install-test: add test for new command

PR-URL: #9443

Author: othiym23

test/tap/it.js

@@ -0,0 +1,77 @@
+var join = require('path').join
+var statSync = require('graceful-fs').statSync
+var writeFileSync = require('graceful-fs').writeFileSync
+
+var mkdirp = require('mkdirp')
+var mr = require('npm-registry-mock')
+var osenv = require('osenv')
+var rimraf = require('rimraf')
+var test = require('tap').test
+
+var common = require('../common-tap')
+
+var pkg = join(__dirname, 'run-script')
+var installed = join(pkg, 'node_modules', 'underscore', 'package.json')
+
+var json = {
+  name: 'npm-it-test',
+  dependencies: {
+    underscore: '1.5.1'
+  },
+  scripts: {
+    test: 'echo hax'
+  }
+}
+
+var server
+
+test('run up the mock registry', function (t) {
+  mr({ port: common.port }, function (err, s) {
+    if (err) throw err
+    server = s
+    t.end()
+  })
+})
+
+test('npm install-test', function (t) {
+  setup()
+  common.npm('install-test', { cwd: pkg }, function (err, code, stdout, stderr) {
+    if (err) throw err
+    t.equal(code, 0, 'command ran without error')
+    t.ok(statSync(installed), 'package was installed')
+    t.equal(require(installed).version, '1.5.1', 'underscore got installed as expected')
+    t.match(stdout, /hax/, 'found expected test output')
+    t.notOk(stderr, 'stderr should be empty')
+    t.end()
+  })
+})
+
+test('npm it (the form most people will use)', function (t) {
+  setup()
+  common.npm('it', { cwd: pkg }, function (err, code, stdout, stderr) {
+    if (err) throw err
+    t.equal(code, 0, 'command ran without error')
+    t.ok(statSync(installed), 'package was installed')
+    t.equal(require(installed).version, '1.5.1', 'underscore got installed as expected')
+    t.match(stdout, /hax/, 'found expected test output')
+    t.notOk(stderr, 'stderr should be empty')
+    t.end()
+  })
+})
+
+test('cleanup', function (t) {
+  process.chdir(osenv.tmpdir())
+  server.close()
+  cleanup()
+  t.end()
+})
+
+function cleanup () {
+  rimraf.sync(pkg)
+}
+
+function setup () {
+  cleanup()
+  mkdirp.sync(pkg)
+  writeFileSync(join(pkg, 'package.json'), JSON.stringify(json, null, 2))
+}