shell-mirror/mac-agent/node_modules/fn.name/test.js

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describe('fn.name', function () {
  'use strict';

  var assume = require('assume')
    , name = require('./');

  it('is exported as a function', function () {
    assume(name).is.a('function');
  });

  it('can extract the name from a function declaration', function () {
    function foobar() {}

    assume(name(foobar)).equals('foobar');
  });

  it('can extract the name from a function expression', function () {
    var a = function bar() {};

    assume(name(a)).equals('bar');
  });

  it('can be overriden using displayName', function () {
    var a = function bar() {};
    a.displayName = 'bro';

    assume(name(a)).equals('bro');
  });

  it('works with constructed instances', function () {
    function Bar(){}

    var foo = new Bar();

    assume(name(foo)).equals('Bar');
  });

  it('works with anonymous', function () {
    assume(name(function () {})).equals('anonymous');
  });

  it('returns the className if we were not given a function', function () {
    assume(name('string')).equals('String');
  });

  //
  // Test if the env supports async functions, if so add a test to ensure
  // that we will work with async functions.
  //
  var asyncfn = true;
  try { new Function('return async function hello() {}')(); }
  catch (e) { asyncfn = false; }

  if (asyncfn) it('detects the name of async functions', function () {
    var fn = new Function('return async function hello() {}')();

    assume(name(fn)).equals('hello');
  });

  //
  // Test that this env supports generators, if so add a test to ensure that
  // we will work with generators.
  //
  var generators = true;
  try { new Function('return function* generator() {}')(); }
  catch (e) { generator = false; }

  if (generators) it('detecs the name of a generator', function () {
    var fn = new Function('return function* hello() {}')();

    assume(name(fn)).equals('hello');
  });
});