Andrew Kushnir 8c2d8428d5 fix(core): verify parsed ICU expression at runtime before executing it (#35923)
Prior to this commit, i18n runtime logic relied on the assumption that provided translation is syntactically correct, specifically around ICU syntax. However provided translations might contain some errors that lead to parsing failure. Specifically when translation contains curly braces, runtime i18n logic tries to parse them as an ICU expression and fails. This commit validates ICU parsing result (making sure it was parsed correctly) and throws an error if parsing error happens. The error that is thrown also contains translated message text for easier debugging.

Note: the check and the error message introduced in this PR is a safeguard against the problem that led to unhandled i18n runtime logic crash. So the framework behavior remains the same, we just improve the error message and it should be safe to merge to the patch branch.

Resolves #35689.

PR Close #35923
2020-03-13 07:58:53 -07:00

2369 lines
86 KiB
TypeScript
Raw Blame History

/**
* @license
* Copyright Google Inc. 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
*/
// Make the `$localize()` global function available to the compiled templates, and the direct calls
// below. This would normally be done inside the application `polyfills.ts` file.
import '@angular/localize/init';
import {CommonModule, registerLocaleData} from '@angular/common';
import localeRo from '@angular/common/locales/ro';
import {Component, ContentChild, ElementRef, ContentChildren, Directive, HostBinding, Input, LOCALE_ID, QueryList, TemplateRef, Type, ViewChild, ViewContainerRef, Pipe, PipeTransform, NO_ERRORS_SCHEMA} from '@angular/core';
import {setDelayProjection} from '@angular/core/src/render3/instructions/projection';
import {TestBed} from '@angular/core/testing';
import {loadTranslations, clearTranslations} from '@angular/localize';
import {By} from '@angular/platform-browser';
import {expect} from '@angular/platform-browser/testing/src/matchers';
import {onlyInIvy} from '@angular/private/testing';
import {computeMsgId} from '@angular/compiler';
import {BehaviorSubject} from 'rxjs';
onlyInIvy('Ivy i18n logic').describe('runtime i18n', () => {
beforeEach(() => {
TestBed.configureTestingModule({
declarations: [AppComp, DirectiveWithTplRef, UppercasePipe],
// In some of the tests we use made-up tag names for better readability, however they'll
// cause validation errors. Add the `NO_ERRORS_SCHEMA` so that we don't have to declare
// dummy components for each one of them.
schemas: [NO_ERRORS_SCHEMA],
});
});
afterEach(() => {
setDelayProjection(false);
clearTranslations();
});
it('should translate text', () => {
loadTranslations({[computeMsgId('text')]: 'texte'});
const fixture = initWithTemplate(AppComp, `<div i18n>text</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>texte</div>`);
});
it('should support interpolations', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}!')]: 'Bonjour {$INTERPOLATION}!'});
const fixture = initWithTemplate(AppComp, `<div i18n>Hello {{name}}!</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>Bonjour Angular!</div>`);
fixture.componentRef.instance.name = `John`;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div>Bonjour John!</div>`);
});
it('should support named interpolations', () => {
loadTranslations({
[computeMsgId(' Hello {$USER_NAME}! Emails: {$AMOUNT_OF_EMAILS_RECEIVED} ')]:
' Bonjour {$USER_NAME}! Emails: {$AMOUNT_OF_EMAILS_RECEIVED} '
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
Hello {{ name // i18n(ph="user_name") }}!
Emails: {{ count // i18n(ph="amount of emails received") }}
</div>
`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div> Bonjour Angular! Emails: 0 </div>`);
fixture.componentRef.instance.name = `John`;
fixture.componentRef.instance.count = 5;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div> Bonjour John! Emails: 5 </div>`);
});
it('should support interpolations with custom interpolation config', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
const interpolation = ['{%', '%}'] as[string, string];
TestBed.overrideComponent(AppComp, {set: {interpolation}});
const fixture = initWithTemplate(AppComp, `<div i18n>Hello {% name %}</div>`);
expect(fixture.nativeElement.innerHTML).toBe('<div>Bonjour Angular</div>');
});
it('should support &ngsp; in translatable sections', () => {
// note: the `` unicode symbol represents the `&ngsp;` in translations
loadTranslations({[computeMsgId('text ||')]: 'texte ||'});
const fixture = initWithTemplate(AppCompWithWhitespaces, `<div i18n>text |&ngsp;|</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>texte | |</div>`);
});
it('should support interpolations with complex expressions', () => {
loadTranslations({
[computeMsgId(' {$INTERPOLATION} - {$INTERPOLATION_1} - {$INTERPOLATION_2} ')]:
' {$INTERPOLATION} - {$INTERPOLATION_1} - {$INTERPOLATION_2} (fr) '
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
{{ name | uppercase }} -
{{ obj?.a?.b }} -
{{ obj?.getA()?.b }}
</div>
`);
// the `obj` field is not yet defined, so 2nd and 3rd interpolations return empty strings
expect(fixture.nativeElement.innerHTML).toEqual(`<div> ANGULAR - - (fr) </div>`);
fixture.componentRef.instance.obj = {
a: {b: 'value 1'},
getA: () => ({b: 'value 2'}),
};
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div> ANGULAR - value 1 - value 2 (fr) </div>`);
});
it('should support elements', () => {
loadTranslations({
[computeMsgId(
'Hello {$START_TAG_SPAN}world{$CLOSE_TAG_SPAN} and {$START_TAG_DIV}universe{$CLOSE_TAG_DIV}!',
'')]:
'Bonjour {$START_TAG_SPAN}monde{$CLOSE_TAG_SPAN} et {$START_TAG_DIV}univers{$CLOSE_TAG_DIV}!'
});
const fixture = initWithTemplate(
AppComp, `<div i18n>Hello <span>world</span> and <div>universe</div>!</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>Bonjour <span>monde</span> et <div>univers</div>!</div>`);
});
it('should support removing elements', () => {
loadTranslations({
[computeMsgId(
'Hello {$START_BOLD_TEXT}my{$CLOSE_BOLD_TEXT}{$START_TAG_SPAN}world{$CLOSE_TAG_SPAN}',
'')]: 'Bonjour {$START_TAG_SPAN}monde{$CLOSE_TAG_SPAN}'
});
const fixture =
initWithTemplate(AppComp, `<div i18n>Hello <b>my</b><span>world</span></div><div>!</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>Bonjour <span>monde</span></div><div>!</div>`);
});
it('should support moving elements', () => {
loadTranslations({
[computeMsgId(
'Hello {$START_TAG_SPAN}world{$CLOSE_TAG_SPAN} and {$START_TAG_DIV}universe{$CLOSE_TAG_DIV}!',
'')]:
'Bonjour {$START_TAG_DIV}univers{$CLOSE_TAG_DIV} et {$START_TAG_SPAN}monde{$CLOSE_TAG_SPAN}!'
});
const fixture = initWithTemplate(
AppComp, `<div i18n>Hello <span>world</span> and <div>universe</div>!</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>Bonjour <div>univers</div> et <span>monde</span>!</div>`);
});
it('should support template directives', () => {
loadTranslations({
[computeMsgId(
'Content: {$START_TAG_DIV}before{$START_TAG_SPAN}middle{$CLOSE_TAG_SPAN}after{$CLOSE_TAG_DIV}!',
'')]:
'Contenu: {$START_TAG_DIV}avant{$START_TAG_SPAN}milieu{$CLOSE_TAG_SPAN}après{$CLOSE_TAG_DIV}!'
});
const fixture = initWithTemplate(
AppComp,
`<div i18n>Content: <div *ngIf="visible">before<span>middle</span>after</div>!</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>Contenu: <div>avant<span>milieu</span>après</div><!--bindings={
"ng-reflect-ng-if": "true"
}-->!</div>`);
fixture.componentRef.instance.visible = false;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div>Contenu: <!--bindings={
"ng-reflect-ng-if": "false"
}-->!</div>`);
});
it('should support multiple i18n blocks', () => {
loadTranslations({
[computeMsgId('trad {$INTERPOLATION}')]: 'traduction {$INTERPOLATION}',
[computeMsgId('start {$INTERPOLATION} middle {$INTERPOLATION_1} end')]:
'start {$INTERPOLATION_1} middle {$INTERPOLATION} end',
[computeMsgId(
'{$START_TAG_C}trad{$CLOSE_TAG_C}{$START_TAG_D}{$CLOSE_TAG_D}{$START_TAG_E}{$CLOSE_TAG_E}',
'')]: '{$START_TAG_E}{$CLOSE_TAG_E}{$START_TAG_C}traduction{$CLOSE_TAG_C}'
});
const fixture = initWithTemplate(AppComp, `
<div>
<a i18n>trad {{name}}</a>
hello
<b i18n i18n-title title="start {{count}} middle {{name}} end">
<c>trad</c>
<d></d>
<e></e>
</b>
</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><a>traduction Angular</a> hello <b title="start Angular middle 0 end"><e></e><c>traduction</c></b></div>`);
});
it('should support multiple sibling i18n blocks', () => {
loadTranslations({
[computeMsgId('Section 1')]: 'Section un',
[computeMsgId('Section 2')]: 'Section deux',
[computeMsgId('Section 3')]: 'Section trois',
});
const fixture = initWithTemplate(AppComp, `
<div>
<div i18n>Section 1</div>
<div i18n>Section 2</div>
<div i18n>Section 3</div>
</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div><div>Section un</div><div>Section deux</div><div>Section trois</div></div>`);
});
it('should support multiple sibling i18n blocks inside of a template directive', () => {
loadTranslations({
[computeMsgId('Section 1')]: 'Section un',
[computeMsgId('Section 2')]: 'Section deux',
[computeMsgId('Section 3')]: 'Section trois',
});
const fixture = initWithTemplate(AppComp, `
<ul *ngFor="let item of [1,2,3]">
<li i18n>Section 1</li>
<li i18n>Section 2</li>
<li i18n>Section 3</li>
</ul>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<ul><li>Section un</li><li>Section deux</li><li>Section trois</li></ul><ul><li>Section un</li><li>Section deux</li><li>Section trois</li></ul><ul><li>Section un</li><li>Section deux</li><li>Section trois</li></ul><!--bindings={
"ng-reflect-ng-for-of": "1,2,3"
}-->`);
});
it('should properly escape quotes in content', () => {
loadTranslations({
[computeMsgId('\'Single quotes\' and "Double quotes"')]:
'\'Guillemets simples\' et "Guillemets doubles"'
});
const fixture =
initWithTemplate(AppComp, `<div i18n>'Single quotes' and "Double quotes"</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual('<div>\'Guillemets simples\' et "Guillemets doubles"</div>');
});
it('should correctly bind to context in nested template', () => {
loadTranslations({[computeMsgId('Item {$INTERPOLATION}')]: 'Article {$INTERPOLATION}'});
const fixture = initWithTemplate(AppComp, `
<div *ngFor='let id of items'>
<div i18n>Item {{ id }}</div>
</div>
`);
const element = fixture.nativeElement;
for (let i = 0; i < element.children.length; i++) {
const child = element.children[i];
expect(child).toHaveText(`Article ${i + 1}`);
}
});
it('should ignore i18n attributes on self-closing tags', () => {
const fixture = initWithTemplate(AppComp, '<img src="logo.png" i18n>');
expect(fixture.nativeElement.innerHTML).toBe(`<img src="logo.png">`);
});
it('should handle i18n attribute with directives', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
const fixture = initWithTemplate(AppComp, `<div *ngIf="visible" i18n>Hello {{ name }}</div>`);
expect(fixture.nativeElement.firstChild).toHaveText('Bonjour Angular');
});
it('should work correctly with event listeners', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
@Component(
{selector: 'app-comp', template: `<div i18n (click)="onClick()">Hello {{ name }}</div>`})
class ListenerComp {
name = `Angular`;
clicks = 0;
onClick() { this.clicks++; }
}
TestBed.configureTestingModule({declarations: [ListenerComp]});
const fixture = TestBed.createComponent(ListenerComp);
fixture.detectChanges();
const element = fixture.nativeElement.firstChild;
const instance = fixture.componentInstance;
expect(element).toHaveText('Bonjour Angular');
expect(instance.clicks).toBe(0);
element.click();
expect(instance.clicks).toBe(1);
});
it('should support local refs inside i18n block', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_CONTAINER} One {$CLOSE_TAG_NG_CONTAINER}' +
'{$START_TAG_DIV} Two {$CLOSE_TAG_DIV}' +
'{$START_TAG_SPAN} Three {$CLOSE_TAG_SPAN}' +
'{$START_TAG_NG_TEMPLATE} Four {$CLOSE_TAG_NG_TEMPLATE}' +
'{$START_TAG_NG_CONTAINER_1}{$CLOSE_TAG_NG_CONTAINER}')]:
'{$START_TAG_NG_CONTAINER} Une {$CLOSE_TAG_NG_CONTAINER}' +
'{$START_TAG_DIV} Deux {$CLOSE_TAG_DIV}' +
'{$START_TAG_SPAN} Trois {$CLOSE_TAG_SPAN}' +
'{$START_TAG_NG_TEMPLATE} Quatre {$CLOSE_TAG_NG_TEMPLATE}' +
'{$START_TAG_NG_CONTAINER_1}{$CLOSE_TAG_NG_CONTAINER}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-container #localRefA> One </ng-container>
<div #localRefB> Two </div>
<span #localRefC> Three </span>
<ng-template #localRefD> Four </ng-template>
<ng-container *ngTemplateOutlet="localRefD"></ng-container>
</div>
`);
expect(fixture.nativeElement.textContent).toBe(' Une Deux Trois Quatre ');
});
it('should handle local refs correctly in case an element is removed in translation', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_CONTAINER} One {$CLOSE_TAG_NG_CONTAINER}' +
'{$START_TAG_DIV} Two {$CLOSE_TAG_DIV}' +
'{$START_TAG_SPAN} Three {$CLOSE_TAG_SPAN}')]: '{$START_TAG_DIV} Deux {$CLOSE_TAG_DIV}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-container #localRefA> One </ng-container>
<div #localRefB> Two </div>
<span #localRefC> Three </span>
</div>
`);
expect(fixture.nativeElement.textContent).toBe(' Deux ');
});
describe('ng-container and ng-template support', () => {
it('should support ng-container', () => {
loadTranslations({[computeMsgId('text')]: 'texte'});
const fixture = initWithTemplate(AppComp, `<ng-container i18n>text</ng-container>`);
expect(fixture.nativeElement.innerHTML).toEqual(`texte<!--ng-container-->`);
});
it('should handle single translation message within ng-template', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
const fixture =
initWithTemplate(AppComp, `<ng-template i18n tplRef>Hello {{ name }}</ng-template>`);
const element = fixture.nativeElement;
expect(element).toHaveText('Bonjour Angular');
});
// Note: applying structural directives to <ng-template> is typically user error, but it
// is technically allowed, so we need to support it.
it('should handle structural directives on ng-template', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
const fixture = initWithTemplate(
AppComp, `<ng-template *ngIf="name" i18n tplRef>Hello {{ name }}</ng-template>`);
const element = fixture.nativeElement;
expect(element).toHaveText('Bonjour Angular');
});
it('should be able to act as child elements inside i18n block (plain text content)', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_TEMPLATE} Hello {$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER} Bye {$CLOSE_TAG_NG_CONTAINER}',
'')]:
'{$START_TAG_NG_TEMPLATE} Bonjour {$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER} Au revoir {$CLOSE_TAG_NG_CONTAINER}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-template tplRef>
Hello
</ng-template>
<ng-container>
Bye
</ng-container>
</div>
`);
const element = fixture.nativeElement.firstChild;
expect(element.textContent.replace(/\s+/g, ' ').trim()).toBe('Bonjour Au revoir');
});
it('should be able to act as child elements inside i18n block (text + tags)', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_TEMPLATE}{$START_TAG_SPAN}Hello{$CLOSE_TAG_SPAN}{$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER}{$START_TAG_SPAN}Hello{$CLOSE_TAG_SPAN}{$CLOSE_TAG_NG_CONTAINER}',
'')]:
'{$START_TAG_NG_TEMPLATE}{$START_TAG_SPAN}Bonjour{$CLOSE_TAG_SPAN}{$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER}{$START_TAG_SPAN}Bonjour{$CLOSE_TAG_SPAN}{$CLOSE_TAG_NG_CONTAINER}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-template tplRef>
<span>Hello</span>
</ng-template>
<ng-container>
<span>Hello</span>
</ng-container>
</div>
`);
const element = fixture.nativeElement;
const spans = element.getElementsByTagName('span');
for (let i = 0; i < spans.length; i++) {
expect(spans[i]).toHaveText('Bonjour');
}
});
it('should be able to act as child elements inside i18n block (text + pipes)', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_TEMPLATE}Hello {$INTERPOLATION}{$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER}Bye {$INTERPOLATION}{$CLOSE_TAG_NG_CONTAINER}',
'')]:
'{$START_TAG_NG_TEMPLATE}Hej {$INTERPOLATION}{$CLOSE_TAG_NG_TEMPLATE}{$START_TAG_NG_CONTAINER}Vi ses {$INTERPOLATION}{$CLOSE_TAG_NG_CONTAINER}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-template tplRef>Hello {{name | uppercase}}</ng-template>
<ng-container>Bye {{name | uppercase}}</ng-container>
</div>
`);
const element = fixture.nativeElement.firstChild;
expect(element.textContent.replace(/\s+/g, ' ').trim()).toBe('Hej ANGULARVi ses ANGULAR');
});
it('should be able to handle deep nested levels with templates', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_SPAN} Hello - 1 {$CLOSE_TAG_SPAN}{$START_TAG_SPAN_1} Hello - 2 {$START_TAG_SPAN_1} Hello - 3 {$START_TAG_SPAN_1} Hello - 4 {$CLOSE_TAG_SPAN}{$CLOSE_TAG_SPAN}{$CLOSE_TAG_SPAN}{$START_TAG_SPAN} Hello - 5 {$CLOSE_TAG_SPAN}',
'')]:
'{$START_TAG_SPAN} Bonjour - 1 {$CLOSE_TAG_SPAN}{$START_TAG_SPAN_1} Bonjour - 2 {$START_TAG_SPAN_1} Bonjour - 3 {$START_TAG_SPAN_1} Bonjour - 4 {$CLOSE_TAG_SPAN}{$CLOSE_TAG_SPAN}{$CLOSE_TAG_SPAN}{$START_TAG_SPAN} Bonjour - 5 {$CLOSE_TAG_SPAN}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<span>
Hello - 1
</span>
<span *ngIf="visible">
Hello - 2
<span *ngIf="visible">
Hello - 3
<span *ngIf="visible">
Hello - 4
</span>
</span>
</span>
<span>
Hello - 5
</span>
</div>
`);
const element = fixture.nativeElement;
const spans = element.getElementsByTagName('span');
for (let i = 0; i < spans.length; i++) {
expect(spans[i].innerHTML).toContain(`Bonjour - ${i + 1}`);
}
});
it('should handle self-closing tags as content', () => {
loadTranslations({
[computeMsgId('{$START_TAG_SPAN}My logo{$TAG_IMG}{$CLOSE_TAG_SPAN}')]:
'{$START_TAG_SPAN}Mon logo{$TAG_IMG}{$CLOSE_TAG_SPAN}'
});
const content = `My logo<img src="logo.png" title="Logo">`;
const fixture = initWithTemplate(AppComp, `
<ng-container i18n>
<span>${content}</span>
</ng-container>
<ng-template i18n tplRef>
<span>${content}</span>
</ng-template>
`);
const element = fixture.nativeElement;
const spans = element.getElementsByTagName('span');
for (let i = 0; i < spans.length; i++) {
const child = spans[i];
expect(child).toHaveText('Mon logo');
}
});
it('should correctly find context for an element inside i18n section in <ng-template>', () => {
loadTranslations({
[computeMsgId('{$START_LINK}Not logged in{$CLOSE_LINK}')]:
'{$START_LINK}Not logged in{$CLOSE_LINK}'
});
@Directive({selector: '[myDir]'})
class Dir {
condition = true;
}
@Component({
selector: 'my-cmp',
template: `
<div *ngIf="isLogged; else notLoggedIn">
<span>Logged in</span>
</div>
<ng-template #notLoggedIn i18n>
<a myDir>Not logged in</a>
</ng-template>
`,
})
class Cmp {
isLogged = false;
}
TestBed.configureTestingModule({
declarations: [Cmp, Dir],
});
const fixture = TestBed.createComponent(Cmp);
fixture.detectChanges();
const a = fixture.debugElement.query(By.css('a'));
const dir = a.injector.get(Dir);
expect(dir.condition).toEqual(true);
});
});
describe('should support ICU expressions', () => {
it('with no root node', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {dix} 20 {vingt} other {autre}}'
});
const fixture =
initWithTemplate(AppComp, `{count, select, 10 {ten} 20 {twenty} other {other}}`);
const element = fixture.nativeElement;
expect(element).toHaveText('autre');
});
it('with no root node and text surrounding ICU', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {Ten} 20 {Twenty} other {Other}}')]:
'{VAR_SELECT, select, 10 {Dix} 20 {Vingt} other {Autre}}'
});
const fixture = initWithTemplate(AppComp, `
ICU start -->
{count, select, 10 {Ten} 20 {Twenty} other {Other}}
<-- ICU end
`);
const element = fixture.nativeElement;
expect(element.textContent).toContain('ICU start --> Autre <-- ICU end');
});
it('with no root node and text and DOM nodes surrounding ICU', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {Ten} 20 {Twenty} other {Other}}')]:
'{VAR_SELECT, select, 10 {Dix} 20 {Vingt} other {Autre}}'
});
const fixture = initWithTemplate(AppComp, `
<span>ICU start --> </span>
{count, select, 10 {Ten} 20 {Twenty} other {Other}}
<-- ICU end
`);
const element = fixture.nativeElement;
expect(element.textContent).toContain('ICU start --> Autre <-- ICU end');
});
it('with no i18n tag', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {dix} 20 {vingt} other {autre}}'
});
const fixture = initWithTemplate(
AppComp, `<div>{count, select, 10 {ten} 20 {twenty} other {other}}</div>`);
const element = fixture.nativeElement;
expect(element).toHaveText('autre');
});
it('multiple', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {no {START_BOLD_TEXT}emails{CLOSE_BOLD_TEXT}!} =1 {one {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
'')]:
'{VAR_PLURAL, plural, =0 {aucun {START_BOLD_TEXT}email{CLOSE_BOLD_TEXT}!} =1 {un {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
[computeMsgId('{VAR_SELECT, select, other {({INTERPOLATION})}}')]:
'{VAR_SELECT, select, other {({INTERPOLATION})}}',
[computeMsgId('{$ICU} - {$ICU_1}')]: '{$ICU} - {$ICU_1}',
});
const fixture = initWithTemplate(AppComp, `<div i18n>{count, plural,
=0 {no <b>emails</b>!}
=1 {one <i>email</i>}
other {{{count}} <span title="{{name}}">emails</span>}
} - {name, select,
other {({{name}})}
}</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>aucun <b>email</b>!<!--ICU 7--> - (Angular)<!--ICU 13--></div>`);
fixture.componentRef.instance.count = 4;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div>4 <span title="Angular">emails</span><!--ICU 7--> - (Angular)<!--ICU 13--></div>`);
fixture.componentRef.instance.count = 0;
fixture.componentRef.instance.name = 'John';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>aucun <b>email</b>!<!--ICU 7--> - (John)<!--ICU 13--></div>`);
});
it('with custom interpolation config', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} other {{INTERPOLATION}}}')]:
'{VAR_SELECT, select, 10 {dix} other {{INTERPOLATION}}}'
});
const interpolation = ['{%', '%}'] as[string, string];
TestBed.overrideComponent(AppComp, {set: {interpolation}});
const fixture =
initWithTemplate(AppComp, `<div i18n>{count, select, 10 {ten} other {{% name %}}}</div>`);
expect(fixture.nativeElement).toHaveText(`Angular`);
});
it('inside HTML elements', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {no {START_BOLD_TEXT}emails{CLOSE_BOLD_TEXT}!} =1 {one {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
'')]:
'{VAR_PLURAL, plural, =0 {aucun {START_BOLD_TEXT}email{CLOSE_BOLD_TEXT}!} =1 {un {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
[computeMsgId('{VAR_SELECT, select, other {({INTERPOLATION})}}')]:
'{VAR_SELECT, select, other {({INTERPOLATION})}}',
[computeMsgId(
'{$START_TAG_SPAN_1}{$ICU}{$CLOSE_TAG_SPAN} - ' +
'{$START_TAG_SPAN_1}{$ICU_1}{$CLOSE_TAG_SPAN}')]:
'{$START_TAG_SPAN_1}{$ICU}{$CLOSE_TAG_SPAN} - {$START_TAG_SPAN_1}{$ICU_1}{$CLOSE_TAG_SPAN}',
});
const fixture = initWithTemplate(AppComp, `<div i18n><span>{count, plural,
=0 {no <b>emails</b>!}
=1 {one <i>email</i>}
other {{{count}} <span title="{{name}}">emails</span>}
}</span> - <span>{name, select,
other {({{name}})}
}</span></div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><span>aucun <b>email</b>!<!--ICU 9--></span> - <span>(Angular)<!--ICU 15--></span></div>`);
fixture.componentRef.instance.count = 4;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><span>4 <span title="Angular">emails</span><!--ICU 9--></span> - <span>(Angular)<!--ICU 15--></span></div>`);
fixture.componentRef.instance.count = 0;
fixture.componentRef.instance.name = 'John';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><span>aucun <b>email</b>!<!--ICU 9--></span> - <span>(John)<!--ICU 15--></span></div>`);
});
it('inside template directives', () => {
loadTranslations({
[computeMsgId('{$START_TAG_SPAN}{$ICU}{$CLOSE_TAG_SPAN}')]:
'{$START_TAG_SPAN}{$ICU}{$CLOSE_TAG_SPAN}',
[computeMsgId('{VAR_SELECT, select, other {({INTERPOLATION})}}')]:
'{VAR_SELECT, select, other {({INTERPOLATION})}}'
});
const fixture = initWithTemplate(AppComp, `<div i18n><span *ngIf="visible">{name, select,
other {({{name}})}
}</span></div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div><span>(Angular)<!--ICU 4--></span><!--bindings={
"ng-reflect-ng-if": "true"
}--></div>`);
fixture.componentRef.instance.visible = false;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div><!--bindings={
"ng-reflect-ng-if": "false"
}--></div>`);
});
it('inside ng-container', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, other {({INTERPOLATION})}}')]:
'{VAR_SELECT, select, other {({INTERPOLATION})}}'
});
const fixture = initWithTemplate(AppComp, `<ng-container i18n>{name, select,
other {({{name}})}
}</ng-container>`);
expect(fixture.nativeElement.innerHTML).toEqual(`(Angular)<!--ICU 4--><!--ng-container-->`);
});
it('inside <ng-template>', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {dix} 20 {vingt} other {autre}}'
});
const fixture = initWithTemplate(
AppComp, `
<ng-template i18n tplRef>` +
`{count, select, 10 {ten} 20 {twenty} other {other}}` +
`</ng-template>
`);
const element = fixture.nativeElement;
expect(element).toHaveText('autre');
});
it('nested', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {zero} other {{INTERPOLATION} {VAR_SELECT, select, cat {cats} dog {dogs} other {animals}}!}}',
'')]:
'{VAR_PLURAL, plural, =0 {zero} other {{INTERPOLATION} {VAR_SELECT, select, cat {chats} dog {chiens} other {animaux}}!}}'
});
const fixture = initWithTemplate(AppComp, `<div i18n>{count, plural,
=0 {zero}
other {{{count}} {name, select,
cat {cats}
dog {dogs}
other {animals}
}!}
}</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>zero<!--ICU 5--></div>`);
fixture.componentRef.instance.count = 4;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>4 animaux<!--nested ICU 0-->!<!--ICU 5--></div>`);
});
it('nested with interpolations in "other" blocks', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {zero} =2 {{INTERPOLATION} {VAR_SELECT, select, cat {cats} dog {dogs} other {animals}}!} other {other - {INTERPOLATION}}}',
'')]:
'{VAR_PLURAL, plural, =0 {zero} =2 {{INTERPOLATION} {VAR_SELECT, select, cat {chats} dog {chiens} other {animaux}}!} other {autre - {INTERPOLATION}}}'
});
const fixture = initWithTemplate(AppComp, `<div i18n>{count, plural,
=0 {zero}
=2 {{{count}} {name, select,
cat {cats}
dog {dogs}
other {animals}
}!}
other {other - {{count}}}
}</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>zero<!--ICU 5--></div>`);
fixture.componentRef.instance.count = 2;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<div>2 animaux<!--nested ICU 0-->!<!--ICU 5--></div>`);
fixture.componentRef.instance.count = 4;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div>autre - 4<!--ICU 5--></div>`);
});
it('should return the correct plural form for ICU expressions when using a specific locale', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {no email} =one {one email} =few {a few emails} =other {lots of emails}}')]:
'{VAR_PLURAL, plural, =0 {no email} =one {one email} =few {a few emails} =other {lots of emails}}'
});
registerLocaleData(localeRo);
TestBed.configureTestingModule({providers: [{provide: LOCALE_ID, useValue: 'ro'}]});
// We could also use `TestBed.overrideProvider(LOCALE_ID, {useValue: 'ro'});`
const fixture = initWithTemplate(AppComp, `
{count, plural,
=0 {no email}
=one {one email}
=few {a few emails}
=other {lots of emails}
}`);
expect(fixture.nativeElement.innerHTML).toEqual('no email<!--ICU 2-->');
// Change detection cycle, no model changes
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('no email<!--ICU 2-->');
fixture.componentInstance.count = 3;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('a few emails<!--ICU 2-->');
fixture.componentInstance.count = 1;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('one email<!--ICU 2-->');
fixture.componentInstance.count = 10;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('a few emails<!--ICU 2-->');
fixture.componentInstance.count = 20;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('lots of emails<!--ICU 2-->');
fixture.componentInstance.count = 0;
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual('no email<!--ICU 2-->');
});
it('projection', () => {
loadTranslations({
[computeMsgId('{VAR_PLURAL, plural, =1 {one} other {at least {INTERPOLATION} .}}')]:
'{VAR_PLURAL, plural, =1 {one} other {at least {INTERPOLATION} .}}'
});
@Component({selector: 'child', template: '<div><ng-content></ng-content></div>'})
class Child {
}
@Component({
selector: 'parent',
template: `
<child i18n>{
value // i18n(ph = "blah"),
plural,
=1 {one}
other {at least {{value}} .}
}</child>`
})
class Parent {
value = 3;
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toContain('at least');
});
it('with empty values', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {} 20 {twenty} other {other}}'
});
const fixture = initWithTemplate(AppComp, `{count, select, 10 {} 20 {twenty} other {other}}`);
const element = fixture.nativeElement;
expect(element).toHaveText('other');
});
it('inside a container when creating a view via vcr.createEmbeddedView', () => {
loadTranslations({
[computeMsgId('{VAR_PLURAL, plural, =1 {ONE} other {OTHER}}')]:
'{VAR_PLURAL, plural, =1 {ONE} other {OTHER}}'
});
@Directive({
selector: '[someDir]',
})
class Dir {
constructor(
private readonly viewContainerRef: ViewContainerRef,
private readonly templateRef: TemplateRef<any>) {}
ngOnInit() { this.viewContainerRef.createEmbeddedView(this.templateRef); }
}
@Component({
selector: 'my-cmp',
template: `
<div *someDir>
<ng-content></ng-content>
</div>
`,
})
class Cmp {
}
@Component({
selector: 'my-app',
template: `
<my-cmp i18n="test" *ngIf="condition">{
count,
plural,
=1 {ONE}
other {OTHER}
}</my-cmp>
`,
})
class App {
count = 1;
condition = true;
}
TestBed.configureTestingModule({
declarations: [App, Cmp, Dir],
});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toContain('<my-cmp><div>ONE<!--ICU 13--></div><!--container--></my-cmp>');
fixture.componentRef.instance.count = 2;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toContain('<my-cmp><div>OTHER<!--ICU 13--></div><!--container--></my-cmp>');
// destroy component
fixture.componentInstance.condition = false;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.textContent).toBe('');
// render it again and also change ICU case
fixture.componentInstance.condition = true;
fixture.componentInstance.count = 1;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toContain('<my-cmp><div>ONE<!--ICU 13--></div><!--container--></my-cmp>');
});
it('with nested ICU expression and inside a container when creating a view via vcr.createEmbeddedView',
() => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =1 {ONE} other {{INTERPOLATION} ' +
'{VAR_SELECT, select, cat {cats} dog {dogs} other {animals}}!}}')]:
'{VAR_PLURAL, plural, =1 {ONE} other {{INTERPOLATION} ' +
'{VAR_SELECT, select, cat {cats} dog {dogs} other {animals}}!}}'
});
let dir: Dir|null = null;
@Directive({
selector: '[someDir]',
})
class Dir {
constructor(
private readonly viewContainerRef: ViewContainerRef,
private readonly templateRef: TemplateRef<any>) {
dir = this;
}
attachEmbeddedView() { this.viewContainerRef.createEmbeddedView(this.templateRef); }
}
@Component({
selector: 'my-cmp',
template: `
<div *someDir>
<ng-content></ng-content>
</div>
`,
})
class Cmp {
}
@Component({
selector: 'my-app',
template: `
<my-cmp i18n="test">{
count,
plural,
=1 {ONE}
other {{{count}} {name, select,
cat {cats}
dog {dogs}
other {animals}
}!}
}</my-cmp>
`,
})
class App {
count = 1;
}
TestBed.configureTestingModule({
declarations: [App, Cmp, Dir],
});
const fixture = TestBed.createComponent(App);
fixture.componentRef.instance.count = 2;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toBe('<my-cmp><!--container--></my-cmp>');
dir !.attachEmbeddedView();
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toBe(
'<my-cmp><div>2 animals<!--nested ICU 0-->!<!--ICU 15--></div><!--container--></my-cmp>');
fixture.componentRef.instance.count = 1;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML)
.toBe('<my-cmp><div>ONE<!--ICU 15--></div><!--container--></my-cmp>');
});
it('with nested containers', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, A {A } B {B } other {C }}')]:
'{VAR_SELECT, select, A {A } B {B } other {C }}',
[computeMsgId('{VAR_SELECT, select, A1 {A1 } B1 {B1 } other {C1 }}')]:
'{VAR_SELECT, select, A1 {A1 } B1 {B1 } other {C1 }}',
[computeMsgId(' {$ICU} ')]: ' {$ICU} ',
});
@Component({
selector: 'comp',
template: `
<ng-container [ngSwitch]="visible">
<ng-container *ngSwitchCase="isVisible()" i18n>
{type, select, A { A } B { B } other { C }}
</ng-container>
<ng-container *ngSwitchCase="!isVisible()" i18n>
{type, select, A1 { A1 } B1 { B1 } other { C1 }}
</ng-container>
</ng-container>
`,
})
class Comp {
type = 'A';
visible = true;
isVisible() { return true; }
}
TestBed.configureTestingModule({declarations: [Comp]});
const fixture = TestBed.createComponent(Comp);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).toContain('A');
fixture.componentInstance.visible = false;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).not.toContain('A');
expect(fixture.debugElement.nativeElement.innerHTML).toContain('C1');
});
it('with named interpolations', () => {
loadTranslations({
[computeMsgId(
'{VAR_SELECT, select, A {A - {PH_A}} ' +
'B {B - {PH_B}} other {other - {PH_WITH_SPACES}}}')]:
'{VAR_SELECT, select, A {A (translated) - {PH_A}} ' +
'B {B (translated) - {PH_B}} other {other (translated) - {PH_WITH_SPACES}}}',
});
@Component({
selector: 'comp',
template: `
<ng-container i18n>{
type,
select,
A {A - {{ typeA // i18n(ph="PH_A") }}}
B {B - {{ typeB // i18n(ph="PH_B") }}}
other {other - {{ typeC // i18n(ph="PH WITH SPACES") }}}
}</ng-container>
`,
})
class Comp {
type = 'A';
typeA = 'Type A';
typeB = 'Type B';
typeC = 'Type C';
}
TestBed.configureTestingModule({declarations: [Comp]});
const fixture = TestBed.createComponent(Comp);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).toContain('A (translated) - Type A');
fixture.componentInstance.type = 'C'; // trigger "other" case
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).not.toContain('A (translated) - Type A');
expect(fixture.debugElement.nativeElement.innerHTML).toContain('other (translated) - Type C');
});
it('should work inside an ngTemplateOutlet inside an ngFor', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, A {A } B {B } other {other - {PH_WITH_SPACES}}}')]:
'{VAR_SELECT, select, A {A } B {B } other {other - {PH_WITH_SPACES}}}',
[computeMsgId('{$ICU} ')]: '{$ICU} '
});
@Component({
selector: 'app',
template: `
<ng-template #myTemp i18n let-type>{
type,
select,
A {A }
B {B }
other {other - {{ typeC // i18n(ph="PH WITH SPACES") }}}
}
</ng-template>
<div *ngFor="let type of types">
<ng-container *ngTemplateOutlet="myTemp; context: {$implicit: type}">
</ng-container>
</div>
`
})
class AppComponent {
types = ['A', 'B', 'C'];
}
TestBed.configureTestingModule({declarations: [AppComponent]});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).toContain('A');
expect(fixture.debugElement.nativeElement.innerHTML).toContain('B');
});
it('should use metadata from container element if a message is a single ICU', () => {
loadTranslations({idA: '{VAR_SELECT, select, 1 {un} other {plus d\'un}}'});
@Component({
selector: 'app',
template: `
<div i18n="@@idA">{count, select, 1 {one} other {more than one}}</div>
`
})
class AppComponent {
count = 2;
}
TestBed.configureTestingModule({declarations: [AppComponent]});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement.innerHTML).toContain('plus d\'un');
});
it('should support ICUs without "other" cases', () => {
loadTranslations({
idA: '{VAR_SELECT, select, 1 {un (select)} 2 {deux (select)}}',
idB: '{VAR_PLURAL, plural, =1 {un (plural)} =2 {deux (plural)}}',
});
@Component({
selector: 'app',
template: `
<div i18n="@@idA">{count, select, 1 {one (select)} 2 {two (select)}}</div> -
<div i18n="@@idB">{count, plural, =1 {one (plural)} =2 {two (plural)}}</div>
`
})
class AppComponent {
count = 1;
}
TestBed.configureTestingModule({declarations: [AppComponent]});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toBe('un (select) - un (plural)');
fixture.componentInstance.count = 3;
fixture.detectChanges();
// there is no ICU case for count=3
expect(fixture.nativeElement.textContent.trim()).toBe('-');
fixture.componentInstance.count = 4;
fixture.detectChanges();
// there is no ICU case for count=4, making sure content is still empty
expect(fixture.nativeElement.textContent.trim()).toBe('-');
fixture.componentInstance.count = 2;
fixture.detectChanges();
// check switching to an existing case after processing an ICU without matching case
expect(fixture.nativeElement.textContent.trim()).toBe('deux (select) - deux (plural)');
fixture.componentInstance.count = 1;
fixture.detectChanges();
// check that we can go back to the first ICU case
expect(fixture.nativeElement.textContent).toBe('un (select) - un (plural)');
});
it('should support nested ICUs without "other" cases', () => {
loadTranslations({
idA: '{VAR_SELECT_1, select, A {{VAR_SELECT, select, ' +
'1 {un (select)} 2 {deux (select)}}} other {}}',
idB: '{VAR_SELECT, select, A {{VAR_PLURAL, plural, ' +
'=1 {un (plural)} =2 {deux (plural)}}} other {}}',
});
@Component({
selector: 'app',
template: `
<div i18n="@@idA">{
type, select,
A {{count, select, 1 {one (select)} 2 {two (select)}}}
other {}
}</div> -
<div i18n="@@idB">{
type, select,
A {{count, plural, =1 {one (plural)} =2 {two (plural)}}}
other {}
}</div>
`
})
class AppComponent {
type = 'A';
count = 1;
}
TestBed.configureTestingModule({declarations: [AppComponent]});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toBe('un (select) - un (plural)');
fixture.componentInstance.count = 3;
fixture.detectChanges();
// there is no case for count=3 in nested ICU
expect(fixture.nativeElement.textContent.trim()).toBe('-');
fixture.componentInstance.count = 4;
fixture.detectChanges();
// there is no case for count=4 in nested ICU, making sure content is still empty
expect(fixture.nativeElement.textContent.trim()).toBe('-');
fixture.componentInstance.count = 2;
fixture.detectChanges();
// check switching to an existing case after processing nested ICU without matching case
expect(fixture.nativeElement.textContent.trim()).toBe('deux (select) - deux (plural)');
fixture.componentInstance.count = 1;
fixture.detectChanges();
// check that we can go back to the first case in nested ICU
expect(fixture.nativeElement.textContent).toBe('un (select) - un (plural)');
fixture.componentInstance.type = 'B';
fixture.detectChanges();
// check that nested ICU is removed if root ICU case has changed
expect(fixture.nativeElement.textContent.trim()).toBe('-');
});
it('should support ICUs with pipes', () => {
loadTranslations({
idA: '{VAR_SELECT, select, 1 {{INTERPOLATION} article} 2 {deux articles}}',
});
@Component({
selector: 'app',
template: `
<div i18n="@@idA">{count$ | async, select, 1 {{{count$ | async}} item} 2 {two items}}</div>
`
})
class AppComponent {
count$ = new BehaviorSubject<number>(1);
}
TestBed.configureTestingModule({
imports: [CommonModule],
declarations: [AppComponent],
});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toBe('1 article');
fixture.componentInstance.count$.next(3);
fixture.detectChanges();
// there is no ICU case for count=3, expecting empty content
expect(fixture.nativeElement.textContent.trim()).toBe('');
fixture.componentInstance.count$.next(2);
fixture.detectChanges();
// checking the second ICU case
expect(fixture.nativeElement.textContent.trim()).toBe('deux articles');
});
});
describe('should support attributes', () => {
it('text', () => {
loadTranslations({[computeMsgId('text')]: 'texte'});
const fixture = initWithTemplate(AppComp, `<div i18n i18n-title title='text'></div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div title="texte"></div>`);
});
it('interpolations', () => {
loadTranslations({[computeMsgId('hello {$INTERPOLATION}')]: 'bonjour {$INTERPOLATION}'});
const fixture =
initWithTemplate(AppComp, `<div i18n i18n-title title="hello {{name}}"></div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div title="bonjour Angular"></div>`);
fixture.componentRef.instance.name = 'John';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<div title="bonjour John"></div>`);
});
it('with pipes', () => {
loadTranslations({[computeMsgId('hello {$INTERPOLATION}')]: 'bonjour {$INTERPOLATION}'});
const fixture = initWithTemplate(
AppComp, `<div i18n i18n-title title="hello {{name | uppercase}}"></div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div title="bonjour ANGULAR"></div>`);
});
it('multiple attributes', () => {
loadTranslations({[computeMsgId('hello {$INTERPOLATION}')]: 'bonjour {$INTERPOLATION}'});
const fixture = initWithTemplate(
AppComp,
`<input i18n i18n-title title="hello {{name}}" i18n-placeholder placeholder="hello {{name}}">`);
expect(fixture.nativeElement.innerHTML)
.toEqual(`<input title="bonjour Angular" placeholder="bonjour Angular">`);
fixture.componentRef.instance.name = 'John';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<input title="bonjour John" placeholder="bonjour John">`);
});
it('on removed elements', () => {
loadTranslations({
[computeMsgId('text')]: 'texte',
[computeMsgId('{$START_TAG_SPAN}content{$CLOSE_TAG_SPAN}')]: 'contenu',
});
const fixture =
initWithTemplate(AppComp, `<div i18n><span i18n-title title="text">content</span></div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>contenu</div>`);
});
it('with custom interpolation config', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}', 'm')]: 'Bonjour {$INTERPOLATION}'});
const interpolation = ['{%', '%}'] as[string, string];
TestBed.overrideComponent(AppComp, {set: {interpolation}});
const fixture =
initWithTemplate(AppComp, `<div i18n-title="m|d" title="Hello {% name %}"></div>`);
const element = fixture.nativeElement.firstChild;
expect(element.title).toBe('Bonjour Angular');
});
it('in nested template', () => {
loadTranslations({[computeMsgId('Item {$INTERPOLATION}', 'm')]: 'Article {$INTERPOLATION}'});
const fixture = initWithTemplate(AppComp, `
<div *ngFor='let item of [1,2,3]'>
<div i18n-title='m|d' title='Item {{ item }}'></div>
</div>`);
const element = fixture.nativeElement;
for (let i = 0; i < element.children.length; i++) {
const child = element.children[i];
expect((child as any).innerHTML).toBe(`<div title="Article ${i + 1}"></div>`);
}
});
it('should add i18n attributes on self-closing tags', () => {
loadTranslations({[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}'});
const fixture =
initWithTemplate(AppComp, `<img src="logo.png" i18n-title title="Hello {{ name }}">`);
const element = fixture.nativeElement.firstChild;
expect(element.title).toBe('Bonjour Angular');
});
it('should process i18n attributes on explicit <ng-template> elements', () => {
const titleDirInstances: TitleDir[] = [];
loadTranslations({[computeMsgId('Hello')]: 'Bonjour'});
@Directive({
selector: '[title]',
})
class TitleDir {
@Input() title = '';
constructor() { titleDirInstances.push(this); }
}
@Component({
selector: 'comp',
template: '<ng-template i18n-title title="Hello"></ng-template>',
})
class Comp {
}
TestBed.configureTestingModule({
declarations: [Comp, TitleDir],
});
const fixture = TestBed.createComponent(Comp);
fixture.detectChanges();
// make sure we only match `TitleDir` once
expect(titleDirInstances.length).toBe(1);
expect(titleDirInstances[0].title).toBe('Bonjour');
});
it('should match directive only once in case i18n attrs are present on inline template', () => {
const titleDirInstances: TitleDir[] = [];
loadTranslations({[computeMsgId('Hello')]: 'Bonjour'});
@Directive({selector: '[title]'})
class TitleDir {
@Input() title: string = '';
constructor(public elRef: ElementRef) { titleDirInstances.push(this); }
}
@Component({
selector: 'my-cmp',
template: `
<button *ngIf="true" i18n-title title="Hello"></button>
`,
})
class Cmp {
}
TestBed.configureTestingModule({
imports: [CommonModule],
declarations: [Cmp, TitleDir],
});
const fixture = TestBed.createComponent(Cmp);
fixture.detectChanges();
// make sure we only match `TitleDir` once and on the right element
expect(titleDirInstances.length).toBe(1);
expect(titleDirInstances[0].elRef.nativeElement instanceof HTMLButtonElement).toBeTruthy();
expect(titleDirInstances[0].title).toBe('Bonjour');
});
it('should apply i18n attributes during second template pass', () => {
loadTranslations({[computeMsgId('Set')]: 'Set'});
@Directive({
selector: '[test]',
inputs: ['test'],
exportAs: 'dir',
})
class Dir {
}
@Component({
selector: 'other',
template: `<div i18n #ref="dir" test="Set" i18n-test="This is also a test"></div>`
})
class Other {
}
@Component({
selector: 'blah',
template: `
<other></other>
<other></other>
`
})
class Cmp {
}
TestBed.configureTestingModule({
declarations: [Dir, Cmp, Other],
});
const fixture = TestBed.createComponent(Cmp);
fixture.detectChanges();
expect(fixture.debugElement.children[0].children[0].references.ref.test).toBe('Set');
expect(fixture.debugElement.children[1].children[0].references.ref.test).toBe('Set');
});
it('with complex expressions', () => {
loadTranslations({
[computeMsgId('{$INTERPOLATION} - {$INTERPOLATION_1} - {$INTERPOLATION_2}')]:
'{$INTERPOLATION} - {$INTERPOLATION_1} - {$INTERPOLATION_2} (fr)'
});
const fixture = initWithTemplate(AppComp, `
<div i18n-title title="{{ name | uppercase }} - {{ obj?.a?.b }} - {{ obj?.getA()?.b }}"></div>
`);
// the `obj` field is not yet defined, so 2nd and 3rd interpolations return empty strings
expect(fixture.nativeElement.firstChild.title).toEqual(`ANGULAR - - (fr)`);
fixture.componentRef.instance.obj = {
a: {b: 'value 1'},
getA: () => ({b: 'value 2'}),
};
fixture.detectChanges();
expect(fixture.nativeElement.firstChild.title).toEqual(`ANGULAR - value 1 - value 2 (fr)`);
});
it('should create corresponding ng-reflect properties', () => {
@Component({
selector: 'welcome',
template: '{{ messageText }}',
})
class WelcomeComp {
@Input() messageText !: string;
}
@Component({
template: `
<welcome
messageText="Hello"
i18n-messageText="Welcome message description">
</welcome>
`
})
class App {
}
TestBed.configureTestingModule({
declarations: [App, WelcomeComp],
});
loadTranslations({
[computeMsgId('Hello')]: 'Bonjour',
});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
const comp = fixture.debugElement.query(By.css('welcome'));
expect(comp.attributes['messagetext']).toBe('Bonjour');
expect(comp.attributes['ng-reflect-message-text']).toBe('Bonjour');
});
it('should support i18n attributes on <ng-container> elements', () => {
loadTranslations({[computeMsgId('Hello', 'meaning')]: 'Bonjour'});
@Directive({selector: '[mydir]'})
class Dir {
@Input() mydir: string = '';
}
@Component({
selector: 'my-cmp',
template: `
<ng-container i18n-mydir="meaning|description" mydir="Hello"></ng-container>
`,
})
class Cmp {
}
TestBed.configureTestingModule({
declarations: [Cmp, Dir],
});
const fixture = TestBed.createComponent(Cmp);
fixture.detectChanges();
const dir = fixture.debugElement.childNodes[0].injector.get(Dir);
expect(dir.mydir).toEqual('Bonjour');
});
});
it('should work with directives and host bindings', () => {
let directiveInstances: ClsDir[] = [];
@Directive({selector: '[test]'})
class ClsDir {
@HostBinding('className')
klass = 'foo';
constructor() { directiveInstances.push(this); }
}
@Component({
selector: `my-app`,
template: `
<div i18n test i18n-title title="start {{exp1}} middle {{exp2}} end" outer>
trad: {exp1, plural,
=0 {no <b title="none">emails</b>!}
=1 {one <i>email</i>}
other {{{exp1}} emails}
}
</div><div test inner></div>`
})
class MyApp {
exp1 = 1;
exp2 = 2;
}
TestBed.configureTestingModule({declarations: [ClsDir, MyApp]});
loadTranslations({
// Note that this translation switches the order of the expressions!
[computeMsgId('start {$INTERPOLATION} middle {$INTERPOLATION_1} end')]:
'début {$INTERPOLATION_1} milieu {$INTERPOLATION} fin',
[computeMsgId(
'{VAR_PLURAL, plural, =0 {no {START_BOLD_TEXT}emails{CLOSE_BOLD_TEXT}!} =1 {one {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} emails}}')]:
'{VAR_PLURAL, plural, =0 {aucun {START_BOLD_TEXT}email{CLOSE_BOLD_TEXT}!} =1 {un {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} emails}}',
[computeMsgId(' trad: {$ICU} ')]: ' traduction: {$ICU} '
});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
const outerDiv: HTMLElement = fixture.nativeElement.querySelector('div[outer]');
const innerDiv: HTMLElement = fixture.nativeElement.querySelector('div[inner]');
// Note that ideally we'd just compare the innerHTML here, but different browsers return
// the order of attributes differently. E.g. most browsers preserve the declaration order,
// but IE does not.
expect(outerDiv.getAttribute('title')).toBe('début 2 milieu 1 fin');
expect(outerDiv.getAttribute('class')).toBe('foo');
expect(outerDiv.textContent !.trim()).toBe('traduction: un email');
expect(innerDiv.getAttribute('class')).toBe('foo');
directiveInstances.forEach(instance => instance.klass = 'bar');
fixture.componentRef.instance.exp1 = 2;
fixture.componentRef.instance.exp2 = 3;
fixture.detectChanges();
expect(outerDiv.getAttribute('title')).toBe('début 3 milieu 2 fin');
expect(outerDiv.getAttribute('class')).toBe('bar');
expect(outerDiv.textContent !.trim()).toBe('traduction: 2 emails');
expect(innerDiv.getAttribute('class')).toBe('bar');
});
it('should handle i18n attribute with directive inputs', () => {
let calledTitle = false;
let calledValue = false;
@Component({selector: 'my-comp', template: ''})
class MyComp {
t !: string;
@Input()
get title() { return this.t; }
set title(title) {
calledTitle = true;
this.t = title;
}
@Input()
get value() { return this.val; }
set value(value: string) {
calledValue = true;
this.val = value;
}
val !: string;
}
TestBed.configureTestingModule({declarations: [AppComp, MyComp]});
loadTranslations({
[computeMsgId('Hello {$INTERPOLATION}')]: 'Bonjour {$INTERPOLATION}',
[computeMsgId('works')]: 'fonctionne',
});
const fixture = initWithTemplate(
AppComp,
`<my-comp i18n i18n-title title="works" i18n-value="hi" value="Hello {{name}}"></my-comp>`);
fixture.detectChanges();
const directive = fixture.debugElement.children[0].injector.get(MyComp);
expect(calledValue).toEqual(true);
expect(calledTitle).toEqual(true);
expect(directive.value).toEqual(`Bonjour Angular`);
expect(directive.title).toEqual(`fonctionne`);
});
it('should support adding/moving/removing nodes', () => {
loadTranslations({
[computeMsgId(
'{$START_TAG_DIV2}{$CLOSE_TAG_DIV2}' +
'{$START_TAG_DIV3}{$CLOSE_TAG_DIV3}' +
'{$START_TAG_DIV4}{$CLOSE_TAG_DIV4}' +
'{$START_TAG_DIV5}{$CLOSE_TAG_DIV5}' +
'{$START_TAG_DIV6}{$CLOSE_TAG_DIV6}' +
'{$START_TAG_DIV7}{$CLOSE_TAG_DIV7}' +
'{$START_TAG_DIV8}{$CLOSE_TAG_DIV8}')]: '{$START_TAG_DIV2}{$CLOSE_TAG_DIV2}' +
'{$START_TAG_DIV8}{$CLOSE_TAG_DIV8}' +
'{$START_TAG_DIV4}{$CLOSE_TAG_DIV4}' +
'{$START_TAG_DIV5}{$CLOSE_TAG_DIV5}Bonjour monde' +
'{$START_TAG_DIV3}{$CLOSE_TAG_DIV3}' +
'{$START_TAG_DIV7}{$CLOSE_TAG_DIV7}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<div2></div2>
<div3></div3>
<div4></div4>
<div5></div5>
<div6></div6>
<div7></div7>
<div8></div8>
</div>`);
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><div2></div2><div8></div8><div4></div4><div5></div5>Bonjour monde<div3></div3><div7></div7></div>`);
});
describe('projection', () => {
it('should project the translations', () => {
@Component({selector: 'child', template: '<p><ng-content></ng-content></p>'})
class Child {
}
@Component({
selector: 'parent',
template: `
<div i18n>
<child>I am projected from
<b i18n-title title="Child of {{name}}">{{name}}<remove-me-1></remove-me-1></b>
<remove-me-2></remove-me-2>
</child>
<remove-me-3></remove-me-3>
</div>`
})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Child of {$INTERPOLATION}')]: 'Enfant de {$INTERPOLATION}',
[computeMsgId(
'{$START_TAG_CHILD}I am projected from' +
' {$START_BOLD_TEXT}{$INTERPOLATION}{$START_TAG_REMOVE_ME_1}{$CLOSE_TAG_REMOVE_ME_1}{$CLOSE_BOLD_TEXT}' +
'{$START_TAG_REMOVE_ME_2}{$CLOSE_TAG_REMOVE_ME_2}' +
'{$CLOSE_TAG_CHILD}' +
'{$START_TAG_REMOVE_ME_3}{$CLOSE_TAG_REMOVE_ME_3}')]:
'{$START_TAG_CHILD}Je suis projeté depuis {$START_BOLD_TEXT}{$INTERPOLATION}{$CLOSE_BOLD_TEXT}{$CLOSE_TAG_CHILD}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><child><p>Je suis projeté depuis <b title="Enfant de Parent">Parent</b></p></child></div>`);
});
it('should project a translated i18n block', () => {
@Component({selector: 'child', template: '<p><ng-content></ng-content></p>'})
class Child {
}
@Component({
selector: 'parent',
template: `
<div>
<child>
<any></any>
<b i18n i18n-title title="Child of {{name}}">I am projected from {{name}}</b>
<any></any>
</child>
</div>`
})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Child of {$INTERPOLATION}')]: 'Enfant de {$INTERPOLATION}',
[computeMsgId('I am projected from {$INTERPOLATION}')]:
'Je suis projeté depuis {$INTERPOLATION}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<div><child><p><any></any><b title="Enfant de Parent">Je suis projeté depuis Parent</b><any></any></p></child></div>`);
// it should be able to render a new component with the same template code
const fixture2 = TestBed.createComponent(Parent);
fixture2.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(fixture2.nativeElement.innerHTML);
fixture2.componentRef.instance.name = 'Parent 2';
fixture2.detectChanges();
expect(fixture2.nativeElement.innerHTML)
.toEqual(
`<div><child><p><any></any><b title="Enfant de Parent 2">Je suis projeté depuis Parent 2</b><any></any></p></child></div>`);
// The first fixture should not have changed
expect(fixture.nativeElement.innerHTML).not.toEqual(fixture2.nativeElement.innerHTML);
});
it('should re-project translations when multiple projections', () => {
@Component({selector: 'grand-child', template: '<div><ng-content></ng-content></div>'})
class GrandChild {
}
@Component(
{selector: 'child', template: '<grand-child><ng-content></ng-content></grand-child>'})
class Child {
}
@Component({selector: 'parent', template: `<child i18n><b>Hello</b> World!</child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child, GrandChild]});
loadTranslations({
[computeMsgId('{$START_BOLD_TEXT}Hello{$CLOSE_BOLD_TEXT} World!')]:
'{$START_BOLD_TEXT}Bonjour{$CLOSE_BOLD_TEXT} monde!'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual('<child><grand-child><div><b>Bonjour</b> monde!</div></grand-child></child>');
});
it('should be able to remove projected placeholders', () => {
@Component({selector: 'grand-child', template: '<div><ng-content></ng-content></div>'})
class GrandChild {
}
@Component(
{selector: 'child', template: '<grand-child><ng-content></ng-content></grand-child>'})
class Child {
}
@Component({selector: 'parent', template: `<child i18n><b>Hello</b> World!</child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child, GrandChild]});
loadTranslations(
{[computeMsgId('{$START_BOLD_TEXT}Hello{$CLOSE_BOLD_TEXT} World!')]: 'Bonjour monde!'});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual('<child><grand-child><div>Bonjour monde!</div></grand-child></child>');
});
it('should project translations with selectors', () => {
@Component({selector: 'child', template: `<ng-content select='span'></ng-content>`})
class Child {
}
@Component({
selector: 'parent',
template: `
<child i18n>
<span title="keepMe"></span>
<span title="deleteMe"></span>
</child>
`
})
class Parent {
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('{$START_TAG_SPAN}{$CLOSE_TAG_SPAN}{$START_TAG_SPAN_1}{$CLOSE_TAG_SPAN}')]:
'{$START_TAG_SPAN}Contenu{$CLOSE_TAG_SPAN}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual('<child><span title="keepMe">Contenu</span></child>');
});
it('should project content in i18n blocks', () => {
@Component({
selector: 'child',
template: `<div i18n>Content projected from <ng-content></ng-content></div>`
})
class Child {
}
@Component({selector: 'parent', template: `<child>{{name}}</child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Content projected from {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}')]:
'Contenu projeté depuis {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<child><div>Contenu projeté depuis Parent</div></child>`);
fixture.componentRef.instance.name = 'Parent component';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<child><div>Contenu projeté depuis Parent component</div></child>`);
});
it('should project content in i18n blocks with placeholders', () => {
@Component({
selector: 'child',
template: `<div i18n>Content projected from <ng-content></ng-content></div>`
})
class Child {
}
@Component({selector: 'parent', template: `<child><b>{{name}}</b></child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Content projected from {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}')]:
'{$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT} a projeté le contenu'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<child><div><b>Parent</b> a projeté le contenu</div></child>`);
});
it('should project translated content in i18n blocks', () => {
@Component(
{selector: 'child', template: `<div i18n>Child content <ng-content></ng-content></div>`})
class Child {
}
@Component({selector: 'parent', template: `<child i18n>and projection from {{name}}</child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Child content {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}')]:
'Contenu enfant {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}',
[computeMsgId('and projection from {$INTERPOLATION}')]:
'et projection depuis {$INTERPOLATION}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(`<child><div>Contenu enfant et projection depuis Parent</div></child>`);
});
it('should project bare ICU expressions', () => {
loadTranslations({
[computeMsgId('{VAR_PLURAL, plural, =1 {one} other {at least {INTERPOLATION} .}}')]:
'{VAR_PLURAL, plural, =1 {one} other {at least {INTERPOLATION} .}}'
});
@Component({selector: 'child', template: '<div><ng-content></ng-content></div>'})
class Child {
}
@Component({
selector: 'parent',
template: `
<child i18n>{
value // i18n(ph = "blah"),
plural,
=1 {one}
other {at least {{value}} .}
}</child>`
})
class Parent {
value = 3;
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toContain('at least');
});
it('should project ICUs in i18n blocks', () => {
@Component(
{selector: 'child', template: `<div i18n>Child content <ng-content></ng-content></div>`})
class Child {
}
@Component({
selector: 'parent',
template:
`<child i18n>and projection from {name, select, angular {Angular} other {{{name}}}}</child>`
})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('{VAR_SELECT, select, angular {Angular} other {{INTERPOLATION}}}')]:
'{VAR_SELECT, select, angular {Angular} other {{INTERPOLATION}}}',
[computeMsgId('Child content {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}')]:
'Contenu enfant {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}',
[computeMsgId('and projection from {$ICU}')]: 'et projection depuis {$ICU}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<child><div>Contenu enfant et projection depuis Parent<!--ICU 15--></div></child>`);
fixture.componentRef.instance.name = 'angular';
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML)
.toEqual(
`<child><div>Contenu enfant et projection depuis Angular<!--ICU 15--></div></child>`);
});
it(`shouldn't project deleted projections in i18n blocks`, () => {
@Component(
{selector: 'child', template: `<div i18n>Child content <ng-content></ng-content></div>`})
class Child {
}
@Component({selector: 'parent', template: `<child i18n>and projection from {{name}}</child>`})
class Parent {
name: string = 'Parent';
}
TestBed.configureTestingModule({declarations: [Parent, Child]});
loadTranslations({
[computeMsgId('Child content {$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT}')]:
'Contenu enfant',
[computeMsgId('and projection from {$INTERPOLATION}')]:
'et projection depuis {$INTERPOLATION}'
});
const fixture = TestBed.createComponent(Parent);
fixture.detectChanges();
expect(fixture.nativeElement.innerHTML).toEqual(`<child><div>Contenu enfant</div></child>`);
});
it('should display/destroy projected i18n content', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, A {A} B {B} other {other}}')]:
'{VAR_SELECT, select, A {A} B {B} other {other}}'
});
@Component({
selector: 'app',
template: `
<ng-container>(<ng-content></ng-content>)</ng-container>
`
})
class MyContentApp {
}
@Component({
selector: 'my-app',
template: `
<app i18n *ngIf="condition">{type, select, A {A} B {B} other {other}}</app>
`
})
class MyApp {
type = 'A';
condition = true;
}
TestBed.configureTestingModule({declarations: [MyApp, MyContentApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toContain('(A)');
// change `condition` to remove <app>
fixture.componentInstance.condition = false;
fixture.detectChanges();
// should not contain 'A'
expect(fixture.nativeElement.textContent).toBe('');
// display <app> again
fixture.componentInstance.type = 'B';
fixture.componentInstance.condition = true;
fixture.detectChanges();
// expect that 'B' is now displayed
expect(fixture.nativeElement.textContent).toContain('(B)');
});
});
describe('queries', () => {
function toHtml(element: Element): string {
return element.innerHTML.replace(/\sng-reflect-\S*="[^"]*"/g, '')
.replace(/<!--bindings=\{(\W.*\W\s*)?\}-->/g, '');
}
it('detached nodes should still be part of query', () => {
@Directive({selector: '[text]', inputs: ['text'], exportAs: 'textDir'})
class TextDirective {
// TODO(issue/24571): remove '!'.
text !: string;
constructor() {}
}
@Component({selector: 'div-query', template: '<ng-container #vc></ng-container>'})
class DivQuery {
// TODO(issue/24571): remove '!'.
@ContentChild(TemplateRef, {static: true}) template !: TemplateRef<any>;
// TODO(issue/24571): remove '!'.
@ViewChild('vc', {read: ViewContainerRef, static: true})
vc !: ViewContainerRef;
// TODO(issue/24571): remove '!'.
@ContentChildren(TextDirective, {descendants: true})
query !: QueryList<TextDirective>;
create() { this.vc.createEmbeddedView(this.template); }
destroy() { this.vc.clear(); }
}
TestBed.configureTestingModule({declarations: [TextDirective, DivQuery]});
loadTranslations({
[computeMsgId(
'{$START_TAG_NG_TEMPLATE}{$START_TAG_DIV_1}' +
'{$START_TAG_DIV}' +
'{$START_TAG_SPAN}Content{$CLOSE_TAG_SPAN}' +
'{$CLOSE_TAG_DIV}' +
'{$CLOSE_TAG_DIV}{$CLOSE_TAG_NG_TEMPLATE}')]:
'{$START_TAG_NG_TEMPLATE}Contenu{$CLOSE_TAG_NG_TEMPLATE}'
});
const fixture = initWithTemplate(AppComp, `
<div-query #q i18n>
<ng-template>
<div>
<div *ngIf="visible">
<span text="1">Content</span>
</div>
</div>
</ng-template>
</div-query>
`);
const q = fixture.debugElement.children[0].references.q;
expect(q.query.length).toEqual(0);
// Create embedded view
q.create();
fixture.detectChanges();
expect(q.query.length).toEqual(1);
expect(toHtml(fixture.nativeElement))
.toEqual(`<div-query>Contenu<!--ng-container--></div-query>`);
// Disable ng-if
fixture.componentInstance.visible = false;
fixture.detectChanges();
expect(q.query.length).toEqual(0);
expect(toHtml(fixture.nativeElement))
.toEqual(`<div-query>Contenu<!--ng-container--></div-query>`);
});
});
describe('invalid translations handling', () => {
it('should throw in case invalid ICU is present in a template', () => {
// Error message is produced by Compiler.
expect(() => initWithTemplate(AppComp, '{count, select, 10 {ten} other {other}'))
.toThrowError(
/Invalid ICU message. Missing '}'. \("{count, select, 10 {ten} other {other}\[ERROR ->\]"\)/);
});
it('should throw in case invalid ICU is present in translation', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} other {other}}')]:
// Missing "}" at the end of translation.
'{VAR_SELECT, select, 10 {dix} other {autre}'
});
// Error message is produced at runtime.
expect(() => initWithTemplate(AppComp, '{count, select, 10 {ten} other {other}}'))
.toThrowError(
/Unable to parse ICU expression in "{<7B>0<EFBFBD>, select, 10 {dix} other {autre}" message./);
});
it('should throw in case unescaped curly braces are present in a template', () => {
// Error message is produced by Compiler.
expect(() => initWithTemplate(AppComp, 'Text { count }'))
.toThrowError(
/Do you have an unescaped "{" in your template\? Use "{{ '{' }}"\) to escape it/);
});
it('should throw in case curly braces are added into translation', () => {
loadTranslations({
// Curly braces which were not present in a template were added into translation.
[computeMsgId('Text')]: 'Text { count }',
});
expect(() => initWithTemplate(AppComp, '<div i18n>Text</div>'))
.toThrowError(/Unable to parse ICU expression in "Text { count }" message./);
});
});
it('should handle extra HTML in translation as plain text', () => {
loadTranslations({
// Translation contains HTML tags that were not present in original message.
[computeMsgId('Text')]: 'Text <div *ngIf="true">Extra content</div>',
});
const fixture = initWithTemplate(AppComp, '<div i18n>Text</div>');
const element = fixture.nativeElement;
expect(element).toHaveText('Text <div *ngIf="true">Extra content</div>');
});
it('should reflect lifecycle hook changes in text interpolations in i18n block', () => {
@Directive({selector: 'input'})
class InputsDir {
constructor(private elementRef: ElementRef) {}
ngOnInit() { this.elementRef.nativeElement.value = 'value set in Directive.ngOnInit'; }
}
@Component({
template: `
<input #myinput>
<div i18n>{{myinput.value}}</div>
`
})
class App {
}
TestBed.configureTestingModule({declarations: [App, InputsDir]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toContain('value set in Directive.ngOnInit');
});
it('should reflect lifecycle hook changes in text interpolations in i18n attributes', () => {
@Directive({selector: 'input'})
class InputsDir {
constructor(private elementRef: ElementRef) {}
ngOnInit() { this.elementRef.nativeElement.value = 'value set in Directive.ngOnInit'; }
}
@Component({
template: `
<input #myinput>
<div i18n-title title="{{myinput.value}}"></div>
`
})
class App {
}
TestBed.configureTestingModule({declarations: [App, InputsDir]});
const fixture = TestBed.createComponent(App);
fixture.detectChanges();
expect(fixture.nativeElement.querySelector('div').title)
.toContain('value set in Directive.ngOnInit');
});
it('should not alloc expando slots when there is no new variable to create', () => {
loadTranslations({
[computeMsgId('{$START_TAG_DIV} Some content {$CLOSE_TAG_DIV}')]:
'{$START_TAG_DIV} Some content {$CLOSE_TAG_DIV}',
[computeMsgId(
'{$START_TAG_SPAN_1}{$ICU}{$CLOSE_TAG_SPAN} - {$START_TAG_SPAN_1}{$ICU_1}{$CLOSE_TAG_SPAN}')]:
'{$START_TAG_SPAN_1}{$ICU}{$CLOSE_TAG_SPAN} - {$START_TAG_SPAN_1}{$ICU_1}{$CLOSE_TAG_SPAN}',
});
@Component({
template: `
<div dialog i18n>
<div *ngIf="data">
Some content
</div>
</div>
<button [close]="true">Button label</button>
`
})
class ContentElementDialog {
data = false;
}
TestBed.configureTestingModule({declarations: [DialogDir, CloseBtn, ContentElementDialog]});
const fixture = TestBed.createComponent(ContentElementDialog);
fixture.detectChanges();
// Remove the reflect attribute, because the attribute order in innerHTML
// isn't guaranteed in different browsers so it could throw off our assertions.
const button = fixture.nativeElement.querySelector('button');
button.removeAttribute('ng-reflect-dialog-result');
expect(fixture.nativeElement.innerHTML).toEqual(`<div dialog=""><!--bindings={
"ng-reflect-ng-if": "false"
}--></div><button title="Close dialog">Button label</button>`);
});
describe('ngTemplateOutlet', () => {
it('should work with i18n content that includes elements', () => {
loadTranslations({
[computeMsgId('{$START_TAG_SPAN}A{$CLOSE_TAG_SPAN} B ')]:
'{$START_TAG_SPAN}a{$CLOSE_TAG_SPAN} b',
});
const fixture = initWithTemplate(AppComp, `
<ng-container *ngTemplateOutlet="tmpl"></ng-container>
<ng-template #tmpl i18n>
<span>A</span> B
</ng-template>
`);
expect(fixture.nativeElement.textContent).toContain('a b');
});
it('should work with i18n content that includes other templates (*ngIf)', () => {
loadTranslations({
[computeMsgId('{$START_TAG_SPAN}A{$CLOSE_TAG_SPAN} B ')]:
'{$START_TAG_SPAN}a{$CLOSE_TAG_SPAN} b',
});
const fixture = initWithTemplate(AppComp, `
<ng-container *ngTemplateOutlet="tmpl"></ng-container>
<ng-template #tmpl i18n>
<span *ngIf="visible">A</span> B
</ng-template>
`);
expect(fixture.nativeElement.textContent).toContain('a b');
});
it('should work with i18n content that includes projection', () => {
loadTranslations({
[computeMsgId('{$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT} B ')]:
'{$START_TAG_NG_CONTENT}{$CLOSE_TAG_NG_CONTENT} b',
});
@Component({
selector: 'projector',
template: `
<ng-container *ngTemplateOutlet="tmpl"></ng-container>
<ng-template #tmpl i18n>
<ng-content></ng-content> B
</ng-template>
`
})
class Projector {
}
@Component({
selector: 'app',
template: `
<projector>a</projector>
`
})
class AppComponent {
}
TestBed.configureTestingModule({declarations: [AppComponent, Projector]});
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
expect(fixture.nativeElement.textContent).toContain('a b');
});
});
});
function initWithTemplate(compType: Type<any>, template: string) {
TestBed.overrideComponent(compType, {set: {template}});
const fixture = TestBed.createComponent(compType);
fixture.detectChanges();
return fixture;
}
@Component({selector: 'app-comp', template: ``})
class AppComp {
name = `Angular`;
visible = true;
count = 0;
}
@Component({
selector: 'app-comp-with-whitespaces',
template: ``,
preserveWhitespaces: true,
})
class AppCompWithWhitespaces {
}
@Directive({
selector: '[tplRef]',
})
class DirectiveWithTplRef {
constructor(public vcRef: ViewContainerRef, public tplRef: TemplateRef<{}>) {}
ngOnInit() { this.vcRef.createEmbeddedView(this.tplRef, {}); }
}
@Pipe({name: 'uppercase'})
class UppercasePipe implements PipeTransform {
transform(value: string) { return value.toUpperCase(); }
}
@Directive({selector: `[dialog]`})
export class DialogDir {
}
@Directive({selector: `button[close]`, host: {'[title]': 'name'}})
export class CloseBtn {
@Input('close') dialogResult: any;
name: string = 'Close dialog';
}