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1

My application supports dynamic fonts. When user changes font size in settings (Settings > General > Accessibility > Larger Text) and jump back to application then every label should be updated.

It is implemented by overriding UILabel's function

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) 
 super.traitCollectionDidChange(previousTraitCollection)
 guard previousTraitCollection?.preferredContentSizeCategory != traitCollection.preferredContentSizeCategory else return 

 let metrics: UIFontMetrics = UIFontMetrics(
 forTextStyle: UIFont.TextStyle.body
 )
 font = metrics.scaledFont(for: font)

Now I need to test if other views react correctly to label's dynamic nature.

Specifically, I would like to have following unit test:

1. Create view with label


2. Get size of view


3. Change system font to bigger


4. Get size of view


5. Compare if sizes changed

func testDynamicFont() 

 let v: MyView = MyView()
 let oldSize: CGSize = v.intrinsicContentSize
 ??? What to do here? ???
 let newSize: CGSize = v.intrinsicContentSize
 XCTAssertNotEqual(
 oldSize, 
 newSize, 
 "Size of view should adjust to new environment"
 )

ios swift unit-testing

share|improve this question

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does the below answer solves your problem?
  
  – Anand
  Mar 26 at 15:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes it do. Thank you :)
  
  – Pikacz
  Mar 26 at 16:12
  

  
  
  
  

add a comment | 

1

My application supports dynamic fonts. When user changes font size in settings (Settings > General > Accessibility > Larger Text) and jump back to application then every label should be updated.

It is implemented by overriding UILabel's function

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) 
 super.traitCollectionDidChange(previousTraitCollection)
 guard previousTraitCollection?.preferredContentSizeCategory != traitCollection.preferredContentSizeCategory else return 

 let metrics: UIFontMetrics = UIFontMetrics(
 forTextStyle: UIFont.TextStyle.body
 )
 font = metrics.scaledFont(for: font)

Now I need to test if other views react correctly to label's dynamic nature.

Specifically, I would like to have following unit test:

1. Create view with label


2. Get size of view


3. Change system font to bigger


4. Get size of view


5. Compare if sizes changed

func testDynamicFont() 

 let v: MyView = MyView()
 let oldSize: CGSize = v.intrinsicContentSize
 ??? What to do here? ???
 let newSize: CGSize = v.intrinsicContentSize
 XCTAssertNotEqual(
 oldSize, 
 newSize, 
 "Size of view should adjust to new environment"
 )

ios swift unit-testing

share|improve this question

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does the below answer solves your problem?
  
  – Anand
  Mar 26 at 15:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes it do. Thank you :)
  
  – Pikacz
  Mar 26 at 16:12
  

  
  
  
  

add a comment | 

My application supports dynamic fonts. When user changes font size in settings (Settings > General > Accessibility > Larger Text) and jump back to application then every label should be updated.

It is implemented by overriding UILabel's function

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) 
 super.traitCollectionDidChange(previousTraitCollection)
 guard previousTraitCollection?.preferredContentSizeCategory != traitCollection.preferredContentSizeCategory else return 

 let metrics: UIFontMetrics = UIFontMetrics(
 forTextStyle: UIFont.TextStyle.body
 )
 font = metrics.scaledFont(for: font)

Now I need to test if other views react correctly to label's dynamic nature.

Specifically, I would like to have following unit test:

1. Create view with label


2. Get size of view


3. Change system font to bigger


4. Get size of view


5. Compare if sizes changed

func testDynamicFont() 

 let v: MyView = MyView()
 let oldSize: CGSize = v.intrinsicContentSize
 ??? What to do here? ???
 let newSize: CGSize = v.intrinsicContentSize
 XCTAssertNotEqual(
 oldSize, 
 newSize, 
 "Size of view should adjust to new environment"
 )

ios swift unit-testing

share|improve this question

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) 
 super.traitCollectionDidChange(previousTraitCollection)
 guard previousTraitCollection?.preferredContentSizeCategory != traitCollection.preferredContentSizeCategory else return 

 let metrics: UIFontMetrics = UIFontMetrics(
 forTextStyle: UIFont.TextStyle.body
 )
 font = metrics.scaledFont(for: font)

func testDynamicFont() 

 let v: MyView = MyView()
 let oldSize: CGSize = v.intrinsicContentSize
 ??? What to do here? ???
 let newSize: CGSize = v.intrinsicContentSize
 XCTAssertNotEqual(
 oldSize, 
 newSize, 
 "Size of view should adjust to new environment"
 )

share|improve this question

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

share|improve this question

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

edited Mar 26 at 9:51

sourav.bh

44411 gold badge55 silver badges1919 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

asked Mar 25 at 10:31

PikaczPikacz

5311 silver badge88 bronze badges

1 Answer
1

active

oldest

votes

1

You can increase the System Font size using below code.

 let settings = XCUIApplication(bundleIdentifier: "com.apple.Preferences")
 settings.launch()
 settings.tables.staticTexts["General"].tap()
 settings.tables.staticTexts["Accessibility"].tap()
 settings.tables.staticTexts["Larger Text"].tap()
 settings.sliders.element.adjust(toNormalizedSliderPosition: 0.7) // Increase as you need

To go back to your own app,

let yourapp = XCUIApplication(bundleIdentifier: "com.xxx.yourappbundleid")
yourapp.activate()

Tested in iPhone (Real Device), iOS 12.1.4

share|improve this answer

edited Mar 26 at 15:11

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

add a comment | 

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1

You can increase the System Font size using below code.

 let settings = XCUIApplication(bundleIdentifier: "com.apple.Preferences")
 settings.launch()
 settings.tables.staticTexts["General"].tap()
 settings.tables.staticTexts["Accessibility"].tap()
 settings.tables.staticTexts["Larger Text"].tap()
 settings.sliders.element.adjust(toNormalizedSliderPosition: 0.7) // Increase as you need

To go back to your own app,

let yourapp = XCUIApplication(bundleIdentifier: "com.xxx.yourappbundleid")
yourapp.activate()

Tested in iPhone (Real Device), iOS 12.1.4

share|improve this answer

edited Mar 26 at 15:11

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

add a comment | 

1

You can increase the System Font size using below code.

 let settings = XCUIApplication(bundleIdentifier: "com.apple.Preferences")
 settings.launch()
 settings.tables.staticTexts["General"].tap()
 settings.tables.staticTexts["Accessibility"].tap()
 settings.tables.staticTexts["Larger Text"].tap()
 settings.sliders.element.adjust(toNormalizedSliderPosition: 0.7) // Increase as you need

To go back to your own app,

let yourapp = XCUIApplication(bundleIdentifier: "com.xxx.yourappbundleid")
yourapp.activate()

Tested in iPhone (Real Device), iOS 12.1.4

share|improve this answer

edited Mar 26 at 15:11

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

add a comment | 

You can increase the System Font size using below code.

 let settings = XCUIApplication(bundleIdentifier: "com.apple.Preferences")
 settings.launch()
 settings.tables.staticTexts["General"].tap()
 settings.tables.staticTexts["Accessibility"].tap()
 settings.tables.staticTexts["Larger Text"].tap()
 settings.sliders.element.adjust(toNormalizedSliderPosition: 0.7) // Increase as you need

To go back to your own app,

let yourapp = XCUIApplication(bundleIdentifier: "com.xxx.yourappbundleid")
yourapp.activate()

Tested in iPhone (Real Device), iOS 12.1.4

share|improve this answer

edited Mar 26 at 15:11

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

 let settings = XCUIApplication(bundleIdentifier: "com.apple.Preferences")
 settings.launch()
 settings.tables.staticTexts["General"].tap()
 settings.tables.staticTexts["Accessibility"].tap()
 settings.tables.staticTexts["Larger Text"].tap()
 settings.sliders.element.adjust(toNormalizedSliderPosition: 0.7) // Increase as you need

let yourapp = XCUIApplication(bundleIdentifier: "com.xxx.yourappbundleid")
yourapp.activate()

share|improve this answer

edited Mar 26 at 15:11

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges

answered Mar 25 at 16:06

AnandAnand

1,1371212 silver badges2020 bronze badges