Using implicit `subject` with `expect` in RSpec-2.11

If you configure RSpec to disable the should syntax, you can still use the old one-liner syntax, since that doesn't involve should being added to every object:

describe User do  it { should be_valid }end

We briefly discussed an alternate one-liner syntax, but decided against it since it wasn't needed and we felt like it might add confusion. You can, however, easily add this yourself if you prefer how it reads:

RSpec.configure do |c|  c.alias_example_to :expect_itendRSpec::Core::MemoizedHelpers.module_eval do  alias to should  alias to_not should_notend

With this in place, you could write this as:

describe User do  expect_it { to be_valid }end

With Rspec 3.0 you can use is_expected as described here.

describe Array do  describe "when first created" do    # Rather than:    # it "should be empty" do    #   subject.should be_empty    # end    it { should be_empty }    # or    it { is_expected.to be_empty }  endend

One could use the new named subject syntax, although it's not implicit.

describe User do  subject(:author) { User.new }  it 'is valid' do    expect(author).to be_valid  endend