Add UnitTest for ViewModel about `@Published` properties.

[fumiyasac]

Motivation

By introducing unit tests, you can check whether State changes are being executed correctly.
Fortunately, the Repository class has a structure that allows you to create a Mock based on the Protocol.

Idea

For Example, I think the following ideas for utilizing OSS are effective.

• combine-schedulers
• CombineExpectations

Appendix

You may also refer to the UnitTest example of the @published property part in the architecture using Redux that I implemented earlier.

• 🍙 Using SwiftUI & Redux UI Implementation Example
  • 📝 Commentary Article

[uhooi]

なるほど、ViewModel の単体テストについての Issue なのですね…ありがとうございます！
時間があるときに頑張ってみます…！