1 files changed, 31 insertions, 0 deletions
diff --git a/actionview/test/template/erb/helper.rb b/actionview/test/template/erb/helper.rb
new file mode 100644
index 0000000000..727cc3dcf2
--- /dev/null
+++ b/actionview/test/template/erb/helper.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module ERBTest
+  class ViewContext
+    include ActionView::Helpers::UrlHelper
+    include ActionView::Helpers::TagHelper
+    include ActionView::Helpers::JavaScriptHelper
+    include ActionView::Helpers::FormHelper
+
+    attr_accessor :output_buffer, :controller
+
+    def protect_against_forgery?() false end
+  end
+
+  class BlockTestCase < ActiveSupport::TestCase
+    def render_content(start, inside, routes = nil)
+      routes ||= ActionDispatch::Routing::RouteSet.new.tap do |rs|
+        rs.draw { }
+      end
+      context = Class.new(ViewContext) {
+        include routes.url_helpers
+      }.new
+      template = block_helper(start, inside)
+      ActionView::Template::Handlers::ERB.erb_implementation.new(template).evaluate(context)
+    end
+
+    def block_helper(str, rest)
+      "<%= #{str} do %>#{rest}<% end %>"
+    end
+  end
+end