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 mkdirp = require("mkdirp")
var rimraf = require("rimraf")
var requireInject = require("require-inject")

var pkg = path.resolve(__dirname, "version-no-git")
var cache = path.resolve(pkg, "cache")
var gitDir = path.resolve(pkg, ".git")

test("npm version <semver> in a git repo without the git binary", function(t) {
  setup()
  npm.load({cache: cache, registry: common.registry}, function() {
    var version = requireInject("../../lib/version", {
      which: function(cmd, cb) {
        process.nextTick(function() {
          cb(new Error('ENOGIT!'))
        })
      }
    })

    version(["patch"], function(err) {
      if (! t.error(err)) return t.end()
      var p = path.resolve(pkg, "package")
      var testPkg = require(p)
      t.equal("0.0.1", testPkg.version, "\"" + testPkg.version+"\" === \"0.0.1\"")
      t.end()
    })
  })
})

test("cleanup", function(t) {
  process.chdir(osenv.tmpdir())

  rimraf.sync(pkg)
  t.end()
})

function setup() {
  mkdirp.sync(pkg)
  mkdirp.sync(cache)
  mkdirp.sync(gitDir)
  fs.writeFileSync(path.resolve(pkg, "package.json"), JSON.stringify({
    author: "Terin Stock",
    name: "version-no-git-test",
    version: "0.0.0",
    description: "Test for npm version if git binary doesn't exist"
  }), "utf8")
  process.chdir(pkg)
}