mirror of https://github.com/garrytan/gstack.git
54 lines
2.4 KiB
TypeScript
54 lines
2.4 KiB
TypeScript
/**
|
|
* Global test preload (Bun: `[test] preload` in bunfig.toml).
|
|
*
|
|
* Snapshots `process.env` once at preload time, then restores it after
|
|
* every test. Defends against the recurring pollution class where one
|
|
* test file mutates `process.env.PATH` / `HOME` / etc. and leaks into
|
|
* unrelated subsequent files in the same Bun process — surfaces as
|
|
* `Executable not found in $PATH: "bun"` or `Bun.which('bash')` returning
|
|
* null in tests that have no business touching env.
|
|
*
|
|
* `process.env = X` reassignment does work in Bun (it swaps the underlying
|
|
* proxy), but several test files use the broken pattern of
|
|
* `origEnv = {...process.env}` followed by per-test mutation without a
|
|
* matching restore inside try/finally. Centralizing the safety net here
|
|
* means new tests don't have to remember the dance, and the bug class
|
|
* stays dead.
|
|
*/
|
|
import { afterEach, beforeAll } from 'bun:test';
|
|
|
|
// Narrowly restore PATH after every test. Defends against the recurring
|
|
// pollution class where one test sets `process.env.PATH = '/test/bin:/usr/bin'`
|
|
// to exercise a scrubbed-env fixture and either forgets to restore or uses
|
|
// the broken `process.env = origEnv` reassignment, then a downstream test
|
|
// (security.test.ts > resolveBashBinary, pair-agent-tunnel-eval, or
|
|
// server-no-import-side-effects) sees the wrong PATH and either has
|
|
// `Bun.which('bash')` return null or `Bun.spawn(['bun', ...])` ENOENT.
|
|
//
|
|
// Deliberately narrow: snapshotting + restoring all of process.env breaks
|
|
// tests that legitimately set per-file env at module top-level (e.g.,
|
|
// domain-skills-storage.test.ts assigns `process.env.GSTACK_HOME` at
|
|
// import time so the loaded module reads the test sandbox path on first
|
|
// invocation — wiping that on afterEach would route reads at the user's
|
|
// real ~/.gstack and the test would assert on the wrong filesystem).
|
|
//
|
|
// If a future test pollutes a different variable in the same broken way,
|
|
// add it to RESTORE_KEYS rather than widening the snapshot scope.
|
|
const RESTORE_KEYS = ['PATH', 'Path'] as const;
|
|
const baseline: Record<string, string | undefined> = {};
|
|
|
|
beforeAll(() => {
|
|
for (const k of RESTORE_KEYS) baseline[k] = process.env[k];
|
|
});
|
|
|
|
afterEach(() => {
|
|
for (const k of RESTORE_KEYS) {
|
|
const want = baseline[k];
|
|
if (want === undefined) {
|
|
if (process.env[k] !== undefined) delete process.env[k];
|
|
} else if (process.env[k] !== want) {
|
|
process.env[k] = want;
|
|
}
|
|
}
|
|
});
|