/**
 * @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 {DynamicContentProjectionHelper} from '@angular/upgrade/src/dynamic/content_projection_helper';
import {nodes} from './test_helpers';


export function main() {
  describe('groupNodesBySelector', () => {
    let groupNodesBySelector: (ngContentSelectors: string[], nodes: Node[]) => Node[][];

    beforeEach(() => {
      const projectionHelper = new DynamicContentProjectionHelper();
      groupNodesBySelector = projectionHelper.groupNodesBySelector.bind(projectionHelper);
    });


    it('should return an array of node collections for each selector', () => {
      const contentNodes = nodes(
          '<div class="x"><span>div-1 content</span></div>' +
          '<input type="number" name="myNum">' +
          '<input type="date" name="myDate">' +
          '<span>span content</span>' +
          '<div class="x"><span>div-2 content</span></div>');

      const selectors = ['input[type=date]', 'span', '.x'];
      const projectableNodes = groupNodesBySelector(selectors, contentNodes);

      expect(projectableNodes[0]).toEqual(nodes('<input type="date" name="myDate">'));
      expect(projectableNodes[1]).toEqual(nodes('<span>span content</span>'));
      expect(projectableNodes[2])
          .toEqual(nodes(
              '<div class="x"><span>div-1 content</span></div>' +
              '<div class="x"><span>div-2 content</span></div>'));
    });

    it('should collect up unmatched nodes for the wildcard selector', () => {
      const contentNodes = nodes(
          '<div class="x"><span>div-1 content</span></div>' +
          '<input type="number" name="myNum">' +
          '<input type="date" name="myDate">' +
          '<span>span content</span>' +
          '<div class="x"><span>div-2 content</span></div>');

      const selectors = ['.x', '*', 'input[type=date]'];
      const projectableNodes = groupNodesBySelector(selectors, contentNodes);

      expect(projectableNodes[0])
          .toEqual(nodes(
              '<div class="x"><span>div-1 content</span></div>' +
              '<div class="x"><span>div-2 content</span></div>'));
      expect(projectableNodes[1])
          .toEqual(nodes(
              '<input type="number" name="myNum">' +
              '<span>span content</span>'));
      expect(projectableNodes[2]).toEqual(nodes('<input type="date" name="myDate">'));
    });

    it('should return an array of empty arrays if there are no nodes passed in', () => {
      const selectors = ['.x', '*', 'input[type=date]'];
      const projectableNodes = groupNodesBySelector(selectors, []);
      expect(projectableNodes).toEqual([[], [], []]);
    });

    it('should return an empty array for each selector that does not match', () => {
      const contentNodes = nodes(
          '<div class="x"><span>div-1 content</span></div>' +
          '<input type="number" name="myNum">' +
          '<input type="date" name="myDate">' +
          '<span>span content</span>' +
          '<div class="x"><span>div-2 content</span></div>');

      const noSelectorNodes = groupNodesBySelector([], contentNodes);
      expect(noSelectorNodes).toEqual([]);

      const noMatchSelectorNodes = groupNodesBySelector(['.not-there'], contentNodes);
      expect(noMatchSelectorNodes).toEqual([[]]);
    });
  });
}