From 1c9ea0113d007d57bb8f793ebe7a64a3dcad7bc7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?K=C3=A9vin=20Dunglas?= <kevin@dunglas.fr>
Date: Thu, 27 Apr 2023 01:44:01 +0200
Subject: caddyhttp: Impl `ResponseWriter.Unwrap()`, prep for Go 1.20's
 `ResponseController` (#5509)

* feat: add support for ResponseWriter.Unwrap()

* cherry-pick Francis' code
---
 modules/caddyhttp/responsewriter_test.go | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'modules/caddyhttp/responsewriter_test.go')

diff --git a/modules/caddyhttp/responsewriter_test.go b/modules/caddyhttp/responsewriter_test.go
index 1913932..492fcad 100644
--- a/modules/caddyhttp/responsewriter_test.go
+++ b/modules/caddyhttp/responsewriter_test.go
@@ -95,6 +95,14 @@ func TestResponseWriterWrapperReadFrom(t *testing.T) {
 	}
 }
 
+func TestResponseWriterWrapperUnwrap(t *testing.T) {
+	w := &ResponseWriterWrapper{&baseRespWriter{}}
+
+	if _, ok := w.Unwrap().(*baseRespWriter); !ok {
+		t.Errorf("Unwrap() doesn't return the underlying ResponseWriter")
+	}
+}
+
 func TestResponseRecorderReadFrom(t *testing.T) {
 	tests := map[string]struct {
 		responseWriter responseWriterSpy
-- 
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