Task 3 - Repository

[lottejd]

Subtasks

3a

Implement a basic Repository class, it should be in Infra and contain the methods ProjectDependencyGraph? GetSnapshot() and void SetSnapshot(ProjectDependencyGraph snapshot). For now, GetSnapshot should always return null.

Acceptance criteria

• There is a Repository class
• There is a GetSnapshot method that returns null
• There is a SetSnapshot method that takes in a ProjectDependencyGraph and currently does nothing

3b

Use the previously implemented GetSnapshot in the UpdateGraphUseCase, such that it uses the repository snapshot if it is not null, otherwise calls the SnapshotManager

Acceptance criteria

• In UpdateGraphUseCase, GetSnapshot is called
• If GetSnapshot returns null, call SnapshotManager
• For testing reasons, it should be possible to run the use case without a repository