test: label native browser transport failures

tests/fixtures/public-safety-access/browser-operation-probe.tsadded+41-0

Changes to tests/fixtures/public-safety-access/browser-operation-probe.ts

		@@ -0,0 +1,41 @@
	1	+import assert from 'node:assert/strict'
	2	+import { closeSync, openSync, writeSync } from 'node:fs'
	3	+import { readFile } from 'node:fs/promises'
	4	+import { basename, join } from 'node:path'
	5	+import { startWorkspaceBrowser } from '../../helpers/workspace-browser'
	6	+import { requestWorkspaceControl } from '../../helpers/workspace-control'
	7	+
	8	+const root = process.cwd(), mode = process.env.BROWSER_PEER_MODE
	9	+assert(basename(root).startsWith('drone-incident-access-browser-operation-'))
	10	+const unwritable = process.env.BROWSER_OPERATION_UNWRITABLE_DIAGNOSTIC === 'true'
	11	+if (unwritable) {
	12	+ closeSync(2)
	13	+ assert.equal(openSync('/dev/null', 'r'), 2, 'Keep descriptor two reserved and read-only')
	14	+ assert.throws(() => writeSync(2, 'probe'), { code: 'EBADF' })
	15	+}
	16	+let browser: Awaited<ReturnType<typeof startWorkspaceBrowser>> | undefined
	17	+let caught: unknown
	18	+const began = performance.now()
	19	+try {
	20	+ browser = await startWorkspaceBrowser(root)
	21	+ if (mode?.startsWith('target-') || mode === 'page-socket') await browser.page('http://fixture.invalid/incidents')
	22	+ if (mode?.startsWith('control-')) {
	23	+ const port = (await readFile(join(root, 'browser-profile/DevToolsActivePort'), 'utf8')).split('\n')[0]
	24	+ const result = await requestWorkspaceControl({ url: `http://127.0.0.1:${port}`, control: 'synthetic-peer-control' }, 'status')
	25	+ assert.deepEqual(result, { ok: true })
	26	+ }
	27	+}
	28	+catch (error) { caught = error }
	29	+finally { await browser?.close() }
	30	+if (unwritable) assert.throws(() => writeSync(2, 'probe'), { code: 'EBADF' })
	31	+if (mode === 'ok' || mode === 'control-ok') assert.equal(caught, undefined)
	32	+else {
	33	+ assert(caught instanceof Error)
	34	+ if (mode?.endsWith('-socket')) { assert.equal(caught.name, 'Error'); assert.match(caught.message, /^Browser socket /) }
	35	+ else assert(['TimeoutError', 'AbortError'].includes(caught.name), 'Preserve the native abort exception instead of replacing it')
	36	+ assert(performance.now() - began >= 5000, 'Exercise the original five-second native fetch timeout')
	37	+}
	38	+const peer = Number(await readFile(join(root, 'peer.pid'), 'utf8'))
	39	+assert(Number.isSafeInteger(peer) && peer > 1)
	40	+assert.throws(() => process.kill(peer, 0), 'Owned peer must actually exit before files are removed')
	41	+console.log(JSON.stringify({ oracle: 'browser-operation-peer-result', mode, nativeError: caught instanceof Error ? caught.name : null, elapsedMs: performance.now() - began, peerReaped: true }))