---
currentMenu: testing-modules
---

# Using Multiple Modules For Testing

Testing a Vapor app gets tricky, and requires some maneuvering of your app targets.

## **Step 1:** Update Package.swift

To start, you need to split up your Vapor project into a target called `App`, and a target called `AppLogic`. The App module will only include a `main.swift`, and your `AppLogic` will contain the actual logic for the app.

```swift
import PackageDescription

let package = Package(
    name: “ProjectName”,
    targets: [
        Target(name: "App", dependencies: ["AppLogic"])
    ],
    dependencies: [
        .Package(url: "https://github.com/vapor/vapor.git", majorVersion: 1, minor: 3)
    ],
    exclude: [
        "Config",
        "Database",
        "Localization",
        "Public",
        "Resources"
    ]
)
```

## **Step 2:** Update Tests Folder

Make sure that your tests folder has a file called `LinuxMain.swift` and a folder called `AppLogicTests`. In your `AppLogicTests`, you can add your testing files like `UserTests.swift`.

As always, make sure that you regenerate with `vapor xcode -y`