describe('Transformer', () => {
  describe('Block Indices', () => {
    it('should not transform the first Operation which index is less than index of the second Operation', () => {
      console.log('todo');
    });

    it('should transform the first Operation which index is more than index of the second Operation', () => {
      console.log('todo');
    });
  });

  describe('Symbol Indices', () => {
    it('should not transform the first Operation which index is less than index of the second Operation', () => {
      console.log('todo');
    });

    it('should transform the first Operation which index is more than index of the second Operation', () => {
      console.log('todo');
    });
  });

  describe('Mixed Indices', () => {
    it('should not transform the first Operation which block index is less than block index of the second Operation', () => {
      console.log('todo');
    });

    it('should transform the first Operation which block index is more than block index of the second Operation', () => {
      console.log('todo');
    });
  });

  describe('Inverting Operation', () => {
    it('should invert INSERT Operation to DELETE Operation', () => {
      console.log('todo');
    });

    it('should invert DELETE Operation to INSERT Operation', () => {
      console.log('todo');
    });
  });
});