Files
cypress/cli/test/lib/exec/spawn_spec.ts
Bill Glesias 3481d1acaf chore: refactor cypress/cli to TypeScript (#32063)
* migrate cli scripts to TypeScript

* convert all javascript source files in the CLI to TypeScript

rebase into first

* chore: refactor all tests to TypeScript

rebase into second

* add npmignore for cli for typescript files

* update build process

* fix publically available exports

* Fix cy-in-cy tests

* add ts-expect-error to failing files

* fix projectConfigIpc failures as there are now multiple installs of tsx

* fix after-pack hook

* fix binary script

* chore: update publish binary to account for CLI being an ESModule compiled down to CommonJS

* does this work?

* fix the verify spec by making the listr2 renderer silent as it behaves differently since the refactor and is printing non deterministic outputs into our tests that do not have a large impact on the area we are testing and mostly served to actually test the renders of the listr2 framework itself

* empty commit

* additional refactor to code to remove strange any typing and exporting

* bump cache and build binaries

* fix CLI exports to keep backwards compatibility

* fix unit-tests

* turn on mac jobs

* fix group name rename in CLI

* remove babel deps from cli and explicitly install typescript

* address feedback from code review

* dont just falsy check results and instead explicitly check for null or undefined

* add ts-expect-error

* additional pass on cleaning up dynamic require / import from global lib references

* annotate ts-expect-errors with reason for why error is expected

* add rest of ts-expect-error comments

* removing hardcoded branch to publish binary chore/migrate_cli_to_typescript
2025-09-02 17:52:45 -04:00

526 lines
16 KiB
TypeScript

import '../../spec_helper'
import cp from 'child_process'
import os from 'os'
import tty from 'tty'
import path from 'path'
import { EventEmitter as EE } from 'events'
import mockedEnv from 'mocked-env'
import readline from 'readline'
import createDebug from 'debug'
import snapshot from '../../support/snapshot'
import state from '../../../lib/tasks/state'
import xvfb from '../../../lib/exec/xvfb'
import spawn from '../../../lib/exec/spawn'
import verify from '../../../lib/tasks/verify'
import util from '../../../lib/util'
const debug = createDebug('test')
const cwd = process.cwd()
const execPath = process.execPath
const nodeVersion = process.versions.node
const defaultBinaryDir = '/default/binary/dir'
let mockReadlineEE: any
describe('lib/exec/spawn', function () {
beforeEach(function () {
(os.platform as any).returns('darwin')
sinon.stub(process, 'exit')
;(this as any).spawnedProcess = {
on: sinon.stub().returns(undefined),
unref: sinon.stub().returns(undefined),
stdin: {
on: sinon.stub().returns(undefined),
pipe: sinon.stub().returns(undefined),
},
stdout: {
on: sinon.stub().returns(undefined),
pipe: sinon.stub().returns(undefined),
},
stderr: {
pipe: sinon.stub().returns(undefined),
on: sinon.stub().returns(undefined),
},
kill: sinon.stub(),
// expected by sinon
cancel: sinon.stub(),
}
// process.stdin is both an event emitter and a readable stream
;(this as any).processStdin = new EE()
mockReadlineEE = new EE()
;(this as any).processStdin.pipe = sinon.stub().returns(undefined)
sinon.stub(process, 'stdin').value((this as any).processStdin)
sinon.stub(readline, 'createInterface').returns(mockReadlineEE)
sinon.stub(cp, 'spawn').returns((this as any).spawnedProcess)
sinon.stub(xvfb, 'start').resolves()
sinon.stub(xvfb, 'stop').resolves()
sinon.stub(xvfb, 'isNeeded').returns(false)
sinon.stub(state, 'getBinaryDir').returns(defaultBinaryDir)
sinon.stub(state, 'getPathToExecutable').withArgs(defaultBinaryDir).returns('/path/to/cypress')
})
context('.start', function () {
// ️️⚠️ NOTE ⚠️
// when asserting the calls made to spawn the child Cypress process
// we have to be _very_ careful. Spawn uses process.env object, if an assertion
// fails, it will print the entire process.env object to the logs, which
// might contain sensitive environment variables. Think about what the
// failed assertion might print to the public CI logs and limit
// the environment variables when running tests on CI.
it('passes args + options to spawn', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(verify, 'needsSandbox').returns(false)
return spawn.start('--foo', { foo: 'bar' })
.then(() => {
expect(cp.spawn).to.be.calledWithMatch('/path/to/cypress', [
'--',
'--foo',
'--cwd',
cwd,
'--userNodePath',
execPath,
'--userNodeVersion',
nodeVersion,
], {
detached: false,
stdio: ['inherit', 'inherit', 'pipe'],
})
})
})
it('uses --no-sandbox when needed', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(verify, 'needsSandbox').returns(true)
return spawn.start('--foo', { foo: 'bar' })
.then(() => {
// skip the options argument: we do not need anything about it
// and also less risk that a failed assertion would dump the
// entire ENV object with possible sensitive variables
const args = (cp.spawn as any).firstCall.args.slice(0, 2)
// it is important for "--no-sandbox" to appear before "--" separator
const expectedCliArgs = [
'--no-sandbox',
'--',
'--foo',
'--cwd',
cwd,
'--userNodePath',
execPath,
'--userNodeVersion',
nodeVersion,
]
expect(args).to.deep.equal(['/path/to/cypress', expectedCliArgs])
})
})
it('uses npm command when running in dev mode', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(verify, 'needsSandbox').returns(false)
const p = path.resolve('..', 'scripts', 'start.js')
return spawn.start('--foo', { dev: true, foo: 'bar' })
.then(() => {
expect(cp.spawn).to.be.calledWithMatch('node', [
p,
'--',
'--foo',
'--cwd',
cwd,
'--userNodePath',
execPath,
'--userNodeVersion',
nodeVersion,
], {
detached: false,
stdio: ['inherit', 'inherit', 'pipe'],
})
})
})
it('does not pass --no-sandbox when running in dev mode', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(verify, 'needsSandbox').returns(true)
const p = path.resolve('..', 'scripts', 'start.js')
return spawn.start('--foo', { dev: true, foo: 'bar' })
.then(() => {
expect(cp.spawn).to.be.calledWithMatch('node', [
p,
'--',
'--foo',
'--cwd',
cwd,
'--userNodePath',
execPath,
'--userNodeVersion',
nodeVersion,
], {
detached: false,
stdio: ['inherit', 'inherit', 'pipe'],
})
})
})
it('starts xvfb when needed', function () {
(xvfb.isNeeded as any).returns(true)
;(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
return spawn.start('--foo')
.then(() => {
expect(xvfb.start).to.be.calledOnce
})
})
context('closes', function () {
['close', 'exit'].forEach((event) => {
it(`if '${event}' event fired`, function () {
(this as any).spawnedProcess.on.withArgs(event).yieldsAsync(0)
return spawn.start('--foo')
})
})
it('if exit event fired and close event fired', function () {
(this as any).spawnedProcess.on.withArgs('exit').yieldsAsync(0)
;(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
return spawn.start('--foo')
})
})
context('detects kill signal', function () {
it('exits with error on SIGKILL', function () {
(this as any).spawnedProcess.on.withArgs('exit').yieldsAsync(null, 'SIGKILL')
return spawn.start('--foo')
.then(() => {
throw new Error('should have hit error handler but did not')
}, (e: any) => {
debug('error message', e.message)
snapshot(e.message)
})
})
})
it('does not start xvfb when its not needed', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
return spawn.start('--foo')
.then(() => {
expect(xvfb.start).not.to.be.called
})
})
it('stops xvfb when spawn closes', function () {
(xvfb.isNeeded as any).returns(true)
;(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(this as any).spawnedProcess.on.withArgs('close').yields()
return spawn.start('--foo')
.then(() => {
expect(xvfb.stop).to.be.calledOnce
})
})
it('resolves with spawned close code in the message', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(10)
return spawn.start('--foo')
.then((code: any) => {
expect(code).to.equal(10)
})
})
describe('Linux display', () => {
let restore: any
beforeEach(() => {
restore = mockedEnv({
DISPLAY: 'test-display',
})
})
afterEach(() => {
restore()
})
it('retries with xvfb if fails with display exit code', function () {
(this as any).spawnedProcess.on.withArgs('close').onFirstCall().yieldsAsync(1)
;(this as any).spawnedProcess.on.withArgs('close').onSecondCall().yieldsAsync(0)
const buf1 = '[some noise here] Gtk: cannot open display: 987'
;(this as any).spawnedProcess.stderr.on
.withArgs('data')
.yields(buf1)
;(os.platform as any).returns('linux')
return spawn.start('--foo')
.then((code: any) => {
expect(xvfb.start).to.have.been.calledOnce
expect(xvfb.stop).to.have.been.calledOnce
expect(cp.spawn).to.have.been.calledTwice
// second code should be 0 after successfully running with Xvfb
expect(code).to.equal(0)
})
})
})
it('rejects with error from spawn', function () {
const msg = 'the error message'
;(this as any).spawnedProcess.on.withArgs('error').yieldsAsync(new Error(msg))
return spawn.start('--foo')
.then(() => {
throw new Error('should have hit error handler but did not')
}, (e: any) => {
debug('error message', e.message)
expect(e.message).to.include(msg)
})
})
it('unrefs if options.detached is true', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
return spawn.start(null, { detached: true })
.then(() => {
expect((this as any).spawnedProcess.unref).to.be.calledOnce
})
})
it('does not unref by default', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((this as any).spawnedProcess.unref).not.to.be.called
})
})
it('sets process.env to options.env', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
process.env.FOO = 'bar'
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((cp.spawn as any).firstCall.args[2].env.FOO).to.eq('bar')
})
})
it('forces colors and streams when supported', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(util, 'supportsColor').returns(true)
sinon.stub(tty, 'isatty').returns(true)
return spawn.start([], { env: {} })
.then(() => {
snapshot((cp.spawn as any).firstCall.args[2].env)
})
})
it('sets windowsHide:false property in windows', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(os.platform as any).returns('win32')
return spawn.start([], { env: {} })
.then(() => {
expect((cp.spawn as any).firstCall.args[2].windowsHide).to.be.false
})
})
it('propagates treeKill if SIGINT is detected in windows console', async function () {
(this as any).spawnedProcess.pid = 7
;(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(os.platform as any).returns('win32')
const treeKillMock = sinon.stub().returns(0)
const proxyquire = await import('proxyquire')
const spawn = proxyquire.default(`../../../lib/exec/spawn`, { 'tree-kill': treeKillMock }).default
await spawn.start([], { env: {} })
mockReadlineEE.emit('SIGINT')
// since the import of tree-kill is async inside spawn, we need to wait for it to be imported and called
await new Promise<void>((resolve) => {
setTimeout(resolve)
})
expect(treeKillMock).to.have.been.calledWith(7, 'SIGINT')
})
it('does not set windowsHide property when in darwin', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
return spawn.start([], { env: {} })
.then(() => {
expect((cp.spawn as any).firstCall.args[2].windowsHide).to.be.undefined
})
})
it('does not force colors and streams when not supported', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(util, 'supportsColor').returns(false)
sinon.stub(tty, 'isatty').returns(false)
return spawn.start([], { env: {} })
.then(() => {
snapshot((cp.spawn as any).firstCall.args[2].env)
})
})
it('pipes when on win32', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(os.platform as any).returns('win32')
;(xvfb.isNeeded as any).returns(false)
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((cp.spawn as any).firstCall.args[2].stdio).to.deep.eq('pipe')
// parent process STDIN was piped to child process STDIN
expect((this as any).processStdin.pipe, 'process.stdin').to.have.been.calledOnce
.and.to.have.been.calledWith((this as any).spawnedProcess.stdin)
})
})
it('inherits when on linux and xvfb isn\'t needed', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(os.platform as any).returns('linux')
;(xvfb.isNeeded as any).returns(false)
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((cp.spawn as any).firstCall.args[2].stdio).to.deep.eq('inherit')
})
})
it('uses [inherit, inherit, pipe] when linux and xvfb is needed', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(xvfb.isNeeded as any).returns(true)
;(os.platform as any).returns('linux')
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((cp.spawn as any).firstCall.args[2].stdio).to.deep.eq([
'inherit', 'inherit', 'pipe',
])
})
})
it('uses [inherit, inherit, pipe] on darwin', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
;(xvfb.isNeeded as any).returns(false)
;(os.platform as any).returns('darwin')
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
expect((cp.spawn as any).firstCall.args[2].stdio).to.deep.eq([
'inherit', 'inherit', 'pipe',
])
})
})
it('writes everything on win32', function () {
const buf1 = Buffer.from('asdf')
;(this as any).spawnedProcess.stdin.pipe.withArgs(process.stdin)
;(this as any).spawnedProcess.stdout.pipe.withArgs(process.stdout)
;(this as any).spawnedProcess.stderr.on
.withArgs('data')
.yields(buf1)
;(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
sinon.stub(process.stderr, 'write').withArgs(buf1)
;(os.platform as any).returns('win32')
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
})
// https://github.com/cypress-io/cypress/issues/1841
// https://github.com/cypress-io/cypress/issues/5241
;['EPIPE', 'ENOTCONN'].forEach((errCode) => {
it(`catches process.stdin errors and returns when code=${errCode}`, function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
let called = false
const fn = () => {
called = true
const err: any = new Error()
err.code = errCode
return process.stdin.emit('error', err)
}
expect(fn).not.to.throw()
expect(called).to.be.true
})
})
})
it('throws process.stdin errors code!=EPIPE', function () {
(this as any).spawnedProcess.on.withArgs('close').yieldsAsync(0)
// @ts-expect-error - invalid number of arguments for given type
return spawn.start()
.then(() => {
const fn = () => {
const err: any = new Error('wattttt')
err.code = 'FAILWHALE'
return process.stdin.emit('error', err)
}
expect(fn).to.throw(/wattttt/)
})
})
})
})