Problem with MahApps.Styles.Slider style causes TestStack.White AutomationException

[kamalkaushik1]

Describe the bug

When using MahApps.Styles.Slider.Win10 or MahApps.Styles.Slider styles, TestStack.White.AutomationException occurs when calling Increment(double d).

After reviewing the code implementation for MahApps.Styles.Slider.Win10 and MahApps.Styles.Slider styles, I discovered that the names of the DecreaseRepeatButton and IncreaseRepeatButton properties have been changed to HorizontalTrackDecrease and HorizontalTrackIncrease, respectively. However, TestStack.White is still referencing DecreaseLarge and IncreaseLarge

Note: This behavior is not observed with MahApps.Styles.Slider.Flat as it is using the names as DecreaseLarge and IncreaseLarge.

Steps to reproduce

1. Use MahApps.Styles.Slider.Win10 or MahApps.Styles.Slider style in a WPF application.
2. Use TestStack.White to interact with the Slider, e.g., calling Increment(double d).

Expected behavior

Expected Behavior:
When using MahApps.Styles.Slider.Win10 or MahApps.Styles.Slider styles and interacting with the Slider through TestStack.White, the HorizontalTrackDecrease and HorizontalTrackIncrease should be updated to DecreaseLarge and IncreaseLarge to keep it consistent, so it is recognized as the respective RepeatButtons.

Actual behavior

When using the MahApps.Styles.Slider.Win10 or MahApps.Styles.Slider style and calling the Increment(double d) method with TestStack.White, an AutomationException is thrown. The specific error message is: "Failed to get (ControlType=button or ControlType=check box), AutomationId=IncreaseLarge."

Environment

MahApps.Metro version: v2.4.10
Visual Studio: 2022 17.7.0
Target Framework: .Net framework 4.7.2

Screenshots

Slider.xmal

vs
FlatSlider.xmal