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

76 lines
2.4 KiB
JavaScript

import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach, el} from 'angular2/test_lib';
import {ControlGroup, Control, Validators} from 'angular2/forms';
export function main() {
function validator(key:string, error:any){
return function(c:Control) {
var r = {};
r[key] = error;
return r;
}
}
describe("Validators", () => {
describe("required", () => {
it("should error on an empty string", () => {
expect(Validators.required(new Control(""))).toEqual({"required" : true});
});
it("should error on null", () => {
expect(Validators.required(new Control(null))).toEqual({"required" : true});
});
it("should not error on a non-empty string", () => {
expect(Validators.required(new Control("not empty"))).toEqual(null);
});
});
describe("compose", () => {
it("should collect errors from all the validators", () => {
var c = Validators.compose([validator("a", true), validator("b", true)]);
expect(c(new Control(""))).toEqual({"a" : true, "b" : true});
});
it("should run validators left to right", () => {
var c = Validators.compose([validator("a", 1), validator("a", 2)]);
expect(c(new Control(""))).toEqual({"a" : 2});
});
it("should return null when no errors", () => {
var c = Validators.compose([Validators.nullValidator, Validators.nullValidator]);
expect(c(new Control(""))).toEqual(null);
});
});
describe("controlGroupValidator", () => {
it("should collect errors from the child controls", () => {
var one = new Control("one", validator("a", true));
var two = new Control("one", validator("b", true));
var g = new ControlGroup({"one" : one, "two" : two});
expect(Validators.group(g)).toEqual({
"a" : [one],
"b" : [two]
});
});
it("should not include controls that have no errors", () => {
var one = new Control("one", validator("a", true));
var two = new Control("two");
var g = new ControlGroup({"one" : one, "two" : two});
expect(Validators.group(g)).toEqual({
"a": [one]
});
});
it("should return null when no errors", () => {
var g = new ControlGroup({
"one" : new Control("one")
});
expect(Validators.group(g)).toEqual(null);
});
});
});
}