Rspec expect assigns shorthand

Question

I currently have something like:

it 'assigns @competition' do
  expect(assigns(:competition)).to be_a_new(Competition)
end

Is there a shorter version of this using the it { should ... } type syntax?

Answer 1

I don't know that it's shorter, but you can use:

subject {assigns(:competition)}
it {should be_a_new(Competition)}

or you can use:

it {expect(assigns(:competition)).to be_a_new(Competition)}

In both cases, the shortening is coming from the elimination of the string argument to it , which is independent of the use of should .

Answer 2

By now the RSpec documentation suggests to use is_expected.to , as in:

describe [1, 2, 3] do
  it { is_expected.to be_an Array }
  it { is_expected.not_to include 4 }
end