How can you test that a directive correctly responds to changes in input values?

  • Directly manipulate the directive's DOM elements and observe changes
  • Manually update the directive's input values and check the DOM
  • Use the TestBed's detectChanges method to trigger change detection
  • Use the ng test CLI command to automate the testing process
To test that a directive correctly responds to input value changes, you should use the TestBed's detectChanges method to trigger change detection.
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