Add decorator unit test

fix #302

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 * Require Visual Studio 2015 Update 3 or later
 * Use fwrite return value in file_body
+* Add decorator unit test
 
 --------------------------------------------------------------------------------
 

test/websocket/stream.cpp

@@ -109,26 +109,38 @@ public:
         return false;
     }
 
-    struct identity
+    struct test_decorator
     {
-        template<class Body, class Fields>
+        int& what;
-        void
+
-        operator()(http::message<true, Body, Fields>&)
+        test_decorator(test_decorator const&) = default;
+
+        test_decorator(int& what_)
+            : what(what_)
         {
+            what = 0;
         }
 
-        template<class Body, class Fields>
+        template<class Fields>
         void
-        operator()(http::message<false, Body, Fields>&)
+        operator()(http::header<true, Fields>&) const
         {
+            what |= 1;
+        }
+
+        template<class Fields>
+        void
+        operator()(http::header<false, Fields>&) const
+        {
+            what |= 2;
         }
     };
 
-    void testOptions()
+    void
+    testOptions()
     {
         stream<socket_type> ws(ios_);
         ws.set_option(auto_fragment{true});
-        ws.set_option(decorate(identity{}));
         ws.set_option(keep_alive{false});
         ws.set_option(write_buffer_size{2048});
         ws.set_option(message_type{opcode::text});
@@ -411,6 +423,24 @@ public:
         );
     }
 
+    void
+    testDecorator(endpoint_type const& ep)
+    {
+        error_code ec;
+        socket_type sock{ios_};
+        sock.connect(ep, ec);
+        if(! BEAST_EXPECTS(! ec, ec.message()))
+            return;
+        stream<socket_type&> ws{sock};
+        int what;
+        ws.set_option(decorate(test_decorator{what}));
+        BEAST_EXPECT(what == 0);
+        ws.handshake("localhost", "/", ec);
+        if(! BEAST_EXPECTS(! ec, ec.message()))
+            return;
+        BEAST_EXPECT(what == 1);
+    }
+
     void testMask(endpoint_type const& ep,
         yield_context do_yield)
     {
@@ -1257,6 +1287,7 @@ public:
             server.open(any, ec);
             BEAST_EXPECTS(! ec, ec.message());
             auto const ep = server.local_endpoint();
+            testDecorator(ep);
             //testInvokable1(ep);
             testInvokable2(ep);
             testInvokable3(ep);