add first integration test

spec/integration/session_spec.rb

@@ -0,0 +1,21 @@
+require 'spec_helper'
+
+describe 'the session', :type => :feature do
+  let(:user) { FactoryGirl.create :user }
+
+  describe 'login page', :type => :feature do
+    it 'is accesible' do
+      get login_path
+      expect(response).to be_success
+    end
+    it 'logs me in' do
+      login user.nick, user.password
+      expect(page).to_not have_selector('.alert-error')
+    end
+    it 'does not log me in with wrong password' do
+      login user.nick, 'XX'+user.password 
+      expect(page).to have_selector('.alert-error')
+    end
+  end
+
+end