474 lines
22 KiB
TypeScript
474 lines
22 KiB
TypeScript
/**
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* Real-process tests for `@deepseek-ai/dsh-pwsh-local`: the LOCAL subprocess
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* service plus a REAL pwsh executable, exercised through the executor seam
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* (`resolve` → `run`/`start`). These verify the world — actual PowerShell
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* runs, output capture, truncation and spill, deadlines, kill escalation, and
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* the background-handle contract. The suite self-skips when no usable `pwsh`
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* resolves (a CI accommodation for hosts without PowerShell); the pure unit tests
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* (config validation, executable resolution) run on every platform. PowerShell
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* writes CRLF on Windows, so exact text assertions normalize line endings.
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*/
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import { mkdirSync, mkdtempSync, realpathSync, writeFileSync } from 'node:fs'
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import { tmpdir } from 'node:os'
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import { join } from 'node:path'
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import { spawnSync } from 'node:child_process'
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import { describe, expect, it } from 'vitest'
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import { Context } from '@deepseek-ai/cordis'
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import { PwshLocalExecutor, ENCODING_PREAMBLE, candidatePwshPaths, resolvePwshPath } from '@deepseek-ai/dsh-pwsh-local'
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import LocalSubprocessService from '@deepseek-ai/dsh-subprocess-local'
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import SubprocessService from '@deepseek-ai/dsh-subprocess'
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import type { SubprocessHandle, SubprocessOutputReader, SubprocessSpawnSpec } from '@deepseek-ai/dsh-subprocess'
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import { MAX_TIMER_DELAY_MS } from '@deepseek-ai/dsh-timeout'
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import type { BashProcess } from '@deepseek-ai/dsh-bash'
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const spillDir = mkdtempSync(join(tmpdir(), 'dsh-pwsh-exec-spec-'))
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// The probe follows the executor's own resolution (Program Files installs on
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// Windows are found even when bare `pwsh` is not on PATH).
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const hasPwsh = spawnSync(resolvePwshPath(), ['-NoLogo', '-NoProfile', '-NonInteractive', '-Command', '$true'], { encoding: 'utf8' }).status === 0
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/** Normalize PowerShell's platform line endings (CRLF on Windows, LF elsewhere). */
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const lf = (text: string): string => text.replace(/\r\n/g, '\n')
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/** Filesystem path equality across macOS temp symlinks and Windows drive-letter casing. */
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function samePath(actual: string, expected: string): boolean {
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const norm = (value: string) => (
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process.platform === 'win32' ? realpathSync.native(value).toLowerCase() : realpathSync.native(value)
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)
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return norm(actual) === norm(expected)
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}
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async function setup(config: ConstructorParameters<typeof PwshLocalExecutor>[1] = {}) {
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const ctx = new Context()
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await ctx.plugin(LocalSubprocessService)
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;(ctx.subprocess as LocalSubprocessService).internals = { spillDir }
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// A short kill grace via the REAL config path, so escalation tests stay fast.
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await ctx.plugin(PwshLocalExecutor, { graceMs: 200, ...config })
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const bash = ctx.bash as PwshLocalExecutor
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return { ctx, bash }
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}
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/**
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* Poll a handle's consuming readOutput until the ACCUMULATED delta contains
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* `expected`; returns the accumulation (reads never re-deliver, so the caller
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* gets everything produced up to the match).
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*/
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async function readUntil(proc: BashProcess, expected: string, timeoutMs = 5_000): Promise<string> {
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const deadline = Date.now() + timeoutMs
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let all = ''
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while (Date.now() < deadline) {
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all += proc.readOutput().delta
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if (lf(all).includes(expected)) return lf(all)
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await new Promise(resolve => setTimeout(resolve, 20))
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}
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throw new Error(`process output did not include ${JSON.stringify(expected)}; accumulated ${JSON.stringify(lf(all))}`)
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}
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describe('resolvePwshPath and candidatePwshPaths (pure, every platform)', () => {
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it('trusts an explicit configured path verbatim', () => {
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expect(resolvePwshPath('C:\\custom\\pwsh.exe')).toBe('C:\\custom\\pwsh.exe')
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expect(resolvePwshPath('pwsh')).toBe('pwsh')
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})
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it('falls through an empty configured path to platform resolution', () => {
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// SystemRoot points at a non-existent tree so the Windows PowerShell 5.1
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// fallback candidate cannot exist either.
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expect(resolvePwshPath('', {
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PATH: 'P:\\Store',
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ProgramFiles: 'P:\\no-program-files',
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SystemRoot: 'S:\\no-windows',
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}, 'win32')).toBe('pwsh')
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})
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it('returns pwsh on non-Windows platforms regardless of the environment', () => {
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expect(resolvePwshPath(undefined, { ProgramFiles: 'P:\\Program Files' }, 'linux')).toBe('pwsh')
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expect(resolvePwshPath(undefined, { PATH: 'P:\\Store' }, 'darwin')).toBe('pwsh')
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})
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it('uses stable Windows roots when the environment omits both overrides', () => {
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expect(candidatePwshPaths({})).toEqual([
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join('C:\\Program Files', 'PowerShell', '7', 'pwsh.exe'),
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join('C:\\Windows', 'System32', 'WindowsPowerShell', 'v1.0', 'powershell.exe'),
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])
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})
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it('lists PowerShell 7, PATH entries (quotes stripped), then Windows PowerShell 5.1 on win32', () => {
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const candidates = candidatePwshPaths({
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ProgramFiles: 'P:\\Program Files',
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SystemRoot: 'S:\\Windows',
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PATH: ';"Q:\\quoted store";' + ';',
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})
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expect(candidates).toEqual([
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join('P:\\Program Files', 'PowerShell', '7', 'pwsh.exe'),
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join('Q:\\quoted store', 'pwsh.exe'),
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join('S:\\Windows', 'System32', 'WindowsPowerShell', 'v1.0', 'powershell.exe'),
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])
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// A missing PATH contributes no entries (the empty-string fallback).
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expect(candidatePwshPaths({ ProgramFiles: 'P:\\Program Files', SystemRoot: 'S:\\Windows' }))
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.toEqual([
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join('P:\\Program Files', 'PowerShell', '7', 'pwsh.exe'),
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join('S:\\Windows', 'System32', 'WindowsPowerShell', 'v1.0', 'powershell.exe'),
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])
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})
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it('returns the first EXISTING win32 candidate, else pwsh', () => {
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const dir = mkdtempSync(join(tmpdir(), 'dsh-pwsh-resolve-'))
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const store = join(dir, 'store')
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mkdirSync(store, { recursive: true })
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writeFileSync(join(store, 'pwsh.exe'), '')
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// The existing PATH entry wins over the non-existent Program Files install.
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expect(resolvePwshPath(undefined, { ProgramFiles: join(dir, 'missing'), PATH: store }, 'win32'))
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.toBe(join(store, 'pwsh.exe'))
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// No candidate exists anywhere (SystemRoot points at a non-existent tree,
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// so even the Windows PowerShell 5.1 fallback cannot exist) → the
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// PATH-resolution fallback.
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expect(resolvePwshPath(undefined, { ProgramFiles: join(dir, 'missing'), PATH: join(dir, 'empty'), SystemRoot: join(dir, 'no-windows') }, 'win32'))
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.toBe('pwsh')
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})
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})
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describe('spawn construction (pure, every platform)', () => {
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/** A subprocess service that records spawn specs and settles instantly. */
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class CapturingSubprocessService extends SubprocessService {
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specs: SubprocessSpawnSpec[] = []
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override async resolveExecutable(command: string): Promise<string> { return command }
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override spawnTerminal(): Promise<never> { throw new Error('pwsh spawns pipes, never terminals') }
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private readonly reader: SubprocessOutputReader = {
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readFrom: () => ({ text: '', lossy: false, nextOffset: 0 }),
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}
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override spawn(spec: SubprocessSpawnSpec): SubprocessHandle {
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this.specs.push(spec)
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return {
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pid: -1,
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stdin: undefined,
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stdout: undefined,
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stderr: undefined,
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collected: { stdout: this.reader, stderr: this.reader },
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done: Promise.resolve({ exitCode: 0, signal: null }),
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terminate: () => {},
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waitForExit: async () => true,
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}
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}
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}
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it('runs every command as ONE argv element under the UTF-8 encoding preamble', async () => {
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const ctx = new Context()
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const subprocess = new CapturingSubprocessService(ctx)
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await ctx.plugin(PwshLocalExecutor)
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await ctx.bash.run(ctx.bash.resolve({ command: 'Write-Output 你好' }))
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expect(subprocess.specs).toHaveLength(1)
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const { argv } = subprocess.specs[0]!
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expect(argv.slice(0, 5)).toEqual([expect.any(String), '-NoLogo', '-NoProfile', '-NonInteractive', '-Command'])
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expect(argv[5]).toBe(`${ENCODING_PREAMBLE}Write-Output 你好`)
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expect(ENCODING_PREAMBLE).toContain('[Console]::OutputEncoding')
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expect(ENCODING_PREAMBLE).toContain('$OutputEncoding')
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})
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})
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describe.skipIf(!hasPwsh)('PwshLocalExecutor.run', () => {
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it('resolves with output and the effective timeout', { timeout: 15_000 }, async () => {
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const { bash } = await setup({ timeoutMs: 10_000 })
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const result = await bash.run(bash.resolve({ command: 'Write-Output hi' }))
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expect(result.exitCode).toBe(0)
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expect(lf(result.stdout.text)).toBe('hi\n')
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expect(result.timeoutMs).toBe(10_000)
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})
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it('uses config cwd, overridable per call', async () => {
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const first = mkdtempSync(join(tmpdir(), 'dsh-pwsh-cwd-a-'))
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const second = mkdtempSync(join(tmpdir(), 'dsh-pwsh-cwd-b-'))
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const { bash } = await setup({ cwd: first })
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const fromConfig = await bash.run(bash.resolve({ command: '(Get-Location).Path' }))
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expect(samePath(fromConfig.stdout.text.trim(), first)).toBe(true)
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const fromCall = await bash.run(bash.resolve({ command: '(Get-Location).Path', workdir: second }))
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expect(samePath(fromCall.stdout.text.trim(), second)).toBe(true)
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})
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it('defaults cwd to process.cwd()', async () => {
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const { bash } = await setup()
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const result = await bash.run(bash.resolve({ command: '(Get-Location).Path' }))
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expect(samePath(result.stdout.text.trim(), process.cwd())).toBe(true)
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})
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it('caps per-call timeouts at maxTimeoutMs', async () => {
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const { bash } = await setup({ timeoutMs: 1_000, maxTimeoutMs: 2_000 })
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const result = await bash.run(bash.resolve({ command: 'Write-Output ok', timeoutMs: 99_999 }))
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expect(result.timeoutMs).toBe(2_000)
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})
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it('rejects invalid numeric config and timeout overrides', async () => {
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await expect(setup({ timeoutMs: Number.NaN })).rejects.toThrow(/timeoutMs/)
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await expect(setup({ maxTimeoutMs: 0 })).rejects.toThrow(/maxTimeoutMs/)
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await expect(setup({ maxOutputBytes: -1 })).rejects.toThrow(/maxOutputBytes/)
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await expect(setup({ maxSpillBytes: 0 })).rejects.toThrow(/maxSpillBytes/)
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await expect(setup({ graceMs: 0 })).rejects.toThrow(/graceMs/)
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await expect(setup({ graceMs: MAX_TIMER_DELAY_MS + 1 }))
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.rejects.toThrow(`graceMs must be no greater than ${MAX_TIMER_DELAY_MS}`)
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const { bash } = await setup()
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expect(() => bash.resolve({ command: 'Write-Output ok', timeoutMs: Number.NaN })).toThrow(/request\.timeoutMs/)
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expect(() => bash.resolve({ command: 'Write-Output ok', timeoutMs: -1 })).toThrow(/request\.timeoutMs/)
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expect(() => bash.resolve({ command: 'Write-Output ok', stdoutMaxBytes: Number.NaN })).toThrow(/request\.stdoutMaxBytes/)
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expect(() => bash.resolve({ command: 'Write-Output ok', stdoutMaxBytes: -1 })).toThrow(/request\.stdoutMaxBytes/)
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})
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it('defaults stdoutMaxBytes to maxOutputBytes and lets foreground callers raise stdout only', async () => {
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const { bash } = await setup({ maxOutputBytes: 100 })
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expect(bash.resolve({ command: 'Write-Output ok' }).stdoutMaxBytes).toBe(100)
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// Raw Console writes avoid PowerShell's own line-ending and formatting
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// layers, so the byte counts are exact on every platform.
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const result = await bash.run(bash.resolve({
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command: '[Console]::Out.Write("x" * 500); [Console]::Error.WriteLine("e" * 500)',
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stdoutMaxBytes: 500,
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}))
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expect(result.stdout.text).toBe('x'.repeat(500))
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expect(result.stdout.truncated).toBe(false)
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expect(result.stderr.truncated).toBe(true)
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expect(result.stderr.text.length).toBeLessThanOrEqual(100)
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})
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it('per-call timeout takes precedence under the cap and kills on expiry', async () => {
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const { bash } = await setup({ timeoutMs: 60_000 })
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const result = await bash.run(bash.resolve({ command: 'Start-Sleep -Seconds 60', timeoutMs: 100 }))
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expect(result.timedOut).toBe(true)
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// Mutually exclusive: a timeout classifies as timedOut, never also aborted.
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expect(result.aborted).toBe(false)
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expect(result.timeoutMs).toBe(100)
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})
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it('propagates abort signals', async () => {
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const { bash } = await setup()
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const controller = new AbortController()
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const pending = bash.run(bash.resolve({ command: 'Start-Sleep -Seconds 60', signal: controller.signal }))
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setTimeout(() => { controller.abort() }, 50)
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const result = await pending
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expect(result.aborted).toBe(true)
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// Mutually exclusive: an upstream cancel classifies as aborted, never also timedOut.
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expect(result.timedOut).toBe(false)
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})
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it('classifies a self-killed command as neither timed out nor aborted', async () => {
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const { bash } = await setup({ timeoutMs: 60_000 })
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const result = await bash.run(bash.resolve({ command: 'Stop-Process -Id $PID' }))
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expect(result.timedOut).toBe(false)
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expect(result.aborted).toBe(false)
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// Windows reports a forced termination without a signal; POSIX reports the
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// terminating signal PowerShell chose (SIGTERM, or SIGKILL for the hard kill).
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if (process.platform === 'win32') {
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expect(result.signal).toBeNull()
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} else {
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expect(['SIGTERM', 'SIGKILL']).toContain(result.signal)
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}
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})
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it('rejects on spawn failure (bad workdir)', async () => {
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const { bash } = await setup()
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await expect(bash.run(bash.resolve({ command: 'Write-Output ok', workdir: '/nonexistent-dsh' }))).rejects.toThrow(/ENOENT/)
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})
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it('resolve() carries stdin/env/dshEnv onto the spec, and run() threads them to the command', async () => {
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const { bash } = await setup()
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const spec = bash.resolve({
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command: '$s = ([Console]::In.ReadToEnd()).TrimEnd(); Write-Output $s; Write-Output "[$env:SEAM_VAR][$env:DSH_SEAM_VAR]"',
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stdin: 'piped\n',
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env: { SEAM_VAR: 'env-ok' },
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dshEnv: { DSH_SEAM_VAR: 'dsh-ok' },
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})
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// resolve() keeps the optional input/environment fields verbatim.
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expect(spec.stdin).toBe('piped\n')
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expect(spec.env).toEqual({ SEAM_VAR: 'env-ok' })
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expect(spec.dshEnv).toEqual({ DSH_SEAM_VAR: 'dsh-ok' })
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const result = await bash.run(spec)
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expect(lf(result.stdout.text)).toBe('piped\n[env-ok][dsh-ok]\n')
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})
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it('resolve() omits stdin/env/dshEnv when the request supplies none', async () => {
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const { bash } = await setup()
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const spec = bash.resolve({ command: 'Write-Output ok' })
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expect('stdin' in spec).toBe(false)
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expect('env' in spec).toBe(false)
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expect('dshEnv' in spec).toBe(false)
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})
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})
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describe.skipIf(!hasPwsh)('PwshLocalExecutor.start (background process handles)', () => {
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it('start returns immediately with a running handle that settles as completed', async () => {
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const { bash } = await setup()
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const before = Date.now()
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const proc = bash.start(bash.resolve({ command: 'Start-Sleep -Milliseconds 200; Write-Output done' }))
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expect(Date.now() - before).toBeLessThan(150)
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expect(proc.status).toBe('running')
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await proc.done
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expect(proc.status).toBe('completed')
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expect(proc.exitCode).toBe(0)
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})
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it('threads stdin and extra env into a background process', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({
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command: '$s = ([Console]::In.ReadToEnd()).TrimEnd(); Write-Output $s; Write-Output "[$env:BG_VAR][$env:DSH_BG_VAR]"',
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stdin: 'bg-stdin\n',
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env: { BG_VAR: 'bg-env' },
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dshEnv: { DSH_BG_VAR: 'bg-dsh-env' },
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}))
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const partialOutput = await readUntil(proc, '[bg-env][bg-dsh-env]')
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await proc.done
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const output = partialOutput + lf(proc.readOutput().delta)
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expect(output).toBe('bg-stdin\n[bg-env][bg-dsh-env]\n')
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expect(proc.exitCode).toBe(0)
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})
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it('readOutput is consuming: increments are never re-delivered, and reads stay valid after exit', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: 'Write-Output first; Start-Sleep -Seconds 1; Write-Output second' }))
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const first = await readUntil(proc, 'first\n')
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expect(lf(first)).toBe('first\n')
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await proc.done
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// Read-after-exit returns the remaining buffered output — once.
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const second = proc.readOutput()
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expect(lf(second.delta)).toBe('second\n')
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expect(second.lossy).toBe(false)
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expect(proc.readOutput().delta).toBe('')
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})
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it('readOutput marks stderr sections', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: 'Write-Output out; [Console]::Error.WriteLine("err")' }))
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await proc.done
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expect(lf(proc.readOutput().delta)).toBe('out\n[stderr]\nerr\n')
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})
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it('readOutput reports stderr-only deltas without a leading newline', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: '[Console]::Error.WriteLine("err")' }))
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await proc.done
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expect(lf(proc.readOutput().delta)).toBe('[stderr]\nerr\n')
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})
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it('readOutput adds a separator only when stdout lacks a trailing newline', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: '[Console]::Out.Write("out"); [Console]::Error.WriteLine("err")' }))
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await proc.done
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expect(lf(proc.readOutput().delta)).toBe('out\n[stderr]\nerr\n')
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})
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it('readOutput flags lossy reads and reports stdout spill paths', async () => {
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const { bash } = await setup({ maxOutputBytes: 100 })
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const proc = bash.start(bash.resolve({ command: '1..100 | ForEach-Object { "line-$_" }' }))
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await proc.done
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const read = proc.readOutput()
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// Window slid past offset 0 → lossy, spill path points at the full stream.
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expect(read.lossy).toBe(true)
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expect(read.stdoutSpillPath).toBeDefined()
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})
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it('readOutput reports stderr spill paths', async () => {
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const { bash } = await setup({ maxOutputBytes: 100 })
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const proc = bash.start(bash.resolve({ command: '1..100 | ForEach-Object { [Console]::Error.WriteLine("line-$_") }' }))
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await proc.done
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const read = proc.readOutput()
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expect(read.lossy).toBe(true)
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expect(read.stderrSpillPath).toBeDefined()
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expect(lf(read.delta)).toContain('[stderr]')
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})
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it('kill() terminates the process tree: true once, false after settlement', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: 'Start-Sleep -Seconds 60' }))
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expect(proc.kill()).toBe(true)
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await proc.done
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expect(proc.status).toBe('killed')
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expect(proc.kill()).toBe(false)
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})
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it('kill() returns false for a naturally completed process', async () => {
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const { bash } = await setup()
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const proc = bash.start(bash.resolve({ command: 'Write-Output ok' }))
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await proc.done
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expect(proc.status).toBe('completed')
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expect(proc.kill()).toBe(false)
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})
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it('a spec.signal abort settles the handle as killed, not completed', async () => {
|
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const { bash } = await setup()
|
|
const controller = new AbortController()
|
|
const proc = bash.start(bash.resolve({ command: 'Start-Sleep -Seconds 60', signal: controller.signal }))
|
|
controller.abort()
|
|
await proc.done
|
|
expect(proc.status).toBe('killed')
|
|
})
|
|
|
|
it.skipIf(process.platform === 'win32')('a self-signal exit settles the handle as killed, not completed (POSIX)', async () => {
|
|
const { bash } = await setup()
|
|
const proc = bash.start(bash.resolve({ command: 'Stop-Process -Id $PID' }))
|
|
await proc.done
|
|
expect(proc.status).toBe('killed')
|
|
expect(proc.exitCode).toBeNull()
|
|
// PowerShell picks SIGTERM for Stop-Process, SIGKILL for the hard kill.
|
|
expect(['SIGTERM', 'SIGKILL']).toContain(proc.signal)
|
|
})
|
|
|
|
it('a background spawn failure settles as killed with the error readable on stderr', async () => {
|
|
const { bash } = await setup()
|
|
const proc = bash.start(bash.resolve({ command: 'Write-Output ok', workdir: '/nonexistent-dsh' }))
|
|
// done resolves (never rejects) even though the process never ran.
|
|
await expect(proc.done).resolves.toBeUndefined()
|
|
expect(proc.status).toBe('killed')
|
|
expect(proc.readOutput().delta).toContain('spawn failed:')
|
|
})
|
|
})
|
|
|
|
describe.skipIf(!hasPwsh)('process lifecycle ownership (the subprocess service, not the executor)', () => {
|
|
it('a background process survives executor-fiber disposal and dies with the subprocess service', async () => {
|
|
const ctx = new Context()
|
|
const managerFiber = await ctx.plugin(LocalSubprocessService)
|
|
;(ctx.subprocess as LocalSubprocessService).internals = { spillDir }
|
|
const executorFiber = await ctx.plugin(PwshLocalExecutor, { graceMs: 200 })
|
|
const bash = ctx.bash as PwshLocalExecutor
|
|
|
|
// The child prints its own pid so the test can probe liveness through the
|
|
// public read surface alone.
|
|
const proc = bash.start(bash.resolve({ command: 'Write-Output $PID; Start-Sleep -Seconds 60' }))
|
|
const pid = Number((await readUntil(proc, '\n')).trim())
|
|
expect(Number.isInteger(pid) && pid > 0).toBe(true)
|
|
|
|
// Executor reload/disposal leaves background work running — the
|
|
// handle stays live and readable, mirroring the task runtime's
|
|
// registrations-outlive-producer-fibers contract.
|
|
await executorFiber.dispose()
|
|
expect(proc.status).toBe('running')
|
|
expect(() => process.kill(pid, 0)).not.toThrow()
|
|
|
|
// Service disposal kills the group and AWAITS its exit (no orphans).
|
|
await managerFiber.dispose()
|
|
expect(() => process.kill(pid, 0)).toThrow()
|
|
await proc.done
|
|
// POSIX reports the kill as a signal; Windows reports a forced
|
|
// termination as exit 1 with no signal (indistinguishable from a crash),
|
|
// so the status stamp follows the platform's exit facts.
|
|
expect(proc.status).toBe(process.platform === 'win32' ? 'completed' : 'killed')
|
|
})
|
|
|
|
it('service disposal settles running handles and leaves settled ones untouched', async () => {
|
|
const ctx = new Context()
|
|
const managerFiber = await ctx.plugin(LocalSubprocessService)
|
|
;(ctx.subprocess as LocalSubprocessService).internals = { spillDir }
|
|
await ctx.plugin(PwshLocalExecutor, { graceMs: 200 })
|
|
const bash = ctx.bash as PwshLocalExecutor
|
|
|
|
const finished = bash.start(bash.resolve({ command: 'Write-Output done' }))
|
|
await finished.done
|
|
expect(finished.status).toBe('completed')
|
|
const running = bash.start(bash.resolve({ command: 'Start-Sleep -Seconds 60' }))
|
|
|
|
await managerFiber.dispose()
|
|
// A settled process was untouched; the live one was terminated and joined.
|
|
expect(finished.status).toBe('completed')
|
|
await running.done
|
|
expect(running.status).toBe(process.platform === 'win32' ? 'completed' : 'killed')
|
|
})
|
|
})
|