make proper POST request (see #11)

lib/forwarder.rb

@@ -103,7 +103,8 @@ def request(env)
       req = Net::HTTP.const_get(m.capitalize).new(path, headers(env))
     when 'PUT', 'POST'
       req = Net::HTTP.const_get(m.capitalize).new(path, headers(env))
-      req.body = rackreq.body.to_s
+      rackreq.body.rewind
+      req.body = rackreq.body.read
     else
       raise "method not supported: #{method}"
     end

spec/features/pizzade_login.rb

@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe 'Pizza.de Login', type: :feature do
+  before do
+    visit root_path
+    click_on I18n.t('main.chooser.new_basket.link')
+  end
+
+  it 'reports login failure properly' do
+    visit root_path + 'profil/login'
+
+    within 'form[name=login]' do
+      fill_in 'user_name', with: 'test'
+      fill_in 'password', with: 'test'
+      click_on 'einloggen'
+    end
+
+    expect(page).to have_selector 'td.error'
+  end
+end