tests: check that preferGlobal is warning properly

PR-URL: npm#9409

test/tap/install-preferglobal-warnings.js

@@ -0,0 +1,131 @@
+var fs = require('graceful-fs')
+var path = require('path')
+
+var mkdirp = require('mkdirp')
+var osenv = require('osenv')
+var rimraf = require('rimraf')
+var test = require('tap').test
+
+var common = require('../common-tap.js')
+
+var preferGlobalJson = {
+  name: 'npm-test-preferglobal-dep',
+  version: '0.0.0',
+  preferGlobal: true
+}
+
+var dependenciesJson = {
+  name: 'npm-test-preferglobal-dependency-check',
+  version: '0.0.0',
+  dependencies: {
+    'npm-test-preferglobal-dep': 'file:../' + preferGlobalJson.name
+  }
+}
+
+var devDependenciesJson = {
+  name: 'npm-test-preferglobal-devDependency-check',
+  version: '0.0.0',
+  devDependencies: {
+    'npm-test-preferglobal-dep': 'file:../' + preferGlobalJson.name
+  }
+}
+
+var emptyPackage = {
+  name: 'npm-test-preferglobal-empty-package',
+  version: '0.0.0'
+}
+
+test('install a preferGlobal dependency without warning', function (t) {
+  setup(dependenciesJson)
+  common.npm([
+    'install',
+    '--loglevel=warn'
+  ], {}, function (err, code, stdout, stderr) {
+    t.ifError(err, 'packages were installed')
+    t.notMatch(
+      stderr,
+      /WARN.*prefer global/,
+      'install should not warn when dependency is preferGlobal')
+    t.end()
+  })
+})
+
+test('install a preferGlobal dependency without warning', function (t) {
+  setup(devDependenciesJson)
+  common.npm([
+    'install',
+    '--loglevel=warn'
+  ], {}, function (err, code, stdout, stderr) {
+    t.ifError(err, 'packages were installed')
+    t.notMatch(
+      stderr,
+      /WARN.*prefer global/,
+      'install should not warn when devDependency is preferGlobal')
+    t.end()
+  })
+})
+
+test('warn if a preferGlobal package is being installed direct', function (t) {
+  setup(emptyPackage)
+  common.npm([
+    'install',
+    'file:../' + preferGlobalJson.name,
+    '--loglevel=warn'
+  ], {}, function (err, code, stdout, stderr) {
+    t.ifError(err, 'packages were installed')
+    t.match(
+      stderr,
+      /WARN.*prefer global/,
+      'install should warn when new package is preferGlobal')
+    t.end()
+  })
+})
+
+test('warn if a preferGlobal package is being saved', function (t) {
+  setup(emptyPackage)
+  common.npm([
+    'install',
+    'file:../' + preferGlobalJson.name,
+    '--save',
+    '--loglevel=warn'
+  ], {}, function (err, code, stdout, stderr) {
+    t.ifError(err, 'packages were installed')
+    t.match(
+      stderr,
+      /WARN.*prefer global/,
+      'install should warn when new package is preferGlobal')
+    t.end()
+  })
+})
+
+test('cleanup', function (t) {
+  cleanup()
+  t.end()
+})
+
+function setup (json) {
+  cleanup()
+  mkPkg(preferGlobalJson)
+  process.chdir(mkPkg(json))
+}
+
+function cleanup () {
+  process.chdir(osenv.tmpdir())
+  var pkgs = [preferGlobalJson,
+              dependenciesJson,
+              devDependenciesJson,
+              emptyPackage]
+  pkgs.forEach(function (json) {
+    rimraf.sync(path.resolve(__dirname, json.name))
+  })
+}
+
+function mkPkg (json) {
+  var pkgPath = path.resolve(__dirname, json.name)
+  mkdirp.sync(pkgPath)
+  fs.writeFileSync(
+    path.join(pkgPath, 'package.json'),
+    JSON.stringify(json, null, 2)
+  )
+  return pkgPath
+}