1 files changed, 181 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/session/cache_store_test.rb b/actionpack/test/dispatch/session/cache_store_test.rb
new file mode 100644
index 0000000000..73e056de23
--- /dev/null
+++ b/actionpack/test/dispatch/session/cache_store_test.rb
@@ -0,0 +1,181 @@
+require 'abstract_unit'
+
+class CacheStoreTest < ActionDispatch::IntegrationTest
+  class TestController < ActionController::Base
+    def no_session_access
+      head :ok
+    end
+
+    def set_session_value
+      session[:foo] = "bar"
+      head :ok
+    end
+
+    def set_serialized_session_value
+      session[:foo] = SessionAutoloadTest::Foo.new
+      head :ok
+    end
+
+    def get_session_value
+      render :text => "foo: #{session[:foo].inspect}"
+    end
+
+    def get_session_id
+      render :text => "#{request.session_options[:id]}"
+    end
+
+    def call_reset_session
+      session[:bar]
+      reset_session
+      session[:bar] = "baz"
+      head :ok
+    end
+
+    def rescue_action(e) raise end
+  end
+
+  def test_setting_and_getting_session_value
+    with_test_route_set do
+      get '/set_session_value'
+      assert_response :success
+      assert cookies['_session_id']
+
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: "bar"', response.body
+    end
+  end
+
+  def test_getting_nil_session_value
+    with_test_route_set do
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: nil', response.body
+    end
+  end
+
+  def test_getting_session_value_after_session_reset
+    with_test_route_set do
+      get '/set_session_value'
+      assert_response :success
+      assert cookies['_session_id']
+      session_cookie = cookies.send(:hash_for)['_session_id']
+
+      get '/call_reset_session'
+      assert_response :success
+      assert_not_equal [], headers['Set-Cookie']
+
+      cookies << session_cookie # replace our new session_id with our old, pre-reset session_id
+
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: nil', response.body, "data for this session should have been obliterated from cache"
+    end
+  end
+
+  def test_getting_from_nonexistent_session
+    with_test_route_set do
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: nil', response.body
+      assert_nil cookies['_session_id'], "should only create session on write, not read"
+    end
+  end
+
+  def test_setting_session_value_after_session_reset
+    with_test_route_set do
+      get '/set_session_value'
+      assert_response :success
+      assert cookies['_session_id']
+      session_id = cookies['_session_id']
+
+      get '/call_reset_session'
+      assert_response :success
+      assert_not_equal [], headers['Set-Cookie']
+
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: nil', response.body
+
+      get '/get_session_id'
+      assert_response :success
+      assert_not_equal session_id, response.body
+    end
+  end
+
+  def test_getting_session_id
+    with_test_route_set do
+      get '/set_session_value'
+      assert_response :success
+      assert cookies['_session_id']
+      session_id = cookies['_session_id']
+
+      get '/get_session_id'
+      assert_response :success
+      assert_equal session_id, response.body, "should be able to read session id without accessing the session hash"
+    end
+  end
+
+  def test_deserializes_unloaded_class
+    with_test_route_set do
+      with_autoload_path "session_autoload_test" do
+        get '/set_serialized_session_value'
+        assert_response :success
+        assert cookies['_session_id']
+      end
+      with_autoload_path "session_autoload_test" do
+        get '/get_session_id'
+        assert_response :success
+      end
+      with_autoload_path "session_autoload_test" do
+        get '/get_session_value'
+        assert_response :success
+        assert_equal 'foo: #<SessionAutoloadTest::Foo bar:"baz">', response.body, "should auto-load unloaded class"
+      end
+    end
+  end
+
+  def test_doesnt_write_session_cookie_if_session_id_is_already_exists
+    with_test_route_set do
+      get '/set_session_value'
+      assert_response :success
+      assert cookies['_session_id']
+
+      get '/get_session_value'
+      assert_response :success
+      assert_equal nil, headers['Set-Cookie'], "should not resend the cookie again if session_id cookie is already exists"
+    end
+  end
+
+  def test_prevents_session_fixation
+    with_test_route_set do
+      get '/get_session_value'
+      assert_response :success
+      assert_equal 'foo: nil', response.body
+      session_id = cookies['_session_id']
+
+      reset!
+
+      get '/set_session_value', :_session_id => session_id
+      assert_response :success
+      assert_not_equal session_id, cookies['_session_id']
+    end
+  end
+
+  private
+    def with_test_route_set
+      with_routing do |set|
+        set.draw do
+          match ':action', :to => ::CacheStoreTest::TestController
+        end
+
+        @app = self.class.build_app(set) do |middleware|
+          cache = ActiveSupport::Cache::MemoryStore.new
+          middleware.use ActionDispatch::Session::CacheStore, :key => '_session_id', :cache => cache
+          middleware.delete "ActionDispatch::ShowExceptions"
+        end
+
+        yield
+      end
+    end
+end