angular-docs-cn/modules/angular2/test/common/forms/integration_spec.ts

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import {Component, Directive, Output, EventEmitter} from 'angular2/core';
import {
ComponentFixture,
afterEach,
AsyncTestCompleter,
TestComponentBuilder,
beforeEach,
ddescribe,
describe,
dispatchEvent,
fakeAsync,
tick,
flushMicrotasks,
expect,
it,
inject,
iit,
xit,
browserDetection
} from 'angular2/testing_internal';
import {DOM} from 'angular2/src/platform/dom/dom_adapter';
import {
Control,
ControlGroup,
ControlValueAccessor,
FORM_DIRECTIVES,
NG_VALIDATORS,
NG_ASYNC_VALIDATORS,
NgControl,
NgIf,
NgFor,
NgForm,
Validators,
Validator,
RadioButtonState
} from 'angular2/common';
import {Provider, forwardRef, Input} from 'angular2/core';
import {By} from 'angular2/platform/browser';
import {ListWrapper} from 'angular2/src/facade/collection';
import {ObservableWrapper, TimerWrapper} from 'angular2/src/facade/async';
import {CONST_EXPR} from 'angular2/src/facade/lang';
import {PromiseWrapper} from "angular2/src/facade/promise";
export function main() {
describe("integration tests", () => {
it("should initialize DOM elements with the given form object",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"login": new Control("loginValue")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("loginValue");
async.done();
});
}));
it("should throw if a form isn't passed into ngFormModel",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
expect(() => fixture.detectChanges())
.toThrowError(new RegExp(`ngFormModel expects a form. Please pass one in.`));
async.done();
});
}));
it("should update the control group values on DOM change",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup({"login": new Control("oldValue")});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "updatedValue";
dispatchEvent(input.nativeElement, "input");
expect(form.value).toEqual({"login": "updatedValue"});
async.done();
});
}));
it("should ignore the change event for <input type=text>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup({"login": new Control("oldValue")});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "updatedValue";
ObservableWrapper.subscribe(form.valueChanges,
(value) => { throw 'Should not happen'; });
dispatchEvent(input.nativeElement, "change");
async.done();
});
}));
it("should emit ngSubmit event on submit",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<div>
<form [ngFormModel]="form" (ngSubmit)="name='updated'"></form>
<span>{{name}}</span>
</div>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.form = new ControlGroup({});
fixture.debugElement.componentInstance.name = 'old';
tick();
var form = fixture.debugElement.query(By.css("form"));
dispatchEvent(form.nativeElement, "submit");
tick();
expect(fixture.debugElement.componentInstance.name).toEqual('updated');
})));
it("should work with single controls",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var control = new Control("loginValue");
var t = `<div><input type="text" [ngFormControl]="form"></div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = control;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("loginValue");
input.nativeElement.value = "updatedValue";
dispatchEvent(input.nativeElement, "input");
expect(control.value).toEqual("updatedValue");
async.done();
});
}));
it("should update DOM elements when rebinding the control group",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"login": new Control("oldValue")});
fixture.detectChanges();
fixture.debugElement.componentInstance.form =
new ControlGroup({"login": new Control("newValue")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("newValue");
async.done();
});
}));
it("should update DOM elements when updating the value of a control",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var login = new Control("oldValue");
var form = new ControlGroup({"login": login});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
login.updateValue("newValue");
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("newValue");
async.done();
});
}));
it("should mark controls as touched after interacting with the DOM control",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var login = new Control("oldValue");
var form = new ControlGroup({"login": login});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var loginEl = fixture.debugElement.query(By.css("input"));
expect(login.touched).toBe(false);
dispatchEvent(loginEl.nativeElement, "blur");
expect(login.touched).toBe(true);
async.done();
});
}));
describe("different control types", () => {
it("should support <input type=text>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="text">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"text": new Control("old")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("old");
input.nativeElement.value = "new";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"text": "new"});
async.done();
});
}));
it("should support <input> without type",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input ngControl="text">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"text": new Control("old")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("old");
input.nativeElement.value = "new";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"text": "new"});
async.done();
});
}));
it("should support <textarea>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<textarea ngControl="text"></textarea>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"text": new Control('old')});
fixture.detectChanges();
var textarea = fixture.debugElement.query(By.css("textarea"));
expect(textarea.nativeElement.value).toEqual("old");
textarea.nativeElement.value = "new";
dispatchEvent(textarea.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"text": 'new'});
async.done();
});
}));
it("should support <type=checkbox>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="checkbox" ngControl="checkbox">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"checkbox": new Control(true)});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.checked).toBe(true);
input.nativeElement.checked = false;
dispatchEvent(input.nativeElement, "change");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"checkbox": false});
async.done();
});
}));
it("should support <type=number>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="number" ngControl="num">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"num": new Control(10)});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("10");
input.nativeElement.value = "20";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"num": 20});
async.done();
});
}));
it("should support <type=number> when value is cleared in the UI",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="number" ngControl="num" required>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"num": new Control(10)});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.valid).toBe(false);
expect(fixture.debugElement.componentInstance.form.value).toEqual({"num": null});
input.nativeElement.value = "0";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.valid).toBe(true);
expect(fixture.debugElement.componentInstance.form.value).toEqual({"num": 0});
async.done();
});
}));
it("should support <type=number> when value is cleared programmatically",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup({"num": new Control(10)});
var t = `<div [ngFormModel]="form">
<input type="number" ngControl="num" [(ngModel)]="data">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.debugElement.componentInstance.data = null;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("");
async.done();
});
}));
it("should support <type=radio>",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<form [ngFormModel]="form">
<input type="radio" ngControl="foodChicken" name="food">
<input type="radio" ngControl="foodFish" name="food">
</form>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = new ControlGroup({
"foodChicken": new Control(new RadioButtonState(false, 'chicken')),
"foodFish": new Control(new RadioButtonState(true, 'fish'))
});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.checked).toEqual(false);
dispatchEvent(input.nativeElement, "change");
fixture.detectChanges();
let value = fixture.debugElement.componentInstance.form.value;
expect(value['foodChicken'].checked).toEqual(true);
expect(value['foodFish'].checked).toEqual(false);
async.done();
});
}));
describe("should support <select>", () => {
it("with basic selection",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<select>
<option value="SF"></option>
<option value="NYC"></option>
</select>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var sfOption = fixture.debugElement.query(By.css("option"));
expect(select.nativeElement.value).toEqual("SF");
expect(sfOption.nativeElement.selected).toBe(true);
async.done();
});
}));
it("with basic selection and value bindings",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<select>
<option *ngFor="#city of list" [value]="city['id']">
{{ city['name'] }}
</option>
</select>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp = fixture.debugElement.componentInstance;
testComp.list = [{"id": "0", "name": "SF"}, {"id": "1", "name": "NYC"}];
fixture.detectChanges();
var sfOption = fixture.debugElement.query(By.css("option"));
expect(sfOption.nativeElement.value).toEqual('0');
testComp.list[0]['id'] = '2';
fixture.detectChanges();
expect(sfOption.nativeElement.value).toEqual('2');
async.done();
});
}));
it("with ngControl",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder,
async) => {
var t = `<div [ngFormModel]="form">
<select ngControl="city">
<option value="SF"></option>
<option value="NYC"></option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"city": new Control("SF")});
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var sfOption = fixture.debugElement.query(By.css("option"));
expect(select.nativeElement.value).toEqual("SF");
expect(sfOption.nativeElement.selected).toBe(true);
select.nativeElement.value = "NYC";
dispatchEvent(select.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"city": 'NYC'});
expect(sfOption.nativeElement.selected).toBe(false);
async.done();
});
}));
it("with a dynamic list of options",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<div [ngFormModel]="form">
<select ngControl="city">
<option *ngFor="#c of data" [value]="c"></option>
</select>
</div>`;
var fixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((compFixture) => fixture =
compFixture);
tick();
fixture.debugElement.componentInstance.form =
new ControlGroup({"city": new Control("NYC")});
fixture.debugElement.componentInstance.data = ['SF', 'NYC'];
fixture.detectChanges();
tick();
var select = fixture.debugElement.query(By.css("select"));
expect(select.nativeElement.value).toEqual("NYC");
})));
it("with option values that are objects",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list" [ngValue]="c">{{c['name']}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "SF"}, {"name": "NYC"}, {"name": "Buffalo"}];
testComp.selectedCity = testComp.list[1];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var nycOption = fixture.debugElement.queryAll(By.css("option"))[1];
expect(select.nativeElement.value).toEqual("1: Object");
expect(nycOption.nativeElement.selected).toBe(true);
select.nativeElement.value = "2: Object";
dispatchEvent(select.nativeElement, "input");
fixture.detectChanges();
TimerWrapper.setTimeout(() => {
expect(testComp.selectedCity['name']).toEqual("Buffalo");
async.done();
}, 0);
});
}));
it("when new options are added",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list" [ngValue]="c">{{c['name']}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp: MyComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "SF"}, {"name": "NYC"}];
testComp.selectedCity = testComp.list[1];
fixture.detectChanges();
testComp.list.push({"name": "Buffalo"});
testComp.selectedCity = testComp.list[2];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var buffalo = fixture.debugElement.queryAll(By.css("option"))[2];
expect(select.nativeElement.value).toEqual("2: Object");
expect(buffalo.nativeElement.selected).toBe(true);
async.done();
});
}));
it("when options are removed",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list" [ngValue]="c">{{c}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp: MyComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "SF"}, {"name": "NYC"}];
testComp.selectedCity = testComp.list[1];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
expect(select.nativeElement.value).toEqual("1: Object");
testComp.list.pop();
fixture.detectChanges();
expect(select.nativeElement.value).not.toEqual("1: Object");
async.done();
});
}));
it("when option values change identity while tracking by index",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list; trackBy:customTrackBy" [ngValue]="c">{{c}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "SF"}, {"name": "NYC"}];
testComp.selectedCity = testComp.list[0];
fixture.detectChanges();
testComp.list[1] = "Buffalo";
testComp.selectedCity = testComp.list[1];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var buffalo = fixture.debugElement.queryAll(By.css("option"))[1];
expect(select.nativeElement.value).toEqual("1: Buffalo");
expect(buffalo.nativeElement.selected).toBe(true);
async.done();
});
}));
it("with duplicate option values",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list" [ngValue]="c">{{c}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "NYC"}, {"name": "SF"}, {"name": "SF"}];
testComp.selectedCity = testComp.list[0];
fixture.detectChanges();
testComp.selectedCity = testComp.list[1];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var firstSF = fixture.debugElement.queryAll(By.css("option"))[1];
expect(select.nativeElement.value).toEqual("1: Object");
expect(firstSF.nativeElement.selected).toBe(true);
async.done();
});
}));
it("when option values have same content, but different identities",
inject([TestComponentBuilder, AsyncTestCompleter],
(tcb: TestComponentBuilder, async) => {
var t = `<div>
<select [(ngModel)]="selectedCity">
<option *ngFor="#c of list" [ngValue]="c">{{c['name']}}</option>
</select>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
var testComp = fixture.debugElement.componentInstance;
testComp.list = [{"name": "SF"}, {"name": "NYC"}, {"name": "NYC"}];
testComp.selectedCity = testComp.list[0];
fixture.detectChanges();
testComp.selectedCity = testComp.list[2];
fixture.detectChanges();
var select = fixture.debugElement.query(By.css("select"));
var secondNYC = fixture.debugElement.queryAll(By.css("option"))[2];
expect(select.nativeElement.value).toEqual("2: Object");
expect(secondNYC.nativeElement.selected).toBe(true);
async.done();
});
}));
});
it("should support custom value accessors",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="name" wrapped-value>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"name": new Control("aa")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("!aa!");
input.nativeElement.value = "!bb!";
dispatchEvent(input.nativeElement, "input");
expect(fixture.debugElement.componentInstance.form.value).toEqual({"name": "bb"});
async.done();
});
}));
it("should support custom value accessors on non builtin input elements that fire a change event without a 'target' property",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div [ngFormModel]="form">
<my-input ngControl="name"></my-input>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form =
new ControlGroup({"name": new Control("aa")});
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("my-input"));
expect(input.componentInstance.value).toEqual("!aa!");
input.componentInstance.value = "!bb!";
ObservableWrapper.subscribe(input.componentInstance.onInput, (value) => {
expect(fixture.debugElement.componentInstance.form.value).toEqual({"name": "bb"});
async.done();
});
input.componentInstance.dispatchChangeEvent();
});
}));
});
describe("validations", () => {
it("should use sync validators defined in html",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup(
{"login": new Control(""), "min": new Control(""), "max": new Control("")});
var t = `<div [ngFormModel]="form" login-is-empty-validator>
<input type="text" ngControl="login" required>
<input type="text" ngControl="min" minlength="3">
<input type="text" ngControl="max" maxlength="3">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var required = fixture.debugElement.query(By.css("[required]"));
var minLength = fixture.debugElement.query(By.css("[minlength]"));
var maxLength = fixture.debugElement.query(By.css("[maxlength]"));
required.nativeElement.value = "";
minLength.nativeElement.value = "1";
maxLength.nativeElement.value = "1234";
dispatchEvent(required.nativeElement, "input");
dispatchEvent(minLength.nativeElement, "input");
dispatchEvent(maxLength.nativeElement, "input");
expect(form.hasError("required", ["login"])).toEqual(true);
expect(form.hasError("minlength", ["min"])).toEqual(true);
expect(form.hasError("maxlength", ["max"])).toEqual(true);
expect(form.hasError("loginIsEmpty")).toEqual(true);
required.nativeElement.value = "1";
minLength.nativeElement.value = "123";
maxLength.nativeElement.value = "123";
dispatchEvent(required.nativeElement, "input");
dispatchEvent(minLength.nativeElement, "input");
dispatchEvent(maxLength.nativeElement, "input");
expect(form.valid).toEqual(true);
async.done();
});
}));
it("should use async validators defined in the html",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var form = new ControlGroup({"login": new Control("")});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login" uniq-login-validator="expected">
</div>`;
var rootTC;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => rootTC = root);
tick();
rootTC.debugElement.componentInstance.form = form;
rootTC.detectChanges();
expect(form.pending).toEqual(true);
tick(100);
expect(form.hasError("uniqLogin", ["login"])).toEqual(true);
var input = rootTC.debugElement.query(By.css("input"));
input.nativeElement.value = "expected";
dispatchEvent(input.nativeElement, "input");
tick(100);
expect(form.valid).toEqual(true);
})));
it("should use sync validators defined in the model",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup({"login": new Control("aa", Validators.required)});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
expect(form.valid).toEqual(true);
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "";
dispatchEvent(input.nativeElement, "input");
expect(form.valid).toEqual(false);
async.done();
});
}));
it("should use async validators defined in the model",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var control = new Control("", Validators.required, uniqLoginAsyncValidator("expected"));
var form = new ControlGroup({"login": control});
var t = `<div [ngFormModel]="form">
<input type="text" ngControl="login">
</div>`;
var fixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => fixture = root);
tick();
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
expect(form.hasError("required", ["login"])).toEqual(true);
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "wrong value";
dispatchEvent(input.nativeElement, "input");
expect(form.pending).toEqual(true);
tick();
expect(form.hasError("uniqLogin", ["login"])).toEqual(true);
input.nativeElement.value = "expected";
dispatchEvent(input.nativeElement, "input");
tick();
expect(form.valid).toEqual(true);
})));
});
describe("nested forms", () => {
it("should init DOM with the given form object",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form =
new ControlGroup({"nested": new ControlGroup({"login": new Control("value")})});
var t = `<div [ngFormModel]="form">
<div ngControlGroup="nested">
<input type="text" ngControl="login">
</div>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.value).toEqual("value");
async.done();
});
}));
it("should update the control group values on DOM change",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form =
new ControlGroup({"nested": new ControlGroup({"login": new Control("value")})});
var t = `<div [ngFormModel]="form">
<div ngControlGroup="nested">
<input type="text" ngControl="login">
</div>
</div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input"));
input.nativeElement.value = "updatedValue";
dispatchEvent(input.nativeElement, "input");
expect(form.value).toEqual({"nested": {"login": "updatedValue"}});
async.done();
});
}));
});
it("should support ngModel for complex forms",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var form = new ControlGroup({"name": new Control("")});
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var t =
`<div [ngFormModel]="form"><input type="text" ngControl="name" [(ngModel)]="name"></div>`;
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var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
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fixture.debugElement.componentInstance.name = 'oldValue';
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
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var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(input.value).toEqual("oldValue");
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input.value = "updatedValue";
dispatchEvent(input, "input");
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tick();
expect(fixture.debugElement.componentInstance.name).toEqual("updatedValue");
})));
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it("should support ngModel for single fields",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var form = new Control("");
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var t = `<div><input type="text" [ngFormControl]="form" [(ngModel)]="name"></div>`;
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var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.form = form;
fixture.debugElement.componentInstance.name = "oldValue";
fixture.detectChanges();
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var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(input.value).toEqual("oldValue");
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input.value = "updatedValue";
dispatchEvent(input, "input");
tick();
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expect(fixture.debugElement.componentInstance.name).toEqual("updatedValue");
})));
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describe("template-driven forms", () => {
it("should add new controls and control groups",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<form>
<div ngControlGroup="user">
<input type="text" ngControl="login">
</div>
</form>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = null;
fixture.detectChanges();
var form = fixture.debugElement.children[0].inject(NgForm);
expect(form.controls['user']).not.toBeDefined();
tick();
expect(form.controls['user']).toBeDefined();
expect(form.controls['user'].controls['login']).toBeDefined();
})));
it("should emit ngSubmit event on submit",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<div><form (ngSubmit)="name='updated'"></form></div>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = 'old';
var form = fixture.debugElement.query(By.css("form"));
dispatchEvent(form.nativeElement, "submit");
tick();
expect(fixture.debugElement.componentInstance.name).toEqual("updated");
})));
it("should not create a template-driven form when ngNoForm is used",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<form ngNoForm>
</form>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.name = null;
fixture.detectChanges();
expect(fixture.debugElement.children[0].providerTokens.length).toEqual(0);
async.done();
});
}));
it("should remove controls",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<form>
<div *ngIf="name == 'show'">
<input type="text" ngControl="login">
</div>
</form>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = 'show';
fixture.detectChanges();
tick();
var form = fixture.debugElement.children[0].inject(NgForm);
expect(form.controls['login']).toBeDefined();
fixture.debugElement.componentInstance.name = 'hide';
fixture.detectChanges();
tick();
expect(form.controls['login']).not.toBeDefined();
})));
it("should remove control groups",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<form>
<div *ngIf="name=='show'" ngControlGroup="user">
<input type="text" ngControl="login">
</div>
</form>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = 'show';
fixture.detectChanges();
tick();
var form = fixture.debugElement.children[0].inject(NgForm);
expect(form.controls['user']).toBeDefined();
fixture.debugElement.componentInstance.name = 'hide';
fixture.detectChanges();
tick();
expect(form.controls['user']).not.toBeDefined();
})));
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it("should support ngModel for complex forms",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<form>
<input type="text" ngControl="name" [(ngModel)]="name">
</form>`;
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var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = "oldValue";
fixture.detectChanges();
tick();
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var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(input.value).toEqual("oldValue");
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input.value = "updatedValue";
dispatchEvent(input, "input");
tick();
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expect(fixture.debugElement.componentInstance.name).toEqual("updatedValue");
})));
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it("should support ngModel for single fields",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<div><input type="text" [(ngModel)]="name"></div>`;
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var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = "oldValue";
fixture.detectChanges();
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var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(input.value).toEqual("oldValue");
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input.value = "updatedValue";
dispatchEvent(input, "input");
tick();
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expect(fixture.debugElement.componentInstance.name).toEqual("updatedValue");
})));
it("should support <type=radio>",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<form>
<input type="radio" name="food" ngControl="chicken" [(ngModel)]="data['chicken1']">
<input type="radio" name="food" ngControl="fish" [(ngModel)]="data['fish1']">
</form>
<form>
<input type="radio" name="food" ngControl="chicken" [(ngModel)]="data['chicken2']">
<input type="radio" name="food" ngControl="fish" [(ngModel)]="data['fish2']">
</form>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((f) => { fixture = f; });
tick();
fixture.debugElement.componentInstance.data = {
'chicken1': new RadioButtonState(false, 'chicken'),
'fish1': new RadioButtonState(true, 'fish'),
'chicken2': new RadioButtonState(false, 'chicken'),
'fish2': new RadioButtonState(true, 'fish')
};
fixture.detectChanges();
tick();
var input = fixture.debugElement.query(By.css("input"));
expect(input.nativeElement.checked).toEqual(false);
dispatchEvent(input.nativeElement, "change");
tick();
let data = fixture.debugElement.componentInstance.data;
expect(data['chicken1']).toEqual(new RadioButtonState(true, 'chicken'));
expect(data['fish1']).toEqual(new RadioButtonState(false, 'fish'));
expect(data['chicken2']).toEqual(new RadioButtonState(false, 'chicken'));
expect(data['fish2']).toEqual(new RadioButtonState(true, 'fish'));
})));
});
describe("setting status classes", () => {
it("should work with single fields",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new Control("", Validators.required);
var t = `<div><input type="text" [ngFormControl]="form"></div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(sortedClassList(input)).toEqual(['ng-invalid', 'ng-pristine', 'ng-untouched']);
dispatchEvent(input, "blur");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-invalid", "ng-pristine", "ng-touched"]);
input.value = "updatedValue";
dispatchEvent(input, "input");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-dirty", "ng-touched", "ng-valid"]);
async.done();
});
}));
it("should work with complex model-driven forms",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var form = new ControlGroup({"name": new Control("", Validators.required)});
var t = `<form [ngFormModel]="form"><input type="text" ngControl="name"></form>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(sortedClassList(input)).toEqual(["ng-invalid", "ng-pristine", "ng-untouched"]);
dispatchEvent(input, "blur");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-invalid", "ng-pristine", "ng-touched"]);
input.value = "updatedValue";
dispatchEvent(input, "input");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-dirty", "ng-touched", "ng-valid"]);
async.done();
});
}));
it("should work with ngModel",
inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
var t = `<div><input [(ngModel)]="name" required></div>`;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((fixture) => {
fixture.debugElement.componentInstance.name = "";
fixture.detectChanges();
var input = fixture.debugElement.query(By.css("input")).nativeElement;
expect(sortedClassList(input)).toEqual(["ng-invalid", "ng-pristine", "ng-untouched"]);
dispatchEvent(input, "blur");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-invalid", "ng-pristine", "ng-touched"]);
input.value = "updatedValue";
dispatchEvent(input, "input");
fixture.detectChanges();
expect(sortedClassList(input)).toEqual(["ng-dirty", "ng-touched", "ng-valid"]);
async.done();
});
}));
});
describe("ngModel corner cases", () => {
it("should not update the view when the value initially came from the view",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var form = new Control("");
var t = `<div><input type="text" [ngFormControl]="form" [(ngModel)]="name"></div>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.form = form;
fixture.detectChanges();
// In Firefox, effective text selection in the real DOM requires an actual focus
// of the field. This is not an issue in a new HTML document.
if (browserDetection.isFirefox) {
var fakeDoc = DOM.createHtmlDocument();
DOM.appendChild(fakeDoc.body, fixture.debugElement.nativeElement);
}
var input = fixture.debugElement.query(By.css("input")).nativeElement;
input.value = "aa";
input.selectionStart = 1;
dispatchEvent(input, "input");
tick();
fixture.detectChanges();
// selection start has not changed because we did not reset the value
expect(input.selectionStart).toEqual(1);
})));
it("should update the view when the model is set back to what used to be in the view",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
var t = `<input type="text" [(ngModel)]="name">`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.debugElement.componentInstance.name = "";
fixture.detectChanges();
// Type "aa" into the input.
var input = fixture.debugElement.query(By.css("input")).nativeElement;
input.value = "aa";
input.selectionStart = 1;
dispatchEvent(input, "input");
tick();
fixture.detectChanges();
expect(fixture.debugElement.componentInstance.name).toEqual("aa");
// Programatically update the input value to be "bb".
fixture.debugElement.componentInstance.name = "bb";
tick();
fixture.detectChanges();
expect(input.value).toEqual("bb");
// Programatically set it back to "aa".
fixture.debugElement.componentInstance.name = "aa";
tick();
fixture.detectChanges();
expect(input.value).toEqual("aa");
})));
it("should not crash when validity is checked from a binding",
fakeAsync(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
// {{x.valid}} used to crash because valid() tried to read a property
// from form.control before it was set. This test verifies this bug is
// fixed.
var t = `<form><div ngControlGroup="x" #x="ngForm">
<input type="text" ngControl="test"></div>{{x.valid}}</form>`;
var fixture: ComponentFixture;
tcb.overrideTemplate(MyComp, t).createAsync(MyComp).then((root) => { fixture = root; });
tick();
fixture.detectChanges();
})));
});
});
}
@Directive({
selector: '[wrapped-value]',
host: {'(input)': 'handleOnInput($event.target.value)', '[value]': 'value'}
})
class WrappedValue implements ControlValueAccessor {
value;
onChange: Function;
constructor(cd: NgControl) { cd.valueAccessor = this; }
writeValue(value) { this.value = `!${value}!`; }
registerOnChange(fn) { this.onChange = fn; }
registerOnTouched(fn) {}
handleOnInput(value) { this.onChange(value.substring(1, value.length - 1)); }
}
@Component({selector: "my-input", template: ''})
class MyInput implements ControlValueAccessor {
@Output('input') onInput: EventEmitter<any> = new EventEmitter();
value: string;
constructor(cd: NgControl) { cd.valueAccessor = this; }
writeValue(value) { this.value = `!${value}!`; }
registerOnChange(fn) { ObservableWrapper.subscribe(this.onInput, fn); }
registerOnTouched(fn) {}
dispatchChangeEvent() {
ObservableWrapper.callEmit(this.onInput, this.value.substring(1, this.value.length - 1));
}
}
function uniqLoginAsyncValidator(expectedValue: string) {
return (c) => {
var completer = PromiseWrapper.completer();
var res = (c.value == expectedValue) ? null : {"uniqLogin": true};
completer.resolve(res);
return completer.promise;
};
}
function loginIsEmptyGroupValidator(c: ControlGroup) {
return c.controls["login"].value == "" ? {"loginIsEmpty": true} : null;
}
@Directive({
selector: '[login-is-empty-validator]',
providers: [new Provider(NG_VALIDATORS, {useValue: loginIsEmptyGroupValidator, multi: true})]
})
class LoginIsEmptyValidator {
}
@Directive({
selector: '[uniq-login-validator]',
providers: [
new Provider(NG_ASYNC_VALIDATORS,
{useExisting: forwardRef(() => UniqLoginValidator), multi: true})
]
})
class UniqLoginValidator implements Validator {
@Input('uniq-login-validator') expected;
validate(c) { return uniqLoginAsyncValidator(this.expected)(c); }
}
@Component({
selector: "my-comp",
template: '',
directives: [
FORM_DIRECTIVES,
WrappedValue,
MyInput,
NgIf,
NgFor,
LoginIsEmptyValidator,
UniqLoginValidator
]
})
class MyComp {
form: any;
name: string;
data: any;
list: any[];
selectedCity: any;
customTrackBy(index: number, obj: any): number { return index; };
}
function sortedClassList(el) {
var l = DOM.classList(el);
ListWrapper.sort(l);
return l;
}