}

	// Transport request context.
	//
	// If RoundTrip returns an error, it cancels this context before returning.
	//
	// If RoundTrip returns no error:
	//   - For an HTTP/1 request, persistConn.readLoop cancels this context
	//     after reading the request body.
	//   - For an HTTP/2 request, RoundTrip cancels this context after the HTTP/2
	//     RoundTripper returns.

			t.Errorf("QueryEscape(%q) = %q, want %q", tt.in, actual, tt.out)
		}

		// for bonus points, verify that escape:unescape is an identity.
		roundtrip, err := QueryUnescape(actual)
		if roundtrip != tt.in || err != nil {
			t.Errorf("QueryUnescape(%q) = %q, %s; want %q, %s", actual, roundtrip, err, tt.in, "[no error]")
		}
	}
}

var pathEscapeTests = []EscapeTest{
	{
		"",
		"",
		nil,
	},

	}
}

type roundTripperWithoutCloseIdle struct{}

func (roundTripperWithoutCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") }

type roundTripperWithCloseIdle func() // underlying func is CloseIdleConnections func

func (roundTripperWithCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") }
func (f roundTripperWithCloseIdle) CloseIdleConnections()               { f() }

		}
		resp.Body.Close()
	}
}

type failingRoundTripper struct{}

func (failingRoundTripper) RoundTrip(*http.Request) (*http.Response, error) {
	return nil, errors.New("some error")
}

type staticResponseRoundTripper struct{ res *http.Response }

func (rt staticResponseRoundTripper) RoundTrip(*http.Request) (*http.Response, error) {
	return rt.res, nil
}

func TestReverseProxyErrorHandler(t *testing.T) {

// [Request.Body] is set to body and will be closed (possibly
// asynchronously) by the Client methods Do, Post, and PostForm,
// and [Transport.RoundTrip].
//
// NewRequestWithContext returns a Request suitable for use with
// [Client.Do] or [Transport.RoundTrip]. To create a request for use with
// testing a Server Handler, either use the [NewRequest] function in the