diff --git a/tests/test-http-api-httpv2.t b/tests/test-http-api-httpv2.t
--- a/tests/test-http-api-httpv2.t
+++ b/tests/test-http-api-httpv2.t
@@ -18,6 +18,7 @@ HTTP v2 protocol not enabled by default
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     GET /api/exp-http-v2-0003 HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -46,6 +47,7 @@ Request to unknown command yields 404
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -67,6 +69,7 @@ GET to read-only command yields a 405
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     GET /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -88,6 +91,7 @@ Missing Accept header results in 406
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -110,6 +114,7 @@ Bad Accept header results in 406
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: invalid\r\n
@@ -134,6 +139,7 @@ Bad Content-Type header results in 415
   >     content-type: badmedia
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -160,6 +166,7 @@ Request to read-only command works out o
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     *\r\n (glob)
@@ -196,6 +203,7 @@ Request to read-only command works out o
   > EOF
   creating http peer for wire protocol version 2
   sending customreadonly command
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -243,6 +251,7 @@ GET to read-write request yields 405
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     GET /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -264,6 +273,7 @@ Even for unknown commands
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     GET /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -285,6 +295,7 @@ SSL required by default
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -323,6 +334,7 @@ Authorized request for valid read-write 
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -362,6 +374,7 @@ Authorized request for unknown command i
   >     accept: $MEDIATYPE
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -384,6 +397,7 @@ debugreflect isn't enabled by default
   >     user-agent: test
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
@@ -424,6 +438,7 @@ Command frames can be reflected via debu
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'command1', b'args': {b'foo': b'val1', b'bar1': b'val'}}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -455,6 +470,7 @@ Multiple requests to regular command URL
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -497,6 +513,7 @@ Multiple requests to "multirequest" URL 
   >     frame 3 1 0 command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     *\r\n (glob)
@@ -550,6 +567,7 @@ Interleaved requests to "multirequest" a
   >     frame 1 1 0 command-request continuation IbookmarksDnameHlistkeys
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -615,6 +633,7 @@ Attempting to run a read-write command v
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'pushkey'}
   > EOF
   using raw connection to peer
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -641,6 +660,7 @@ Defining an invalid content encoding res
   creating http peer for wire protocol version 2
   sending heads command
   wire protocol version 2 encoder referenced in config (badencoder) is not known; ignoring
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
@@ -686,6 +706,7 @@ Defining an invalid content encoding res
   > EOF
   creating http peer for wire protocol version 2
   sending heads command
+  s> setsockopt(6, 1, 1) -> None (py3 !)
   s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n