RSpec.describe HTTP::Options, 'json' do
  let(:opts) { HTTP::Options.new }

  it 'defaults to nil' do
    expect(opts.json).to be nil
  end

  it 'may be specified with with_json data' do
    opts2 = opts.with_json(:foo => 42)
    expect(opts.json).to be nil
    expect(opts2.json).to eq(:foo => 42)
  end
end
