Vitest

---

mergePreset

Merges additional Vitest options into the skuba preset.

This concatenates array options like test.coverage.exclude.

The preset includes a reporter that creates a skuba/test check run per Vitest project. Test failures are annotated against the offending lines, so they appear in the Checks and Files changed tabs of a pull request.

The reporter does nothing unless it is running in CI with a GITHUB_API_TOKEN or GITHUB_TOKEN on the environment, so local test runs are unaffected.

As test.reporters is an array option, your own reporters are concatenated onto the preset’s rather than replacing them. Pass --reporter to skuba test if you need to override the list outright.

// vitest.config.ts

import { Vitest } from 'skuba';
import { defineConfig } from 'vitest/config';

export default defineConfig(
  Vitest.mergePreset({
    ssr: {
      resolve: {
        conditions: ['@seek/my-service/source'],
      },
    },
    test: {
      env: {
        ENVIRONMENT: 'test',
      },
      coverage: {
        thresholds: {
          branches: 100,
          functions: 100,
          lines: 100,
          statements: 100,
        },
        exclude: ['src/other-test-utils'],
      },
    },
  }),
);