test/socket/test_nonblock.rb: new test for sendmsg_nonblock

sendmsg_nonblock was not tested on any of my systems due to the
common 64K limit.  I also don't believe UDP sockets are at all
a useful candidate for sendmsg_nonblock testing since they
should never block on sending.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50725 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 0 deletions

diff --git a/test/socket/test_nonblock.rb b/test/socket/test_nonblock.rb
index 0109d19636..4b1f209907 100644
--- a/test/socket/test_nonblock.rb
+++ b/test/socket/test_nonblock.rb
@@ -275,6 +275,19 @@ class TestSocketNonblock < Test::Unit::TestCase
     }
   end
 
+  def test_sendmsg_nonblock_seqpacket
+    if defined?(UNIXSocket) && defined?(Socket::SOCK_SEQPACKET)
+      buf = '*' * 10000
+      UNIXSocket.pair(:SEQPACKET) do |s1, s2|
+        assert_raises(IO::WaitWritable) do
+          loop { s1.sendmsg_nonblock(buf) }
+        end
+      end
+    else
+      skip "UNIXSocket.pair(:SEQPACKET) not implemented on this platform"
+    end
+  end
+
   def test_recvmsg_nonblock_error
     udp_pair {|s1, s2|
       begin