Library that helps you write less code when testing interface in your iOS apps.

Implementation

After you add SpecTools framework a set of options will become available for most of the UI elements through a spec property.

These are:

• action
  • simulate tap on a button with specific action event
  • simulate gesture recognizer taps
• check
  • if a view is truly visible on screen
  • view controllers and navigation stacks
  • table views have the right content in their cells
• find
  • locate any element or elements on the screen based on their content or type
  • any text on any UI element
• prepare
  • prepare your view controller like it would get setup in a real environment
  • change size of the view for any device screen during runtime to check all is still visible
  • assign your test view controllers to a mock navigation controller in order to track pushViewController or popViewController methods

There is a space for a lot more additional functionality so please feel free to raise issues with feature requests.

An example implementation is shown below:

import Foundation
import UIKit
import Quick
import Nimble
import SpecTools

@testable import SpecToolsExample


class ViewControllerSpec: QuickSpec {
    
    override func spec() {
        
        let subject = ViewController()
        
        describe("basic view controller") {
            beforeEach {
                // Simulate view controller being presented to the screen
                subject.spec.prepare.simulatePresentViewController()
                // Reset the view to specific size
                subject.spec.prepare.set(viewSize: .iPhone6Plus)
            }
            
            it("has a visible label1") {
                // Get your first label
                let element = subject.view.spec.find.first(labelWithText: "My first label")
                // Check if the label is truly visible and print out the entire view structure that is being checked
                expect(element?.spec.check.isVisible(visualize: .text)).to(beTrue())
            }
            
            it("has a visible scrollView") {
                // Get a scroll view
                let element = subject.view.spec.find.firstScrollView()
                // Check visibility
                expect(element?.spec.check.isVisible()).to(beTrue())
            }
            
            it("has a visible label2", closure: {
                // Get a label that contains "second label" and print how we get to it in the console including any text on visible elements
                let element = subject.view.spec.find.first(labelWithText: "My second label", exactMatch: false, visualize: .text)
                // Check if the label is visible on subjects view and print all frames we encounter on the way
                expect(element?.spec.check.isVisible(on: subject.view, visualize: .frames)).to(beTrue())
            })
            
            describe("when we tap on button1") {
                beforeEach {
                    // Simulate button tap
                    button1.spec.action.tap()
                }
            
                it("should have pushed new view controller") {
                    // Check we have new view controller in the navigation stack
                    expect(subject.navigationController?.spec.check.contains(viewControllerClass: TableViewController.self)).to(beTrue())
                }
            }
            
        }
        
    }
    
}

Demo app with tests

To run the example project:

• Clone the repo, and run pod install from the Example directory.
• Cmd+U to run example tests

Documentation

Jazzy based documentation is available here .

Online documentation should always reflect the latest code available on master branch.

Requirements

This library can be run completely independently. It does not need quick and nimble although we highly recommend your give these libraries a go!

Installation

For Swift 4 support please refer to swift4 branch!

Usage

Debugging

Some methods have a debugging mechanisms available. The most common one is visualize: VisualizationType parameter which allows you to print out debug data (usually a tree of elements SpecTools have recursed through) into the console.

For the visualize options available please refer to the documentation: VisualizationType

Following section should contain all of the methods available

Actions

Simulating taps

Simulate tap on a UIButton

button1.spec.action.tap()
// or
button1.spec.action.tap(event: .touchUpInside)

Simulate tap on a view with UITapGestureRecognizer(s)

view.spec.action.triggerTap()
// or
view.spec.action.triggerTap(taps: 3, touches: 2)

Executing gesture recognizers

Execute action on any UIGestureRecognizer

recognizer.spec.action.execute()

Get array of targets from any UIGestureRecognizer

• Return [(target: AnyObject, action: Selector)]

recognizer.spec.action.getTargetInfo()

Checks

Checking view visibility

Is view truly visible on the screen? Checks if the element (and all parent views) have superview, have alpha, are not hidden and have a valid on-screen frame.

view.spec.check.isVisible() // Example 1
// or
view.spec.check.isVisible(on: viewController.view, visualize: .all) // Example 2

Example 1) Ignores the last view having no superview, expects it to be view controllers view for example

Example 2) Checks visibility against another view, also an entire recursed view structure can be printed to the console

Checking table view cells

Check if all UITableViewCells available through the UITableView data source evaluate correctly

// Create an enumerate closure
let doesFitClosure: (UITableViewCell)->Bool = { (cell) -> Bool in
	guard let cell = cell as? CustomTableViewCell else {
		return false
	}
	if cell.customLabel.text?.characters.count == 0 {
		return false
	}
	return true
}

// Test if all cells generated by the data source are ok using your closure
let ok = subject.tableView.spec.check.allCells(fit: doesFitClosure)

You can also ask for an array of IndexPaths that don't fit the criteria

let indexPaths: [IndexPath] = subject.tableView.spec.check.allCells(thatDontFit: doesFitClosure)

Checking collection view cells

Check if all UICollectionViewCell available through the UICollectionView data source evaluate correctly

// Create an enumerate closure
let doesFitClosure: (UICollectionViewCell)->Bool = { (cell) -> Bool in
	guard let cell = cell as? CustomCollectionViewCell else {
		return false
	}
	if cell.customLabel.text?.characters.count == 0 {
		return false
	}
	return true
}

// Test if all cells generated by the data source are ok using your closure
let ok = subject.collectionView.spec.check.allCells(fit: doesFitClosure)

You can also ask for an array of IndexPaths that don't fit the criteria

let indexPaths: [IndexPath] = subject.collectionView.spec.check.allCells(thatDontFit: doesFitClosure)

UIViewController checks

Look for a specific view controller in your navigation stack

let ok: Bool = viewController.spec.check.has(siblingInNavigationStack: anotherViewController)

Check if a view controller has a child view controller

let ok: Bool = viewController.spec.check.has(childViewController: childViewController)

Check if a view controller has a specific class type in its navigation stack

let ok: Bool = viewController.spec.check.contains(siblingClassInNavigationStack: AnotherViewController.self)

Check if a view controller has specific class type of a child view controller

let ok: Bool = viewController.spec.check.contains(childViewControllerClass: ChildViewController.self)

UINavigationController checks

Check is navigation view controller contains certain view controller

let ok: Bool = navigationController.spec.check.has(viewController: vc)

Check is navigation view controller contains certain type of a view controller

let ok: Bool = viewController.spec.check.contains(viewControllerClass: MyCustomViewController.self)

Find

Gesture recognizers

Find all gesture recognizers of a certain type on a view (generic method)

let recognizers: [UISwipeGestureRecognizer] = view.spec.find.all(gestureRecognizersOfType: UISwipeGestureRecognizer.self)

UIKit elements

Find first label (UILabel) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(labelWithText: "My first label")
// or
let element = view.spec.find.first(labelWithText: "first", exactMatch: false, visualize: .text)

Find first text field (UITextField) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(textFieldWithText: "My first text field")
// or
let element = view.spec.find.first(textFieldWithText: "first", exactMatch: false, visualize: .text)

Find first search bar (UISearchBar) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(searchBarWithText: "My first search bar")
// or
let element = view.spec.find.first(searchBarWithText: "first", exactMatch: false, visualize: .text)

Find first text view (UITextView) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(textViewWithText: "My first text view")
// or
let element = view.spec.find.first(textViewWithText: "first", exactMatch: false, visualize: .text)

Find first table view cell (UITableViewCell) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(tableViewCellWithText: "My first cell")
// or
let element = view.spec.find.first(tableViewCellWithText: "first", exactMatch: false, visualize: .text)

Find first button (UIButton) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(buttonWithText: "My first button")
// or
let element = view.spec.find.first(buttonWithText: "first", exactMatch: false, visualize: .text)

Find first table header or footer view (UITableViewHeaderFooterView) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(tableSectionHeaderFooterViewWithText: "My first table header or footer view")
// or
let element = view.spec.find.first(tableSectionHeaderFooterViewWithText: "first", exactMatch: false, visualize: .text)

Find first UITableView's header or footer (not a section header or footer) on a specific view, which contains or matches required string. View you are searching on can hold multiple table views. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(tableHeaderFooterViewWithText: "My first header view")
// or
let element = view.spec.find.first(tableHeaderFooterViewWithText: "first", exactMatch: false, visualize: .text)

Find first view (any UIView) on a specific parent view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(elementWithText: "My first view with some text on a label deep inside")
// or
let element = view.spec.find.first(elementWithText: "deep", exactMatch: false, visualize: .text)

Find first element (any UIView subclass for Element) on a specific view, which contains or matches required string. To search for an element by it's only a partial string/content, use exactMatch: Bool flag. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(elementOfType: MyCustomView.self, withText: "My first custom view with some text on a label deep inside")
// or
let element = view.spec.find.first(elementOfType: UILabel.self, withText: "custom", exactMatch: false, visualize: .text)

Find first table view (UITableView) on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.firstTableView()
// or
let element = view.spec.find.firstTableView(visualize: .frames)

Find first collection view (UICollectionView) on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.firstCollectionView()
// or
let element = view.spec.find.firstCollectionView(visualize: .frames)

Find first scroll view (UIScrollView) on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.firstScrollView()
// or
let element = view.spec.find.firstScrollView(visualize: .frames)

Find first table header or footer view (UITableViewHeaderFooterView) on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.firstTableHeaderFooterView()
// or
let element = view.spec.find.firstTableHeaderFooterView(visualize: .frames)

Find first element (generic method) on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.first(elementOfType: MyCustomView.self)
// or
let element = view.spec.find.first(elementOfType: UIButton.self, visualize: .frames)

Find all elements of a certain type on a specific view. To visualize the path to the element, use visualize: VisualizationType. Please refer to the Debugging section for more details.

let element = view.spec.find.all(elementsOfType: UITextField.self)
// or
let element = view.spec.find.all(elementsOfType: MyCustomView.self, visualize: .frames)

Searching for text on some UIKit elements

Get a text from specific view in order of it's importance (first text on a text field, than it looks for placeholder if text is empty). You can specify what text you are looking for by using preferablyMatching: String. If no text matching the string is found, method will revert to it's original order of priorities. Method returns nil if no direct text property is available.

This method only works for UILabel, UITextField, UISearchBar or UITextView

let element = view.spec.find.anyText()
// or
let element = view.spec.find.anyText(preferablyMatching: "Welcome to my fun app!")

Prepare

Prepare view controllers for testing

Will touch view of a view controller in order to get loadView and viewDidLoad called, than manually calls viewWillAppear and viewDidAppear with animations disabled

viewController.spec.prepare.simulatePresentViewController()

Set a new, specific size for a view controllers view during runtime

viewController.spec.prepare.set(viewSize: CGSize(width: 375.0, height: 1500))

Set a screensize of a desired device on a view of your view controller, you can specify a custom height. Custom height might be useful when scrollviews are present

viewController.spec.prepare.set(viewSize: .iPhone6Plus)
// or
let customHeight: CGFloat = 5000.0
viewController.spec.prepare.set(viewSize: .iPhone6Plus, height: customHeight)

Give view controller a navigation controller

viewController.spec.prepare.assignNavigationController()
// or
viewController.spec.prepare.assignNavigationController(ofClass: CustomNavigationViewController.self)

Give view controller a mock navigation controller which mainly allows for testing push/pop functionality

viewController.spec.prepare.assignMockNavigationController()

Author

Ondrej Rafaj, [email protected]

License

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