Add test to flash sweep after two redirects

This test is needed to avoid regressions in the way that flash works
now (swept in every request).

1 files changed, 20 insertions, 0 deletions

diff --git a/actionpack/test/controller/flash_test.rb b/actionpack/test/controller/flash_test.rb
index d497913dc4..ea4563afa1 100644
--- a/actionpack/test/controller/flash_test.rb
+++ b/actionpack/test/controller/flash_test.rb
@@ -231,6 +231,10 @@ class FlashIntegrationTest < ActionDispatch::IntegrationTest
     def use_flash
       render :inline => "flash: #{flash["that"]}"
     end
+
+    def redirect_without_flash
+      redirect_to '/somewhere'
+    end
   end
 
   def test_flash
@@ -245,6 +249,22 @@ class FlashIntegrationTest < ActionDispatch::IntegrationTest
     end
   end
 
+  def test_redirect
+    with_test_route_set do
+      get '/set_flash'
+      assert_response :success
+      assert_equal "hello", @request.flash["that"]
+
+      get '/redirect_without_flash'
+      assert_response :redirect
+      assert_equal "hello", @request.flash["that"]
+
+      get '/redirect_without_flash'
+      assert_response :redirect
+      assert_equal nil, @request.flash["that"]
+    end
+  end
+
   def test_just_using_flash_does_not_stream_a_cookie_back
     with_test_route_set do
       get '/use_flash'