Fix testing helpers that use Action View's capturing helpers (e.g. content_for)

1 files changed, 8 insertions, 0 deletions

diff --git a/actionview/test/template/test_case_test.rb b/actionview/test/template/test_case_test.rb
index f2f64ffa71..05e5f21ce4 100644
--- a/actionview/test/template/test_case_test.rb
+++ b/actionview/test/template/test_case_test.rb
@@ -282,6 +282,14 @@ module ActionView
       @customers = [DeveloperStruct.new("Eloy"), DeveloperStruct.new("Manfred")]
       assert_match(/Hello: EloyHello: Manfred/, render(file: "test/list"))
     end
+
+    test "is able to use helpers that depend on the view flow" do
+      assert_not content_for?(:foo)
+
+      content_for :foo, "bar"
+      assert content_for?(:foo)
+      assert_equal "bar", content_for(:foo)
+    end
   end
 
   class AssertionsTest < ActionView::TestCase