request_user_spec.rb

RSpec.describe User do
  describe 'POST /api/users' do
    let(:access_token) { FactoryGirl.create(:access_token) }
    let(:headers) do
      {
        'Authorization' => "#{access_token.token_type} #{access_token.token}"
      }
    end
    let(:params) do
      {
        'user[name]' => Faker::Name.name,
        'user[screen_name]' => Faker::Internet.user_name(nil, %w(_)).first(15),
        'user[password]' => "password",
        'user[password_confirmation]' => "password",
      }
    end

    context 'with correct parameter' do
      it do
        is_expected.to eq 201
        expect(response.body).to match_schema :user
      end
    end

    context 'with blank name' do
      before { params['user[name]'] = '' }
      it do
        is_expected.to eq 422

        json = JSON.parse(response.body)
        expect(json).to have_key 'name'
      end
    end

    describe 'user[screen_name]' do
      context 'with blank' do
        before { params['user[screen_name]'] = '' }
        it do
          is_expected.to eq 422

          json = JSON.parse(response.body)
          expect(json).to have_key 'screen_name'
        end
      end

      context 'with 15 characters' do
        before { params['user[screen_name]'] = 'a' * 15 }
        it do
          is_expected.to eq 201
          expect(response.body).to match_schema :user
        end
      end

      context 'with 16 characters' do
        before { params['user[screen_name]'] = 'a' * 16 }
        it do
          is_expected.to eq 422

          json = JSON.parse(response.body)
          expect(json).to have_key 'screen_name'
        end
      end
    end

    context 'with blank password' do
      before do
        params['user[password]'] = ''
        params['user[password_confirmation]'] = ''
      end
      it do
        is_expected.to eq 422

        json = JSON.parse(response.body)
        expect(json).to have_key 'password'
        expect(json).to have_key 'password_confirmation'
      end
    end

    context 'with wrong password_confirmation' do
      before { params['user[password]'] = 'wrong password' }
      it do
        is_expected.to eq 422

        json = JSON.parse(response.body)
        expect(json).to have_key 'password_confirmation'
      end
    end
  end
end