node:test: subtests, plan, mock timers, getTestContext (+11 tests)

.claude/skills/verify/SKILL.md

@@ -25,6 +25,12 @@ For worker/subprocess-shaped changes, spawn a subprocess (still `-e`) so worker
 
 ## Gotchas
 
+- **Prefix every `bun bd` with `PATH="$HOME/.cargo/bin:$PATH"`** — Homebrew's `rust`
+  formula shadows the pinned nightly, and `bun bd` dies with `the option 'Z' is only
+  accepted on the nightly compiler`. `bun bd` re-runs cargo on every invocation, so
+  this is needed for follow-up runs too, not just the first build.
 - `BUN_DEBUG_QUIET_LOGS=1` suppresses debug-build log spam.
+- Debug builds print `[cachefs]`/`[sys]` lines to stdout; filter them before diffing
+  output against `node`.
 - MessagePort's `.on/.off` are added by requiring `worker_threads` — plain `new MessageChannel()` ports only have `addEventListener` until then.
 - The debug+asan build is 10-100× slower than release; large-allocation stress tests can time out locally while passing in CI.

docs/runtime/nodejs-compat.mdx

@@ -177,7 +177,7 @@ This page is updated regularly and reflects the latest version of Bun's compatib
 
 ### [`node:test`](https://nodejs.org/api/test.html)
 
-🟡 Partially implemented. Missing `mock.module`, `mock.timers`, snapshots. Use [`bun:test`](/test) instead.
+🟡 Partially implemented. The in-process API works when test files run under `bun test`: tests, suites, subtests, hooks, `t.plan()`, `t.assert`, `assert.register()`, `t.waitFor()`, `getTestContext()`, and `t.mock` (function/method/getter/setter/property mocks and mock timers). Missing `run()`, `node:test/reporters`, snapshot testing, `mock.module()`, code coverage, `--test-only`, test-level `signal`/`t.signal` abort, and Node's `--test` CLI runner mode. `test.only()` / `{only: true}` are accepted but do not filter. `concurrency` is validated but subtests always run serially. Use [`bun:test`](/test) instead.
 
 ### [`node:trace_events`](https://nodejs.org/api/tracing.html)
 

src/codegen/generate-js2native.ts

@@ -66,6 +66,7 @@ const rustIdentifierPaths: Record<string, string> = {
   "ini.rs": "ini/ini.rs",
   "install_binding.rs": "install_jsc/install_binding.rs",
   "ipc.rs": "jsc/ipc.rs",
+  "jest.rs": "runtime/test_runner/jest.rs",
   "mysql.rs": "sql_jsc/mysql.rs",
   "napi_body.rs": "runtime/napi/napi_body.rs",
   "node_assert_binding.rs": "runtime/node/node_assert_binding.rs",