Return a valid Rack response from bare ActionController::Metal

1 files changed, 27 insertions, 0 deletions

diff --git a/actionpack/test/controller/new_base/bare_metal_test.rb b/actionpack/test/controller/new_base/bare_metal_test.rb
new file mode 100644
index 0000000000..df4b39a103
--- /dev/null
+++ b/actionpack/test/controller/new_base/bare_metal_test.rb
@@ -0,0 +1,27 @@
+require "abstract_unit"
+
+module BareMetalTest
+  class BareController < ActionController::Metal
+    def index
+      self.response_body = "Hello world"
+    end
+  end
+
+  class BareTest < ActiveSupport::TestCase
+    test "response body is a Rack-compatible response" do
+      status, headers, body = BareController.action(:index).call(Rack::MockRequest.env_for("/"))
+      assert_equal 200, status
+      string = ""
+
+      body.each do |part|
+        assert part.is_a?(String), "Each part of the body must be a String"
+        string << part
+      end
+
+      assert headers.is_a?(Hash), "Headers must be a Hash"
+      assert headers["Content-Type"], "Content-Type must exist"
+
+      assert_equal "Hello world", string
+    end
+  end
+end
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