angular-docs-cn/modules/@angular/compiler/test/i18n/xmb_serializer_spec.ts

import {
  beforeEach,
  ddescribe,
  describe,
  expect,
  iit,
  inject,
  it,
  xdescribe,
  xit
} from '@angular/core/testing/testing_internal';

import {HtmlAst} from '@angular/compiler/src/html_ast';
import {Message, id} from '@angular/compiler/src/i18n/message';
import {serializeXmb, deserializeXmb} from '@angular/compiler/src/i18n/xmb_serializer';
import {ParseSourceSpan, ParseError} from '@angular/compiler/src/parse_util';

export function main() {
  describe("Xmb", () => {
    describe('Xmb Serialization', () => {
      it("should return an empty message bundle for an empty list of messages",
         () => { expect(serializeXmb([])).toEqual("<message-bundle></message-bundle>"); });

      it("should serializeXmb messages without desc", () => {
        let m = new Message("content", "meaning", null);
        let expected = `<message-bundle><msg id='${id(m)}'>content</msg></message-bundle>`;
        expect(serializeXmb([m])).toEqual(expected);
      });

      it("should serializeXmb messages with desc", () => {
        let m = new Message("content", "meaning", "description");
        let expected =
            `<message-bundle><msg id='${id(m)}' desc='description'>content</msg></message-bundle>`;
        expect(serializeXmb([m])).toEqual(expected);
      });
    });

    describe("Xmb Deserialization", () => {
      it("should parse an empty bundle", () => {
        let mb = "<message-bundle></message-bundle>";
        expect(deserializeXmb(mb, "url").messages).toEqual({});
      });

      it("should parse an non-empty bundle", () => {
        let mb = `
          <message-bundle>
            <msg id="id1" desc="description1">content1</msg>
            <msg id="id2">content2</msg>
          </message-bundle>
        `;

        let parsed = deserializeXmb(mb, "url").messages;
        expect(_serialize(parsed["id1"])).toEqual("content1");
        expect(_serialize(parsed["id2"])).toEqual("content2");
      });

      it("should error when cannot parse the content", () => {
        let mb = `
          <message-bundle>
            <msg id="id1" desc="description1">content
          </message-bundle>
        `;

        let res = deserializeXmb(mb, "url");
        expect(_serializeErrors(res.errors)).toEqual(['Unexpected closing tag "message-bundle"']);
      });

      it("should error when cannot find the id attribute", () => {
        let mb = `
          <message-bundle>
            <msg>content</msg>
          </message-bundle>
        `;

        let res = deserializeXmb(mb, "url");
        expect(_serializeErrors(res.errors)).toEqual(['"id" attribute is missing']);
      });

      it("should error on empty content", () => {
        let mb = ``;
        let res = deserializeXmb(mb, "url");
        expect(_serializeErrors(res.errors)).toEqual(['Missing element "message-bundle"']);
      });

      it("should error on an invalid element", () => {
        let mb = `
          <message-bundle>
            <invalid>content</invalid>
          </message-bundle>
        `;

        let res = deserializeXmb(mb, "url");
        expect(_serializeErrors(res.errors)).toEqual(['Unexpected element "invalid"']);
      });

      it("should expand 'ph' elements", () => {
        let mb = `
          <message-bundle>
            <msg id="id1">a<ph name="i0"/></msg>
          </message-bundle>
        `;

        let res = deserializeXmb(mb, "url").messages["id1"];
        expect((<any>res[1]).name).toEqual("ph");
      });
    });
  });
}

function _serialize(nodes: HtmlAst[]): string {
  return (<any>nodes[0]).value;
}

function _serializeErrors(errors: ParseError[]): string[] {
  return errors.map(e => e.msg);
}