angular-docs-cn/modules/@angular/compiler/test/i18n/translation_bundle_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
*/
import * as i18n from '../../src/i18n/i18n_ast';
import {TranslationBundle} from '../../src/i18n/translation_bundle';
import {ParseLocation, ParseSourceFile, ParseSourceSpan} from '../../src/parse_util';
import {serializeNodes} from '../ml_parser/ast_serializer_spec';
export function main(): void {
describe('TranslationBundle', () => {
const file = new ParseSourceFile('content', 'url');
const location = new ParseLocation(file, 0, 0, 0);
const span = new ParseSourceSpan(location, null);
const srcNode = new i18n.Text('src', span);
it('should translate a plain message', () => {
const msgMap = {foo: [new i18n.Text('bar', null)]};
const tb = new TranslationBundle(msgMap, (_) => 'foo');
const msg = new i18n.Message([srcNode], {}, {}, 'm', 'd', 'i');
expect(serializeNodes(tb.get(msg))).toEqual(['bar']);
});
it('should translate a message with placeholder', () => {
const msgMap = {
foo: [
new i18n.Text('bar', null),
new i18n.Placeholder('', 'ph1', null),
]
};
const phMap = {
ph1: '*phContent*',
};
const tb = new TranslationBundle(msgMap, (_) => 'foo');
const msg = new i18n.Message([srcNode], phMap, {}, 'm', 'd', 'i');
expect(serializeNodes(tb.get(msg))).toEqual(['bar*phContent*']);
});
it('should translate a message with placeholder referencing messages', () => {
const msgMap = {
foo: [
new i18n.Text('--', null),
new i18n.Placeholder('', 'ph1', null),
new i18n.Text('++', null),
],
ref: [
new i18n.Text('*refMsg*', null),
],
};
const refMsg = new i18n.Message([srcNode], {}, {}, 'm', 'd', 'i');
const msg = new i18n.Message([srcNode], {}, {ph1: refMsg}, 'm', 'd', 'i');
let count = 0;
const digest = (_: any) => count++ ? 'ref' : 'foo';
const tb = new TranslationBundle(msgMap, digest);
expect(serializeNodes(tb.get(msg))).toEqual(['--*refMsg*++']);
});
describe('errors', () => {
it('should report unknown placeholders', () => {
const msgMap = {
foo: [
new i18n.Text('bar', null),
new i18n.Placeholder('', 'ph1', span),
]
};
const tb = new TranslationBundle(msgMap, (_) => 'foo');
const msg = new i18n.Message([srcNode], {}, {}, 'm', 'd', 'i');
expect(() => tb.get(msg)).toThrowError(/Unknown placeholder/);
});
it('should report missing translation', () => {
const tb = new TranslationBundle({}, (_) => 'foo');
const msg = new i18n.Message([srcNode], {}, {}, 'm', 'd', 'i');
expect(() => tb.get(msg)).toThrowError(/Missing translation for message foo/);
});
it('should report missing referenced message', () => {
const msgMap = {
foo: [new i18n.Placeholder('', 'ph1', span)],
};
const refMsg = new i18n.Message([srcNode], {}, {}, 'm', 'd', 'i');
const msg = new i18n.Message([srcNode], {}, {ph1: refMsg}, 'm', 'd', 'i');
let count = 0;
const digest = (_: any) => count++ ? 'ref' : 'foo';
const tb = new TranslationBundle(msgMap, digest);
expect(() => tb.get(msg)).toThrowError(/Missing translation for message ref/);
});
it('should report invalid translated html', () => {
const msgMap = {
foo: [
new i18n.Text('text', null),
new i18n.Placeholder('', 'ph1', null),
]
};
const phMap = {
ph1: '</b>',
};
const tb = new TranslationBundle(msgMap, (_) => 'foo');
const msg = new i18n.Message([srcNode], phMap, {}, 'm', 'd', 'i');
expect(() => tb.get(msg)).toThrowError(/Unexpected closing tag "b"/);
});
});
});
}