Is there a way to reset the app between tests in Swift XCTest UI?

Question

Is there an API call within XCTest that I can put into the setUP() or tearDown() to reset the app between tests? I looked in the dot syntax of XCUIApplication and all I saw was the .launch()

OR is there a way to call a shell script in Swift? I could then call xcrun in-between test methods to reset the simulator.

Answer 1

You can add a "Run Script" phase to build phases in your test target to uninstall the app before running unit tests against it, unfortunately this is not between test cases, though.

/usr/bin/xcrun simctl uninstall booted com.mycompany.bundleId

Update

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Between tests, you can delete the app via the Springboard in the tearDown phase. Although, this does require use of a private header from XCTest. (Header dump is available from Facebook's WebDriverAgent here.)

Here is some sample code from a Springboard class to delete an app from Springboard via tap and hold:

#Swift 4:

import XCTest  class Springboard {      static let springboard = XCUIApplication(bundleIdentifier: "com.apple.springboard")          /**      Terminate and delete the app via springboard      */     class func deleteMyApp() {         XCUIApplication().terminate()                   // Force delete the app from the springboard         let icon = springboard.icons["Citizen"]         if icon.exists {             let iconFrame = icon.frame             let springboardFrame = springboard.frame             icon.press(forDuration: 1.3)                      // Tap the little "X" button at approximately where it is. The X is not exposed directly             springboard.coordinate(withNormalizedOffset: CGVector(dx: (iconFrame.minX + 3) / springboardFrame.maxX, dy: (iconFrame.minY + 3) / springboardFrame.maxY)).tap()                      springboard.alerts.buttons["Delete"].tap()         }     }  } 

#Swift 3-:

import XCTest  class Springboard {      static let springboard = XCUIApplication(privateWithPath: nil, bundleID: "com.apple.springboard")          /**      Terminate and delete the app via springboard      */     class func deleteMyApp() {         XCUIApplication().terminate()                  // Resolve the query for the springboard rather than launching it         springboard.resolve()                  // Force delete the app from the springboard         let icon = springboard.icons["MyAppName"]         if icon.exists {             let iconFrame = icon.frame             let springboardFrame = springboard.frame             icon.pressForDuration(1.3)                          if #available(iOS 13.0, *) {                 springboard.buttons["Remove App"].tap()                 springboard.alerts.buttons["Delete App"].tap()                 springboard.alerts.buttons["Delete"].tap()             } else {                              // Tap the little "X" button at approximately where it is. The X is not exposed directly                 let xPosition = CGVector(dx: (iconFrame.minX + 3) / springboardFrame.maxX,                                      dy: (iconFrame.minY + 3) / springboardFrame.maxY)                 springboard.coordinate(withNormalizedOffset: xPosition).tap()                 springboard.alerts.buttons["Delete"].tap()             }         }     }  } 

And then:

override func tearDown() {     Springboard.deleteMyApp()     super.tearDown() } 

The private headers were imported in the Swift bridging header. You'll need to import:

// Private headers from XCTest #import "XCUIApplication.h" #import "XCUIElement.h" 

Note: As of Xcode 10, XCUIApplication(bundleIdentifier:) is now exposed by Apple, and the private headers are no longer needed.