/
text_spec.ts
188 lines (161 loc) Β· 5.37 KB
/
text_spec.ts
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/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Component} from '@angular/core';
import {TestBed} from '@angular/core/testing';
import {of} from 'rxjs';
describe('text instructions', () => {
it('should handle all flavors of interpolated text', () => {
@Component({
template: `
<div>a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h{{eight}}i{{nine}}j</div>
<div>a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h{{eight}}i</div>
<div>a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h</div>
<div>a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g</div>
<div>a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f</div>
<div>a{{one}}b{{two}}c{{three}}d{{four}}e</div>
<div>a{{one}}b{{two}}c{{three}}d</div>
<div>a{{one}}b{{two}}c</div>
<div>a{{one}}b</div>
<div>{{one}}</div>
`
})
class App {
one = 1;
two = 2;
three = 3;
four = 4;
five = 5;
six = 6;
seven = 7;
eight = 8;
nine = 9;
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const allTextContent =
Array.from((fixture.nativeElement as HTMLElement).querySelectorAll('div'))
.map((div: HTMLDivElement) => div.textContent);
expect(allTextContent).toEqual([
'a1b2c3d4e5f6g7h8i9j',
'a1b2c3d4e5f6g7h8i',
'a1b2c3d4e5f6g7h',
'a1b2c3d4e5f6g',
'a1b2c3d4e5f',
'a1b2c3d4e',
'a1b2c3d',
'a1b2c',
'a1b',
'1',
]);
});
it('should handle piped values in interpolated text', () => {
@Component({
template: `
<p>{{who | async}} sells {{(item | async)?.what}} down by the {{(item | async)?.where}}.</p>
`
})
class App {
who = of('Sally');
item = of({
what: 'seashells',
where: 'seashore',
});
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const p = fixture.nativeElement.querySelector('p') as HTMLDivElement;
expect(p.textContent).toBe('Sally sells seashells down by the seashore.');
});
it('should not sanitize urls in interpolated text', () => {
@Component({
template: '<p>{{thisisfine}}</p>',
})
class App {
thisisfine = 'javascript:alert("image_of_dog_with_coffee_in_burning_building.gif")';
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const p = fixture.nativeElement.querySelector('p');
expect(p.textContent)
.toBe('javascript:alert("image_of_dog_with_coffee_in_burning_building.gif")');
});
it('should not allow writing HTML in interpolated text', () => {
@Component({
template: '<div>{{test}}</div>',
})
class App {
test = '<h1>LOL, big text</h1>';
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const div = fixture.nativeElement.querySelector('div');
expect(div.innerHTML).toBe('<h1>LOL, big text</h1>');
});
it('should stringify functions used in bindings', () => {
@Component({
template: '<div>{{test}}</div>',
})
class App {
test = function foo() {};
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const div = fixture.nativeElement.querySelector('div');
expect(div.innerHTML).toBe('function foo() { }');
});
it('should stringify an object using its toString method', () => {
class TestObject {
toString() {
return 'toString';
}
valueOf() {
return 'valueOf';
}
}
@Component({template: '{{object}}'})
class App {
object = new TestObject();
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toBe('toString');
});
it('should stringify a symbol', () => {
// This test is only valid on browsers that support Symbol.
if (typeof Symbol === 'undefined') {
return;
}
@Component({template: '{{symbol}}'})
class App {
symbol = Symbol('hello');
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
// Note that this uses `toContain`, because a polyfilled `Symbol` produces something like
// `Symbol(hello)_p.sc8s398cplk`, whereas the native one is `Symbol(hello)`.
expect(fixture.nativeElement.textContent).toContain('Symbol(hello)');
});
it('should handle binding syntax used inside quoted text', () => {
@Component({
template: `{{'Interpolations look like {{this}}'}}`,
})
class App {
}
TestBed.configureTestingModule({declarations: [App]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toBe('Interpolations look like {{this}}');
});
});