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i18n_spec.ts
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i18n_spec.ts
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/**
* @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 `$localize()` global function available to the compiled templates, and the direct calls
// below. This would normally be done inside the application `polyfills.ts` file.
import '@angular/localize/init';
import {registerLocaleData} from '@angular/common';
import localeRo from '@angular/common/locales/ro';
import {Component, ContentChild, ContentChildren, Directive, HostBinding, Input, LOCALE_ID, QueryList, TemplateRef, Type, ViewChild, ViewContainerRef, Pipe, PipeTransform, NO_ERRORS_SCHEMA} from '@angular/core';
import {setDelayProjection} from '@angular/core/src/render3/instructions/projection';
import {TestBed} from '@angular/core/testing';
import {loadTranslations, clearTranslations} from '@angular/localize';
import {By} from '@angular/platform-browser';
import {expect} from '@angular/platform-browser/testing/src/matchers';
import {onlyInIvy} from '@angular/private/testing';
import {computeMsgId} from '@angular/compiler';
onlyInIvy('Ivy i18n logic').describe('runtime i18n', () => {
beforeEach(() => {
TestBed.configureTestingModule({
declarations: [AppComp, DirectiveWithTplRef, UppercasePipe],
// In some of the tests we use made-up tag names for better readability, however they'll
// cause validation errors. Add the `NO_ERRORS_SCHEMA` so that we don't have to declare
// dummy components for each one of them.
schemas: [NO_ERRORS_SCHEMA],
});
});
afterEach(() => {
setDelayProjection(false);
clearTranslations();
});
it('should translate text', () => {
loadTranslations({[computeMsgId('text')]: 'texte'});
const fixture = initWithTemplate(AppComp, `<div i18n>text</div>`);
expect(fixture.nativeElement.innerHTML).toEqual(`<div>texte</div>`);
});
it('should support interpolations', () => {
loadTranslations({[computeMsgId('Hello {$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_CONTAINER} Une {$CLOSE_TAG_NG_CONTAINER}' +
'{$START_TAG_DIV} Deux {$CLOSE_TAG_DIV}' +
'{$START_TAG_SPAN} Trois {$CLOSE_TAG_SPAN}'
});
const fixture = initWithTemplate(AppComp, `
<div i18n>
<ng-container #localRefA> One </ng-container>
<div #localRefB> Two </div>
<span #localRefC> Three </span>
</div>
`);
expect(fixture.nativeElement.textContent).toBe(' Une Deux Trois ');
});
it('should handle local refs correctly in case an element is removed in translation', () => {
loadTranslations({
[computeMsgId(
'{$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{$CLOSE_LINK}'
});
@Directive({selector: '[myDir]'})
class Dir {
condition = true;
}
@Component({
selector: 'my-cmp',
template: `
<div *ngIf="isLogged; else notLoggedIn">
<span>Logged in</span>
</div>
<ng-template #notLoggedIn i18n>
<a myDir>Not logged in</a>
</ng-template>
`,
})
class Cmp {
isLogged = false;
}
TestBed.configureTestingModule({
declarations: [Cmp, Dir],
});
const fixture = TestBed.createComponent(Cmp);
fixture.detectChanges();
const a = fixture.debugElement.query(By.css('a'));
const dir = a.injector.get(Dir);
expect(dir.condition).toEqual(true);
});
});
describe('should support ICU expressions', () => {
it('with no root node', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {dix} 20 {vingt} other {autre}}'
});
const fixture =
initWithTemplate(AppComp, `{count, select, 10 {ten} 20 {twenty} other {other}}`);
const element = fixture.nativeElement;
expect(element).toHaveText('autre');
});
it('with no i18n tag', () => {
loadTranslations({
[computeMsgId('{VAR_SELECT, select, 10 {ten} 20 {twenty} other {other}}')]:
'{VAR_SELECT, select, 10 {dix} 20 {vingt} other {autre}}'
});
const fixture = initWithTemplate(
AppComp, `<div>{count, select, 10 {ten} 20 {twenty} other {other}}</div>`);
const element = fixture.nativeElement;
expect(element).toHaveText('autre');
});
it('multiple', () => {
loadTranslations({
[computeMsgId(
'{VAR_PLURAL, plural, =0 {no {START_BOLD_TEXT}emails{CLOSE_BOLD_TEXT}!} =1 {one {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
'')]:
'{VAR_PLURAL, plural, =0 {aucun {START_BOLD_TEXT}email{CLOSE_BOLD_TEXT}!} =1 {un {START_ITALIC_TEXT}email{CLOSE_ITALIC_TEXT}} other {{INTERPOLATION} {START_TAG_SPAN}emails{CLOSE_TAG_SPAN}}}',
[computeMsgId('{VAR_SELECT, select, other {({INTERPOLATION})}}')]:
'{VAR_SELECT, select, other {({INTERPOLATION})}}',
[computeMsgId('{$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({