Added Unit test for Reviewer.kt.

[Haz3-jolt]

Purpose / Description

Added Unit test to function with @NeedsTest.

Fixes

• Created test for AddNote() to address "Starting animation from swipe is inverse to the finishing one".

Approach

• Unit test completed.

How Has This Been Tested?

• Ran the Unit test multiple times, and ensured it is passing.

Checklist

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[david-allison]

Thanks! In future, please ping if you feel things are forgotten about

[Haz3-jolt]

Thanks! In future, please ping if you feel things are forgotten about

Forgot about the PR myself lol! No worries at all

[david-allison]

Y'know, none of these are blocking, let's go!

[Haz3-jolt]

Y'know, none of these are blocking, let's go!

I did make the changes btw

[david-allison]

Clean!

[lukstbit]

Thanks!
A request for future tests: there's no need to add comments with Arrange/Act/Assert. These could be useful for someone just starting to read tests but later becomes verbose. Adding an empty line between the logical groups is perfectly fine.