text: var readInstalled = require("../read-installed.js")
  var test = require("tap").test
  var json = require("../package.json")
  var path = require("path")
  var known = [].concat(Object.keys(json.dependencies)
    , Object.keys(json.optionalDependencies)
    , Object.keys(json.devDependencies)).sort()
  
  test("make sure that it works with depth=1", function (t) {
    readInstalled(path.join(__dirname, "../"), {
      depth: 1
    }, function (er, map) {
      t.notOk(er, "er should be bull")
      t.ok(map, "map should be data")
      if (er) return console.error(er.stack || er.message)
      var subdeps = Object.keys(map.dependencies).reduce(function(acc, dep) {
        acc += Object.keys(map.dependencies[dep].dependencies).length;
        return acc;
      }, 0);
      t.notEqual(subdeps, 0, "there should some sub dependencies")
      t.end()
    })
  })
  