angular-docs-cn/modules/angular2/test/render/dom/events/key_events_spec.ts

import {
  describe,
  ddescribe,
  it,
  iit,
  xit,
  xdescribe,
  expect,
  beforeEach,
  el
} from 'angular2/test_lib';
import {KeyEventsPlugin} from 'angular2/src/render/dom/events/key_events';

export function main() {
  describe('KeyEvents', () => {

    it('should ignore unrecognized events', () => {
      expect(KeyEventsPlugin.parseEventName('keydown')).toEqual(null);
      expect(KeyEventsPlugin.parseEventName('keyup')).toEqual(null);
      expect(KeyEventsPlugin.parseEventName('keydown.unknownmodifier.enter')).toEqual(null);
      expect(KeyEventsPlugin.parseEventName('keyup.unknownmodifier.enter')).toEqual(null);
      expect(KeyEventsPlugin.parseEventName('unknownevent.control.shift.enter')).toEqual(null);
      expect(KeyEventsPlugin.parseEventName('unknownevent.enter')).toEqual(null);
    });

    it('should correctly parse event names', () => {
      // key with no modifier
      expect(KeyEventsPlugin.parseEventName('keydown.enter'))
          .toEqual({'domEventName': 'keydown', 'fullKey': 'enter'});
      expect(KeyEventsPlugin.parseEventName('keyup.enter'))
          .toEqual({'domEventName': 'keyup', 'fullKey': 'enter'});

      // key with modifiers:
      expect(KeyEventsPlugin.parseEventName('keydown.control.shift.enter'))
          .toEqual({'domEventName': 'keydown', 'fullKey': 'control.shift.enter'});
      expect(KeyEventsPlugin.parseEventName('keyup.control.shift.enter'))
          .toEqual({'domEventName': 'keyup', 'fullKey': 'control.shift.enter'});

      // key with modifiers in a different order:
      expect(KeyEventsPlugin.parseEventName('keydown.shift.control.enter'))
          .toEqual({'domEventName': 'keydown', 'fullKey': 'control.shift.enter'});
      expect(KeyEventsPlugin.parseEventName('keyup.shift.control.enter'))
          .toEqual({'domEventName': 'keyup', 'fullKey': 'control.shift.enter'});

      // key that is also a modifier:
      expect(KeyEventsPlugin.parseEventName('keydown.shift.control'))
          .toEqual({'domEventName': 'keydown', 'fullKey': 'shift.control'});
      expect(KeyEventsPlugin.parseEventName('keyup.shift.control'))
          .toEqual({'domEventName': 'keyup', 'fullKey': 'shift.control'});

      expect(KeyEventsPlugin.parseEventName('keydown.control.shift'))
          .toEqual({'domEventName': 'keydown', 'fullKey': 'control.shift'});
      expect(KeyEventsPlugin.parseEventName('keyup.control.shift'))
          .toEqual({'domEventName': 'keyup', 'fullKey': 'control.shift'});

    });

    it('should alias esc to escape', () => {
      expect(KeyEventsPlugin.parseEventName('keyup.control.esc'))
          .toEqual(KeyEventsPlugin.parseEventName('keyup.control.escape'));
    });

  });
}