1 files changed, 65 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/request_id_test.rb b/actionpack/test/dispatch/request_id_test.rb
new file mode 100644
index 0000000000..b6e8b6c3ad
--- /dev/null
+++ b/actionpack/test/dispatch/request_id_test.rb
@@ -0,0 +1,65 @@
+require 'abstract_unit'
+
+class RequestIdTest < ActiveSupport::TestCase
+  test "passing on the request id from the outside" do
+    assert_equal "external-uu-rid", stub_request('HTTP_X_REQUEST_ID' => 'external-uu-rid').uuid
+  end
+
+  test "ensure that only alphanumeric uurids are accepted" do
+    assert_equal "X-Hacked-HeaderStuff", stub_request('HTTP_X_REQUEST_ID' => '; X-Hacked-Header: Stuff').uuid
+  end
+
+  test "ensure that 255 char limit on the request id is being enforced" do
+    assert_equal "X" * 255, stub_request('HTTP_X_REQUEST_ID' => 'X' * 500).uuid
+  end
+
+  test "generating a request id when none is supplied" do
+    assert_match(/\w+/, stub_request.uuid)
+  end
+
+  private
+
+  def stub_request(env = {})
+    ActionDispatch::RequestId.new(lambda { |environment| [ 200, environment, [] ] }).call(env)
+    ActionDispatch::Request.new(env)
+  end
+end
+
+class RequestIdResponseTest < ActionDispatch::IntegrationTest
+  class TestController < ActionController::Base
+    def index
+      head :ok
+    end
+  end
+
+  test "request id is passed all the way to the response" do
+    with_test_route_set do
+      get '/'
+      assert_match(/\w+/, @response.headers["X-Request-Id"])
+    end
+  end
+
+  test "request id given on request is passed all the way to the response" do
+    with_test_route_set do
+      get '/', {}, 'HTTP_X_REQUEST_ID' => 'X' * 500
+      assert_equal "X" * 255, @response.headers["X-Request-Id"]
+    end
+  end
+
+
+  private
+
+  def with_test_route_set
+    with_routing do |set|
+      set.draw do
+        match '/', :to => ::RequestIdResponseTest::TestController.action(:index)
+      end
+
+      @app = self.class.build_app(set) do |middleware|
+        middleware.use ActionDispatch::RequestId
+      end
+
+      yield
+    end
+  end
+end
+\ No newline at end of file