angular-cn/aio/tools/transforms/angular-base-package/post-processors/h1-checker.spec.js

var testPackage = require('../../helpers/test-package');
var Dgeni = require('dgeni');
const plugin = require('./h1-checker');

describe('h1Checker postprocessor', () => {
  let processor, createDocMessage;

  beforeEach(() => {
    const dgeni = new Dgeni([testPackage('angular-base-package')]);
    const injector = dgeni.configureInjector();
    createDocMessage = injector.get('createDocMessage');
    processor = injector.get('postProcessHtml');
    processor.docTypes = ['a'];
    processor.plugins = [plugin];
  });

  it('should complain if there is more than one h1 in a document', () => {
    const doc = {
      docType: 'a',
      renderedContent: `
        <h1>Heading 1</h2>
        <h2>Heading 2</h2>
        <h1>Heading 1a</h1>
    `
    };
    expect(() => processor.$process([doc])).toThrowError(createDocMessage('More than one h1 found [<h1>Heading 1, <h1>Heading 1a</h1>]', doc));
  });

  it('should not complain if there is exactly one h1 in a document', () => {
    const doc = {
      docType: 'a',
      renderedContent: `
        <h1>Heading 1</h2>
        <h2>Heading 2</h2>
    `
    };
    expect(() => processor.$process([doc])).not.toThrow();
  });

  it('should not complain if there are no h1s in a document', () => {
    const doc = {
      docType: 'a',
      renderedContent: `
        <h2>Heading 2</h2>
    `
    };
    expect(() => processor.$process([doc])).not.toThrow();
  });
});