Add session tests

test/app_sessions.rb

@@ -0,0 +1,46 @@
+require File.dirname(__FILE__) + '/test_helper'
+require 'camping'
+require 'camping/session'
+
+Camping.goes :Sessions
+
+module Sessions
+  include Camping::Session
+end
+
+module Sessions::Controllers
+  class One
+    def get
+      @state.clear
+      @state.one = 42
+      redirect R(Two)
+    end
+  end
+
+  class Two
+    def get
+      @state.two = 56
+      redirect R(Three)
+    end
+  end
+
+  class Three
+    def get
+      @state.three = 99
+      @state.values_at("one", "two", "three").inspect
+    end
+  end
+end
+
+class Sessions::Test < TestCase
+  def test_session
+    get '/one'
+    follow_redirect!
+
+    get '/two'
+    follow_redirect!
+
+    get '/three'
+    assert_body "[42, 56, 99]"
+  end
+end