doctor: add new subcommand

This command will diagnose user's environment and let
the user know some recommended solutions if they
potentially have any problems related to npm.

Credit: @watilde
Reviewed-By: @othiym23
Reviewed-By: @iarna
PR-URL: https://github.com/npm/npm/pull/14582
Fixes: #6756

1 files changed, 69 insertions, 0 deletions

diff --git a/test/tap/doctor.js b/test/tap/doctor.js
new file mode 100644
index 000000000..5cdffb2bd
--- /dev/null
+++ b/test/tap/doctor.js
@@ -0,0 +1,69 @@
+'use strict'
+var http = require('http')
+var which = require('which')
+var mr = require('npm-registry-mock')
+var test = require('tap').test
+var common = require('../common-tap.js')
+var npm = require('../../lib/npm.js')
+var server
+var node_url
+var pingResponse = {
+  host: 'registry.npmjs.org',
+  ok: true,
+  username: null,
+  peer: 'example.com'
+}
+var npmResponse = {
+  'dist-tags': {latest: '0.0.0'},
+  'versions': {
+    '0.0.0': {
+      version: '0.0.0',
+      dist: {
+        shasum: '',
+        tarball: ''
+      }
+    }
+  }
+}
+
+test('setup', function (t) {
+  var port = common.port + 1
+  http.createServer(function (q, s) {
+    s.end(JSON.stringify([{lts: true, version: '0.0.0'}]))
+    this.close()
+  }).listen(port, function () {
+    node_url = 'http://localhost:' + port
+    mr({port: common.port}, function (e, s) {
+      t.ifError(e, 'registry mocked successfully')
+      server = s
+      server.get('/-/ping?write=true').reply(200, JSON.stringify(pingResponse))
+      server.get('/npm').reply(200, JSON.stringify(npmResponse))
+      npm.load({registry: common.registry, loglevel: 'silent'}, function (e) {
+        t.ifError(e, 'npm loaded successfully')
+        t.pass('all set up')
+        t.done()
+      })
+    })
+  })
+})
+
+test('npm doctor', function (t) {
+  npm.commands.doctor({'node-url': node_url}, true, function (e, list) {
+    t.ifError(e, 'npm loaded successfully')
+    t.same(list.length, 9, 'list should have 9 prop')
+    t.same(list[0][1], 'ok', 'npm ping')
+    t.same(list[1][1], 'v' + npm.version, 'npm -v')
+    t.same(list[2][1], process.version, 'node -v')
+    t.same(list[3][1], common.registry + '/', 'npm config get registry')
+    t.same(list[5][1], 'ok', 'Perms check on cached files')
+    t.same(list[6][1], 'ok', 'Perms check on global node_modules')
+    t.same(list[7][1], 'ok', 'Perms check on local node_modules')
+    t.same(list[8][1], 'ok', 'Checksum cached files')
+    which('git', function (e, resolvedPath) {
+      t.ifError(e, 'git command is installed')
+      t.same(list[4][1], resolvedPath, 'which git')
+      server.close()
+      t.done()
+    })
+  })
+})