Multiple assertions with rspec change

foo.rb

class Foo
  attr_reader :bar, :buzz

  def initialize
    @bar = 1
    @buzz = 1
  end

  def add
    @bar += 1
    @buzz += 9
  end
end

foo_spec.rb

require './foo.rb'

describe Foo do
  context 'using lambda' do
    before do
      @foo = Foo.new
      @foo_add = -> { @foo.add }
    end

    it { expect { @foo_add.call }.to change(@foo, :bar).from(1).to(2) }
    it { expect { @foo_add.call }.to change(@foo, :buzz).by(9) }
  end

  context 'without lambda' do
    before do
      @foo = Foo.new
    end

    it 'should change foo by 1 and buzz by 9' do
      expect { @foo.add }.to change(@foo, :bar).from(1).to(2) &&
        change(@foo, :buzz).by(9)
    end
  end
end