Write simple rspec tests on one line for fun and profit

If you have a test set up that performs one assertion then you can condense your test into one line, this makes things way more readable and shortens your tests.

For example:

it "should return a response header with JSON in it" do
  response.header['Content-Type'].should include 'json'
end

Can become:

it { response.header['Content-Type'].should include 'json' }

When you have lots of small tests like this it really helps to make your tests easier to read, which will in turn help you in keeping them up-to-date and sharing them with other people.