common-errors/tests/already-in-use.js

Common error classes and utility functions

var assert = require('assert');
var Promise = require('bluebird');
var errors = require('..');
var name = "AlreadyInUseError";
var Err = errors[name];

describe(name, function(){
  it("should work", function(){
    var error = new Err("Entity", 'att1', 'att2', 'att3', 'att4');
    assert.equal(error.name, name), 'Its name is correct.';
    assert.equal(error.message, "The specified 'Entity' value is already in use for: att1, att2, att3, att4");
    assert.ok(new RegExp(error.name + ": " + error.message + "\n(.*\n)+").test(error.stack), "Stack is good");
    assert.ok(error instanceof Error, "It is an instanceof Error");

    var caught_error_in_promise = false;
    var promise = new Promise(function(res, rej) { res(true); }).then(function(){
      throw new Err("test error");
    }).catch(Error, function(e){
      caught_error_in_promise = true;
    }).finally(function(){
      assert.ok(caught_error_in_promise, "caught promise error");
    });

  });
});