angular-docs-cn/modules/angular2/test/i18n/i18n_html_parser_spec.ts

210 lines
8.2 KiB
TypeScript

import {
AsyncTestCompleter,
beforeEach,
ddescribe,
describe,
expect,
iit,
inject,
it,
xdescribe,
xit
} from 'angular2/testing_internal';
import {I18nHtmlParser} from 'angular2/src/i18n/i18n_html_parser';
import {Message, id} from 'angular2/src/i18n/message';
import {Parser} from 'angular2/src/core/change_detection/parser/parser';
import {Lexer} from 'angular2/src/core/change_detection/parser/lexer';
import {StringMapWrapper} from 'angular2/src/facade/collection';
import {HtmlParser, HtmlParseTreeResult} from 'angular2/src/compiler/html_parser';
import {
HtmlAst,
HtmlAstVisitor,
HtmlElementAst,
HtmlAttrAst,
HtmlTextAst,
HtmlCommentAst,
htmlVisitAll
} from 'angular2/src/compiler/html_ast';
import {serializeXmb, deserializeXmb} from 'angular2/src/i18n/xmb_serializer';
import {ParseError, ParseLocation} from 'angular2/src/compiler/parse_util';
import {humanizeDom} from '../../test/compiler/html_ast_spec_utils';
export function main() {
describe('I18nHtmlParser', () => {
function parse(template: string, messages: {[key: string]: string}): HtmlParseTreeResult {
var parser = new Parser(new Lexer());
let htmlParser = new HtmlParser();
let msgs = '';
StringMapWrapper.forEach(messages, (v, k) => msgs += `<msg id="${k}">${v}</msg>`);
let res = deserializeXmb(`<message-bundle>${msgs}</message-bundle>`, 'someUrl');
return new I18nHtmlParser(htmlParser, parser, res.content, res.messages)
.parse(template, "someurl");
}
it("should delegate to the provided parser when no i18n", () => {
expect(humanizeDom(parse('<div>a</div>', {})))
.toEqual([[HtmlElementAst, 'div', 0], [HtmlTextAst, 'a', 1]]);
});
it("should replace attributes", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message("some message", "meaning", null))] = "another message";
expect(humanizeDom(parse("<div value='some message' i18n-value='meaning|comment'></div>",
translations)))
.toEqual([[HtmlElementAst, 'div', 0], [HtmlAttrAst, 'value', 'another message']]);
});
it("should replace elements with the i18n attr", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message("message", "meaning", null))] = "another message";
expect(humanizeDom(parse("<div i18n='meaning|desc'>message</div>", translations)))
.toEqual([[HtmlElementAst, 'div', 0], [HtmlTextAst, 'another message', 1]]);
});
it("should handle interpolation", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('<ph name="0"/> and <ph name="1"/>', null, null))] =
'<ph name="1"/> or <ph name="0"/>';
expect(humanizeDom(parse("<div value='{{a}} and {{b}}' i18n-value></div>", translations)))
.toEqual([[HtmlElementAst, 'div', 0], [HtmlAttrAst, 'value', '{{b}} or {{a}}']]);
});
it("should handle nested html", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('<ph name="e0">a</ph><ph name="e2">b</ph>', null, null))] =
'<ph name="e2">B</ph><ph name="e0">A</ph>';
expect(humanizeDom(parse('<div i18n><a>a</a><b>b</b></div>', translations)))
.toEqual([
[HtmlElementAst, 'div', 0],
[HtmlElementAst, 'b', 1],
[HtmlTextAst, 'B', 2],
[HtmlElementAst, 'a', 1],
[HtmlTextAst, 'A', 2],
]);
});
it("should support interpolation", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message(
'<ph name="e0">a</ph><ph name="e2"><ph name="t3">b<ph name="0"/></ph></ph>', null,
null))] = '<ph name="e2"><ph name="t3"><ph name="0"/>B</ph></ph><ph name="e0">A</ph>';
expect(humanizeDom(parse('<div i18n><a>a</a><b>b{{i}}</b></div>', translations)))
.toEqual([
[HtmlElementAst, 'div', 0],
[HtmlElementAst, 'b', 1],
[HtmlTextAst, '{{i}}B', 2],
[HtmlElementAst, 'a', 1],
[HtmlTextAst, 'A', 2],
]);
});
it("should i18n attributes of placeholder elements", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('<ph name="e0">a</ph>', null, null))] = '<ph name="e0">A</ph>';
translations[id(new Message('b', null, null))] = 'B';
expect(humanizeDom(parse('<div i18n><a value="b" i18n-value>a</a></div>', translations)))
.toEqual([
[HtmlElementAst, 'div', 0],
[HtmlElementAst, 'a', 1],
[HtmlAttrAst, 'value', "B"],
[HtmlTextAst, 'A', 2],
]);
});
it("should preserve non-i18n attributes", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('message', null, null))] = 'another message';
expect(humanizeDom(parse('<div i18n value="b">message</div>', translations)))
.toEqual([
[HtmlElementAst, 'div', 0],
[HtmlAttrAst, 'value', "b"],
[HtmlTextAst, 'another message', 1]
]);
});
it('should extract from partitions', () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('message1', 'meaning1', null))] = 'another message1';
translations[id(new Message('message2', 'meaning2', null))] = 'another message2';
let res = parse(`<!-- i18n: meaning1|desc1 -->message1<!-- /i18n --><!-- i18n: meaning2|desc2 -->message2<!-- /i18n -->`, translations);
expect(humanizeDom(res))
.toEqual([
[HtmlTextAst, 'another message1', 0],
[HtmlTextAst, 'another message2', 0],
]);
});
it("should preserve original positions", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('<ph name="e0">a</ph><ph name="e2">b</ph>', null, null))] =
'<ph name="e2">B</ph><ph name="e0">A</ph>';
let res =
(<any>parse('<div i18n><a>a</a><b>b</b></div>', translations).rootNodes[0]).children;
expect(res[0].sourceSpan.start.offset).toEqual(18);
expect(res[1].sourceSpan.start.offset).toEqual(10);
});
describe("errors", () => {
it("should error when giving an invalid template", () => {
expect(humanizeErrors(parse("<a>a</b>", {}).errors))
.toEqual(['Unexpected closing tag "b"']);
});
it("should error when no matching message (attr)", () => {
let mid = id(new Message("some message", null, null));
expect(humanizeErrors(parse("<div value='some message' i18n-value></div>", {}).errors))
.toEqual([`Cannot find message for id '${mid}'`]);
});
it("should error when no matching message (text)", () => {
let mid = id(new Message("some message", null, null));
expect(humanizeErrors(parse("<div i18n>some message</div>", {}).errors))
.toEqual([`Cannot find message for id '${mid}'`]);
});
it("should error when a non-placeholder element appears in translation", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message("some message", null, null))] = "<a>a</a>";
expect(humanizeErrors(parse("<div i18n>some message</div>", translations).errors))
.toEqual([`Unexpected tag "a". Only "ph" tags are allowed.`]);
});
it("should error when a placeholder element does not have the name attribute", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message("some message", null, null))] = "<ph>a</ph>";
expect(humanizeErrors(parse("<div i18n>some message</div>", translations).errors))
.toEqual([`Missing "name" attribute.`]);
});
it("should error when the translation refers to an invalid expression", () => {
let translations: {[key: string]: string} = {};
translations[id(new Message('hi <ph name="0"/>', null, null))] = 'hi <ph name="99"/>';
expect(
humanizeErrors(parse("<div value='hi {{a}}' i18n-value></div>", translations).errors))
.toEqual(["Invalid interpolation index '99'"]);
});
});
});
}
function humanizeErrors(errors: ParseError[]): string[] {
return errors.map(error => error.msg);
}