Goverage – Inline Go Code Coverage Hints for VS Code

Goverage is a VS Code extension that displays inline code coverage hints for Go files, based on the go test -coverprofile report.
It helps visualize how well your Go functions and files are covered by tests.

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✨ Features

• ✅ File-level coverage: shown above the package line.
• ✅ Function-level coverage: shown above each func declaration.
• ✅ Parses coverage.out generated by go test -coverpkg=./... -coverprofile=coverage.out.
• ✅ Updates automatically when coverage.out is saved or opened.
• ✅ Supports both unit and integration tests.

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📦 Installation

✅ From VS Code Marketplace

👉 Install from Visual Studio Marketplace

1. Open VS Code.
2. Go to Extensions (Ctrl+Shift+X) and search for Goverage.
3. Click Install.

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🛠 Manual Installation

1. Clone this repository and build the extension:

   npm install
   npm run compile

2. Package it:

   vsce package

3. Install the .vsix file in VS Code:

   code --install-extension goverage-vscode-0.1.0.vsix
   

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🚀 Usage

1. Generate the coverage report:

   go test -coverpkg=./... -coverprofile=coverage.out

2. Open any .go file in your project.

3. You’ll see inline hints like:

   File Coverage: 91.75%
   Function Coverage: 85.00%
   

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🛠️ Notes

• Coverage uses Go’s coverprofile format.
• Calculations are based on statements covered, not lines.
• The extension reads the go.mod file to resolve the module name for path matching.
• Monorepo support assumes coverage.out and go test are run per-module.
• Integration tests may not mark functions as covered unless directly invoked.

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📄 License

MIT