@spaguettiscope/vitest-reporter

Vitest reporter for SpaguettiScope. Writes test results to .spasco/results/ in the native spasco format, readable by the SpascoConnector.

Installation

pnpm install -D @spaguettiscope/vitest-reporter

Usage

Add to your vitest.config.ts:

import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    reporters: ['default', '@spaguettiscope/vitest-reporter'],
  },
})

Options

Pass options as the second element of the reporter tuple:

reporters: [
  'default',
  [
    '@spaguettiscope/vitest-reporter',
    {
      workspaceRoot: '../..', // defaults to auto-detected monorepo root
      outputDir: '.spasco/results', // defaults to {workspaceRoot}/.spasco/results
    },
  ],
]

Monorepo Setup

In a monorepo with multiple test packages, add the reporter to each package's vitest config. The reporter auto-detects the workspace root (via pnpm-workspace.yaml, turbo.json, or package.json with workspaces) and writes all results to a shared .spasco/results/ directory at the workspace root.

For example, if you have:

• apps/admin/vitest.config.ts
• apps/web/vitest.config.ts
• packages/database/vitest.config.ts

Add the reporter to each one. spasco init will list all the configs that need updating.

How It Works

Each test run creates a timestamped directory under .spasco/results/ containing:

• meta.json — run metadata (vitest version, git info, timestamps, CI detection)
• results/{testCaseId}.json — one file per test case with name, status, duration, and inferred dimensions

The testCaseId is a deterministic hash of the source file + full test name, enabling deduplication across runs.