angular-docs-cn/modules/angular2/test/forms/form_builder_spec.js

import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach, el} from 'angular2/test_lib';
import {Control, FormBuilder, Validators} from 'angular2/forms';

export function main() {
  describe("Form Builder", () => {
    var b;

    beforeEach(() => {
      b = new FormBuilder();
    });

    it("should create controls from a value", () => {
      var g = b.group({
        "login": "some value"
      });

      expect(g.controls["login"].value).toEqual("some value");
    });

    it("should create controls from an array", () => {
      var g = b.group({
        "login": ["some value"],
        "password": ["some value", Validators.required]
      });

      expect(g.controls["login"].value).toEqual("some value");
      expect(g.controls["password"].value).toEqual("some value");
      expect(g.controls["password"].validator).toEqual(Validators.required);
    });

    it("should use controls", () => {
      var g = b.group({
        "login": b.control("some value", Validators.required)
      });

      expect(g.controls["login"].value).toEqual("some value");
      expect(g.controls["login"].validator).toBe(Validators.required);
    });

    it("should create groups with optional controls", () => {
      var g = b.group({
        "login": "some value"
      }, {"optionals": {"login" : false}});

      expect(g.contains("login")).toEqual(false);
    });

    it("should create groups with a custom validator", () => {
      var g = b.group({
        "login": "some value"
      }, {"validator": Validators.nullValidator});

      expect(g.validator).toBe(Validators.nullValidator);
    });

    it("should use default validators when no validators are provided", () => {
      var g = b.group({
        "login": "some value"
      });
      expect(g.controls["login"].validator).toBe(Validators.nullValidator);
      expect(g.validator).toBe(Validators.group);
    });

    it("should create control arrays", () => {
      var c = b.control("three");
      var a = b.array([
        "one",
        ["two", Validators.required],
        c,
        b.array(['four'])
      ]);

      expect(a.value).toEqual(['one', 'two', 'three', ['four']]);
    });
  });
}