angular-cn/modules/angular2/test/common/forms/validators_spec.ts

174 lines
5.9 KiB
TypeScript

import {
ddescribe,
describe,
it,
iit,
xit,
expect,
beforeEach,
afterEach,
fakeAsync,
tick,
el
} from 'angular2/testing_internal';
import {ControlGroup, Control, Validators, AbstractControl, ControlArray} from 'angular2/common';
import {PromiseWrapper} from 'angular2/src/facade/promise';
import {EventEmitter, ObservableWrapper, TimerWrapper} from 'angular2/src/facade/async';
import {CONST_EXPR} from 'angular2/src/facade/lang';
export function main() {
function validator(key: string, error: any) {
return function(c: AbstractControl) {
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); });
it("should accept zero as valid",
() => { expect(Validators.required(new Control(0))).toEqual(null); });
});
describe("minLength", () => {
it("should not error on an empty string",
() => { expect(Validators.minLength(2)(new Control(""))).toEqual(null); });
it("should not error on null",
() => { expect(Validators.minLength(2)(new Control(null))).toEqual(null); });
it("should not error on valid strings",
() => { expect(Validators.minLength(2)(new Control("aa"))).toEqual(null); });
it("should error on short strings", () => {
expect(Validators.minLength(2)(new Control("a")))
.toEqual({"minlength": {"requiredLength": 2, "actualLength": 1}});
});
});
describe("maxLength", () => {
it("should not error on an empty string",
() => { expect(Validators.maxLength(2)(new Control(""))).toEqual(null); });
it("should not error on null",
() => { expect(Validators.maxLength(2)(new Control(null))).toEqual(null); });
it("should not error on valid strings",
() => { expect(Validators.maxLength(2)(new Control("aa"))).toEqual(null); });
it("should error on long strings", () => {
expect(Validators.maxLength(2)(new Control("aaa")))
.toEqual({"maxlength": {"requiredLength": 2, "actualLength": 3}});
});
});
describe("pattern", () => {
it("should not error on an empty string",
() => { expect(Validators.pattern("[a-zA-Z ]*")(new Control(""))).toEqual(null); });
it("should not error on null",
() => { expect(Validators.pattern("[a-zA-Z ]*")(new Control(null))).toEqual(null); });
it("should not error on valid strings",
() => { expect(Validators.pattern("[a-zA-Z ]*")(new Control("aaAA"))).toEqual(null); });
it("should error on failure to match string", () => {
expect(Validators.pattern("[a-zA-Z ]*")(new Control("aaa0")))
.toEqual({"pattern": {"requiredPattern": "^[a-zA-Z ]*$", "actualValue": "aaa0"}});
});
});
describe("compose", () => {
it("should return null when given null",
() => { expect(Validators.compose(null)).toBe(null); });
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);
});
it("should ignore nulls", () => {
var c = Validators.compose([null, Validators.required]);
expect(c(new Control(""))).toEqual({"required": true});
});
});
describe("composeAsync", () => {
function asyncValidator(expected, response) {
return (c) => {
var emitter = new EventEmitter();
var res = c.value != expected ? response : null;
PromiseWrapper.scheduleMicrotask(() => {
ObservableWrapper.callEmit(emitter, res);
// this is required because of a bug in ObservableWrapper
// where callComplete can fire before callEmit
// remove this one the bug is fixed
TimerWrapper.setTimeout(() => { ObservableWrapper.callComplete(emitter); }, 0);
});
return emitter;
};
}
it("should return null when given null",
() => { expect(Validators.composeAsync(null)).toEqual(null); });
it("should collect errors from all the validators", fakeAsync(() => {
var c = Validators.composeAsync([
asyncValidator("expected", {"one": true}),
asyncValidator("expected", {"two": true})
]);
var value = null;
(<Promise<any>>c(new Control("invalid"))).then(v => value = v);
tick(1);
expect(value).toEqual({"one": true, "two": true});
}));
it("should return null when no errors", fakeAsync(() => {
var c = Validators.composeAsync([asyncValidator("expected", {"one": true})]);
var value = null;
(<Promise<any>>c(new Control("expected"))).then(v => value = v);
tick(1);
expect(value).toEqual(null);
}));
it("should ignore nulls", fakeAsync(() => {
var c = Validators.composeAsync([asyncValidator("expected", {"one": true}), null]);
var value = null;
(<Promise<any>>c(new Control("invalid"))).then(v => value = v);
tick(1);
expect(value).toEqual({"one": true});
}));
});
});
}