From 60bfa5b935370bb1cc4a14bd47c6cf90a70343eb Mon Sep 17 00:00:00 2001
From: Hannes Rantzsch <hannes.rantzsch@nexenio.com>
Date: Thu, 27 Jun 2019 11:01:35 +0200
Subject: Boost 1.70 compatibility in asio_stream unit test

---
 src/tests/unit_asio_stream.cpp | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

(limited to 'src/tests/unit_asio_stream.cpp')

diff --git a/src/tests/unit_asio_stream.cpp b/src/tests/unit_asio_stream.cpp
index 5fd67cbd4..c32cfb9d8 100644
--- a/src/tests/unit_asio_stream.cpp
+++ b/src/tests/unit_asio_stream.cpp
@@ -13,11 +13,19 @@
 #include <botan/asio_stream.h>
 #include <botan/tls_callbacks.h>
 
-// first boost version to include boost/beast/experimental/test/stream.hpp
+// The boost::beast::test::stream we use is available starting from boost
+// version 1.68, so we cannot run these tests with a smaller version.
 #include <boost/version.hpp>
 #if BOOST_VERSION >= 106800
 
+// boost::beast::test::stream's include path has been changed in boost version
+// 1.70.
+#if BOOST_VERSION < 107000
 #include <boost/beast/experimental/test/stream.hpp>
+#else
+#include <boost/beast/_experimental/test/stream.hpp>
+#endif
+
 #include <boost/bind.hpp>
 
 namespace Botan_Tests {
@@ -87,7 +95,15 @@ class ThrowingMockChannel : public MockChannel
          }
    };
 
-using TestStream = boost::beast::test::stream;
+// Unfortunately, boost::beast::test::stream keeps lowest_layer_type private and
+// only friends boost::asio::ssl::stream. We need to make our own.
+class TestStream : public boost::beast::test::stream
+   {
+   public:
+      using boost::beast::test::stream::stream;
+      using lowest_layer_type = boost::beast::test::stream;
+   };
+
 using FailCount = boost::beast::test::fail_count;
 
 class AsioStream : public Botan::TLS::Stream<TestStream, MockChannel>
-- 
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