@soll/bun

Bun test integration for soll — scope test runs to only affected files.

Prerequisites: Install soll and run soll diagnose --write in your project first.

Quick start

Install and add the preload script to your bunfig.toml:

npm install --save-dev @soll/bun

# bunfig.toml
[test]
preload = ["@soll/bun/preload"]

That's it. When you run bun test, soll intercepts test file loading and skips tests not affected by your changes.

How it works

The preload script hooks into Bun's plugin system. It builds the import graph once, computes the affected set from git diff, then replaces non-affected test files with empty modules at load time. Affected tests and all non-test dependencies pass through normally.

If the native addon or git isn't available, it falls back to running all tests.

Programmatic API

For custom integrations:

import { getAffectedTests } from "@soll/bun";

const result = getAffectedTests({
  root: process.cwd(),
  include: await glob("**/*.ts"),
  changedFiles: ["src/logger.ts"],
  tests: ["src/logger.test.ts", "src/app.test.ts"],
});

// result.affectedTestFiles → ["src/logger.test.ts"]

Development

pnpm install
pnpm --filter @marginallyuseful/soll-bun build
pnpm --filter @marginallyuseful/soll-bun typecheck