node_modules/npm/test/tap/404-parent.js

var common = require("../common-tap.js")
var test = require("tap").test
var npm = require("../../")
var osenv = require("osenv")
var path = require("path")
var fs = require("fs")
var rimraf = require("rimraf")
var mkdirp = require("mkdirp")
var pkg = path.resolve(__dirname, "404-parent")
var mr = require("npm-registry-mock")

test("404-parent: if parent exists, specify parent in error message", function (t) {
  setup()
  rimraf.sync(path.resolve(pkg, "node_modules"))
  performInstall(function (err) {
    t.ok(err instanceof Error, "error was returned")
    t.ok(err.parent === "404-parent-test", "error's parent set")
    t.end()
  })
})

test("cleanup", function (t) {
  process.chdir(osenv.tmpdir())
  rimraf.sync(pkg)
  t.end()
})

function setup() {
  mkdirp.sync(pkg)
  mkdirp.sync(path.resolve(pkg, "cache"))
  fs.writeFileSync(path.resolve(pkg, "package.json"), JSON.stringify({
    author: "Evan Lucas",
    name: "404-parent-test",
    version: "0.0.0",
    description: "Test for 404-parent",
    dependencies: {
      "test-npm-404-parent-test": "*"
    }
  }), "utf8")
  process.chdir(pkg)
}

function plugin (server) {
  server.get("/test-npm-404-parent-test")
    .reply(404, {"error": "version not found"})
}

function performInstall (cb) {
  mr({port : common.port, plugin : plugin}, function (er, s) { // create mock registry.
    npm.load({registry: common.registry}, function () {
      npm.commands.install(pkg, [], function (err) {
        cb(err)
        s.close() // shutdown mock npm server.
      })
    })
  })
}