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Run tests e2e against an npm pack && npm installed ts-node #1032

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May 11, 2020
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12 changes: 12 additions & 0 deletions package-lock.json

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3 changes: 2 additions & 1 deletion package.json
Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,8 @@
"tslint": "^6.1.0",
"tslint-config-standard": "^9.0.0",
"typescript": "^3.7.2",
"typescript-json-schema": "^0.42.0"
"typescript-json-schema": "^0.42.0",
"util.promisify": "^1.0.1"
},
"peerDependencies": {
"typescript": ">=2.7"
Expand Down
4 changes: 4 additions & 0 deletions src/externs.d.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
declare module 'util.promisify' {
const _export: typeof import('util').promisify
export = _export
}
34 changes: 27 additions & 7 deletions src/index.spec.ts
Original file line number Diff line number Diff line change
Expand Up @@ -5,16 +5,36 @@ import semver = require('semver')
import ts = require('typescript')
import proxyquire = require('proxyquire')
import { register, create, VERSION } from './index'
import { mkdtempSync, readdirSync, copyFileSync, rmdirSync, unlinkSync, existsSync, readFileSync, writeFileSync } from 'fs'
import * as promisify from 'util.promisify'

const execP = promisify(exec)

const ROOT_DIR = join(__dirname, '..')
const TEST_DIR = join(__dirname, '../tests')
const TARBALL_PATH = join(TEST_DIR, 'ts-node-packed.tgz')
const PROJECT = join(TEST_DIR, 'tsconfig.json')
const BIN_PATH = join(__dirname, '../dist/bin')
const BIN_SCRIPT_PATH = join(__dirname, '../dist/bin-script')
const BIN_PATH = join(TEST_DIR, 'node_modules/.bin/ts-node')
const BIN_SCRIPT_PATH = join(TEST_DIR, 'node_modules/.bin/ts-node-script')

const SOURCE_MAP_REGEXP = /\/\/# sourceMappingURL=data:application\/json;charset=utf\-8;base64,[\w\+]+=*$/

// Pack and install ts-node locally, necessary to test package "exports"
before(async function () {
this.timeout(30000)
const tempDir = mkdtempSync(join(TEST_DIR, 'tmp'))
await execP(`npm pack --ignore-scripts "${ROOT_DIR}"`, { cwd: tempDir })
const tarballPath = join(tempDir, readdirSync(tempDir)[0])
writeFileSync(TARBALL_PATH, readFileSync(tarballPath))
unlinkSync(tarballPath)
rmdirSync(tempDir)
await execP(`npm install`, { cwd: TEST_DIR })
const packageLockPath = join(TEST_DIR, 'package-lock.json')
existsSync(packageLockPath) && unlinkSync(packageLockPath)
})
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I wonder if these a way to do this outside of the test suite or possibly a separate set of tests? Either way this looks like a great start at coverage.

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I can definitely move the npm pack into our npm build. That would be better since it would npm pack using the same node and npm versions as we use to publish.

Are you thinking you want 2x sets of tests, one unit tests, the other doing these e2e-style tests against an npm install?

I thought about that but I wasn't sure how useful it'd be since the tests mostly look e2e-style already. Your call though, happy to split things out.

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Let's keep it how it is then, I don't have strong opinions either way but it's great to know you thought about this.


describe('ts-node', function () {
const cmd = `node "${BIN_PATH}" --project "${PROJECT}"`
const cmd = `"${BIN_PATH}" --project "${PROJECT}"`

this.timeout(10000)

Expand All @@ -35,7 +55,7 @@ describe('ts-node', function () {
})

it('should register via cli', function (done) {
exec(`node -r ../register hello-world.ts`, {
exec(`node -r ts-node/register hello-world.ts`, {
cwd: TEST_DIR
}, function (err, stdout) {
expect(err).to.equal(null)
Expand Down Expand Up @@ -73,7 +93,7 @@ describe('ts-node', function () {
})

it('should provide registered information on register', function (done) {
exec(`node -r ../register env.ts`, {
exec(`node -r ts-node/register env.ts`, {
cwd: TEST_DIR
}, function (err, stdout) {
expect(err).to.equal(null)
Expand Down Expand Up @@ -408,7 +428,7 @@ describe('ts-node', function () {
}

describe('should read ts-node options from tsconfig.json', function () {
const BIN_EXEC = `node "${join(__dirname, '../dist/bin')}" --project tests/tsconfig-options/tsconfig.json`
const BIN_EXEC = `"${BIN_PATH}" --project tests/tsconfig-options/tsconfig.json`

it('should override compiler options from env', function (done) {
exec(`${BIN_EXEC} tests/tsconfig-options/log-options.js`, {
Expand Down Expand Up @@ -481,7 +501,7 @@ describe('ts-node', function () {
})

it('should give ts error for invalid node_modules', function (done) {
exec(`${cmd} --compiler-host --skip-ignore tests/from-node-modules`, function (err, stdout) {
exec(`${cmd} --compiler-host --skip-ignore tests/from-node-modules/from-node-modules`, function (err, stdout) {
if (err === null) return done('Expected an error')

expect(err.message).to.contain('Unable to compile file from external library')
Expand Down
4 changes: 3 additions & 1 deletion tests/.gitignore
Original file line number Diff line number Diff line change
@@ -1 +1,3 @@
!node_modules/
!from-node-modules/node_modules/
package-lock.json
ts-node-packed.tgz
5 changes: 5 additions & 0 deletions tests/package.json
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
{
"dependencies": {
"ts-node": "file:ts-node-packed.tgz"
}
}