmentedControl](https://gist.github.com/ccabanero/e204496231a41759fa94)__

* Testing initialization and state of UISegmentedControl after view loads.

* Testing UISegmentedControl action method is invoked on change.

__[Working with a ViewController composed of a UIPickerView](https://gist.github.com/ccabanero/8d1dfa65218b8bb10ebf)__

* Testing initialization and state of UIPickerView after view loads.

* Conforms to and implements UIPickerViewDataSource protocol methods.

* Conforms to and implements UIPickerViewDelegate protocol methods.

__[Working with a ViewController composed of a UIButton](https://gist.github.com/ccabanero/b92197516342c0147688)__

* Testing initialization and state of UIButton after view loads.

* Testing target-action pattern of UIButton.

__[Working with a ViewController composed of a UILabel](https://gist.github.com/ccabanero/68cd8ff461316930f707)__

* Testing initialization and state of UILabel after view loads.

* Testing label state after invoking the action methods of other controls.

__[Working with a ViewController that presents a UIAlertController](https://gist.github.com/ccabanero/b88a77caba37f8dd9fbf)__

* Using a mock ViewController to confirm launching UIAlertViewController

* Testing the initialization and state of UIAlertController once presented.

### Sample Unit Tests for Model Classes

[Testing Model Class Initialization](https://gist.github.com/ccabanero/90c6e2aadfd4efa6b059333edeb2b314) 

[Testing Model Class methods](https://gist.github.com/ccabanero/4221831a4c527c0453a8506628df34af)

[Asynchronous Integration Test When Model performs work over the Network](https://gist.github.com/ccabanero/24a46c777bb29da95ba5)

[Model adopts the MKAnnotation protocol](https://gist.github.com/ccabanero/f6f8aeb7ea06073753bf)

[Model can Process the Response From Async Network Request](https://gist.github.com/ccabanero/1160dc6d95182593d111)

[Confirming Model object instantiation of a NSManagedObject subclass](https://gist.github.com/ccabanero/93501b0cc78e2023f119)

[Confirming that a NSManagedObject subclass Category properly seeds CoreData](https://gist.github.com/ccabanero/3de1a0cfecc7cb4fa9e6)

### Set Up for Testing ViewController

* When unit testing ViewController classes in storyboards, make sure to explicitly declare a 'Storyboard ID' property in the Identity Inspector for that ViewController.

* Use the __@testable__ attribute before declaring your test case class (see sample below).

* In the sample below, substitue __MyViewController__ with the name of your UIViewController you are testing.

````

    import XCTest

    @testable import YourAppTargetName

    class UnitTestsTests: XCTestCase {

        var viewControllerUnderTest: MyViewController!

        override func setUp() {

            super.setUp()

            let storyboard = UIStoryboard(name: "Main", bundle: nil)

            self.viewControllerUnderTest = storyboard.instantiateViewController(withIdentifier: "MyViewController") as! MyViewController

            self.viewControllerUnderTest.loadView()

            self.viewControllerUnderTest.viewDidLoad()

        }

        override func tearDown() {

            // Put teardown code here. This method is called after the invocation of each test method in the class.

            super.tearDown()

        }

        func testStuff() {

           XCTAssertEqual(1, 1)

        }

    }

```` 

### Add a Test Case file

Below are steps for adding a Test Case file for an individual class that you are testing.

* Right-click your Tests folder in the Xcode Project Navigator

* Choose New File

* Choose Cocoa Touch Class

* Use a naming convention - such as appending Test to your class name.  For example, use MapViewControllerTest for testing MapViewController.

* Choose the Subclass of __XCTestCase__

* Confirm the Test target is selected

* Choose Create

### Connect

* Twitter: [@clintcabanero](http://twitter.com/clintcabanero)

* GitHub: [ccabanero](http:///github.com/ccabanero)