test: scripts preserve symlinks on Node.js >= 7.1.0

src/cmd/run.ts

@@ -2,7 +2,7 @@ import {PnpmOptions} from '../types'
 import {sync as runScriptSync} from '../runScript'
 
 export default function (input: string[], opts: PnpmOptions) {
-  runScriptSync('npm', ['run'].concat(input), {
+  return runScriptSync('npm', ['run'].concat(input), {
     cwd: process.cwd(),
     stdio: 'inherit',
   })

test/index.ts

@@ -5,3 +5,4 @@ import './uninstall'
 import './link'
 import './prune'
 import './cache'
+import './run'

test/packages/publish-all.sh

@@ -74,3 +74,7 @@ cd ..;
 cd sh-hello-world;
 npm publish;
 cd ..;
+
+cd symlinks-preserved;
+npm publish;
+cd ..;

test/packages/symlinks-preserved/index.js

@@ -0,0 +1,4 @@
+'use strict'
+const fs = require('fs')
+
+module.exports = fs.realpathSync(__filename) !== __filename

test/packages/symlinks-preserved/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "symlinks-preserved",
+  "version": "1.0.0"
+}

test/run.ts

@@ -0,0 +1,35 @@
+import tape = require('tape')
+import promisifyTape from 'tape-promise'
+const test = promisifyTape(tape)
+import semver = require('semver')
+import fs = require('mz/fs')
+import prepare from './support/prepare'
+import testDefaults from './support/testDefaults'
+import {installPkgs} from '../lib'
+import runCmd from '../lib/cmd/run'
+
+const preserveSymlinksEnvVariable = semver.satisfies(process.version, '>=7.1.0')
+
+test('run node in scripts with preserve symlinks mode', async function (t) {
+  if (!preserveSymlinksEnvVariable) {
+    t.skip('this test is only for Node.js >= 7.1.0')
+    return
+  }
+
+  prepare({
+    scripts: {
+      test: 'node index'
+    }
+  })
+
+  await fs.writeFile('index.js', `
+    const fs = require('fs')
+    const symlinksPreserved = require('symlinks-preserved')
+    fs.writeFileSync('test-result', symlinksPreserved, 'utf8')
+  `, 'utf8')
+
+  await installPkgs(['symlinks-preserved'], testDefaults())
+  const result = runCmd(['test'], {})
+  t.equal(result.status, 0, 'executable exited with success')
+  t.equal(await fs.readFile('test-result', 'utf8'), 'true', 'symlinks are preserved')
+})