vscode-vitest-runner

Run a single Vitest case from VS Code, debug it, or loop it N times to hunt flakiness — all from real terminals.

Forked from kwai-explore/vscode-vitest-runner

Features

• Run test at cursor (opens a fresh integrated terminal).
• Debug test with Node debugger (integrated terminal).
• Run ×N (loop) to detect flaky tests; shows per-run header and a final summary.
• Uses the workspace folder as cwd for correct module resolution.

Platform: POSIX shells only (macOS/Linux). Windows PowerShell/CMD not supported in this fork.

Usage

1. Open a test file in VS Code.

2. Place your cursor in the test you want to run (or select its name).

3. Use the Command Palette and choose:

   • Vitest Runner: Run
   • Vitest Runner: Debug
   • Vitest Runner: Run ×N

4. Each action opens a new terminal so runs don’t stomp each other.

Settings

Add any of these to your workspace settings:

{
  // Extra args to pass to Vitest on every run
  "vitestRunner.extraArgs": ["--pool=threads"],

  // How many iterations for "Run ×N"
  "vitestRunner.loopCount": 20
}

Examples

• Run a single named test with extra args:

  { "vitestRunner.extraArgs": ["--reporter=verbose"] }
  

Known limitations

• Windows shells aren’t supported in this fork.
• “Run ×N” uses real terminals; if you start multiple loops, each gets its own terminal.

Credits

Heavily based on the excellent work in the original kwai-explore/vscode-vitest-runner.