Demo TODOish

This app is a simple task manager that allows you to add, edit, and delete tasks. It uses DIKit for dependency injection and SpryKit for testing. The main purpose of this app is to show how to use DIKit and SpryKit in a SwiftUI project. It is not a full-featured app, but it is a good starting point for your own project.

The most important points of this project are:

• SwiftUI.Preview is perfectly working in any place of the project because of the DIKit.container.
• DIKit.container is placed in the environment and can resolve dependencies based on protocols instead of concrete types which is restricted by SwiftUI.
• SpryKit is used for mocking dependencies in tests. It is a good practice to create fake objects for all dependencies in tests. It makes tests more reliable and faster. SpryKit is a great tool for that! It helps to generate fake objects automatically using macros.
• StorageKit is a simple wrapper around UserDefaults that allows you to store and retrieve objects in a type-safe way. It represents that you can use your own frameworks and make SpryKit-friendly for testing.

See some examples:

• "View+DI" - how to use DIKit.container in SwiftUI views/previews
• "AppContainer" - how to register dependencies in the container using assemblies
• "SharedTypes" - how to share types for whole project and don't flood project with imports
• "DBManager" - is a protocol for DBManager class, so you can easily mock it in tests. see FakeDBManager
• protocol "ViewModeling" and property wrapper iVModel - how to inject view models into views
• "MainView.ViewModel" and "TaskView.ViewModel" - how to create complex view model and use it in the view. Main point is to inject dependencies into the view model instead of View - it makes testing easier and cleaner. In that way View is responsible only for rendering data and handling user interactions.
• "TaskView.ViewModelTests" and "MainView.ViewModelTests" - how to test view models with SpryKit and how to mock dependencies using fake object which is generated automatically by SpryKit.
• "FakeDBManager" - how to create fake objects for tests.