Body... wanna *stream* my body? Body... such a thrill my body!

Added stream as class level method to make it explicit when to stream.
Render also accepts :stream as option.

1 files changed, 62 insertions, 0 deletions

diff --git a/actionpack/test/controller/new_base/render_streaming_test.rb b/actionpack/test/controller/new_base/render_streaming_test.rb
new file mode 100644
index 0000000000..27ba4b1a29
--- /dev/null
+++ b/actionpack/test/controller/new_base/render_streaming_test.rb
@@ -0,0 +1,62 @@
+require 'abstract_unit'
+
+module RenderStreaming
+  class BasicController < ActionController::Base
+    self.view_paths = [ActionView::FixtureResolver.new(
+      "render_streaming/basic/hello_world.html.erb" => "Hello world",
+      "layouts/application.html.erb" => "<%= yield %>, I'm here!"
+    )]
+
+    layout "application"
+    stream :only => :hello_world
+
+    def hello_world
+    end
+
+    def explicit
+      render :action => "hello_world", :stream => true
+    end
+
+    def no_layout
+      render :action => "hello_world", :stream => true, :layout => false
+    end
+
+    def explicit_cache
+      headers["Cache-Control"] = "private"
+      render :action => "hello_world", :stream => true
+    end
+  end
+
+  class StreamingTest < Rack::TestCase
+    test "rendering with streaming enabled at the class level" do
+      get "/render_streaming/basic/hello_world"
+      assert_body "b\r\nHello world\r\nb\r\n, I'm here!\r\n0\r\n\r\n"
+      assert_streaming!
+    end
+
+    test "rendering with streaming given to render" do
+      get "/render_streaming/basic/explicit"
+      assert_body "b\r\nHello world\r\nb\r\n, I'm here!\r\n0\r\n\r\n"
+      assert_streaming!
+    end
+
+    test "rendering with streaming do not override explicit cache control given to render" do
+      get "/render_streaming/basic/explicit_cache"
+      assert_body "b\r\nHello world\r\nb\r\n, I'm here!\r\n0\r\n\r\n"
+      assert_streaming! "private"
+    end
+
+    test "rendering with streaming no layout" do
+      get "/render_streaming/basic/no_layout"
+      assert_body "b\r\nHello world\r\n0\r\n\r\n"
+      assert_streaming!
+    end
+
+    def assert_streaming!(cache="no-cache")
+      assert_status 200
+      assert_equal nil, headers["Content-Length"]
+      assert_equal "chunked", headers["Transfer-Encoding"]
+      assert_equal cache, headers["Cache-Control"]
+    end
+  end if defined?(Fiber)
+end