1 files changed, 6 insertions, 4 deletions
diff --git a/test/socket/test_unix.rb b/test/socket/test_unix.rb
index a44ef2de38..90f641efe5 100644
--- a/test/socket/test_unix.rb
+++ b/test/socket/test_unix.rb
@@ -339,10 +339,12 @@ class TestSocket_UNIXSocket < Test::Unit::TestCase
     assert_raise(ArgumentError) { UNIXServer.new("a" * 300) }
   end
 
-  #def test_nul
-  #  # path may contain NULs for abstract unix sockets.  [ruby-core:10288]
-  #  assert_raise(ArgumentError) { Socket.sockaddr_un("a\0b") }
-  #end
+  def test_abstract_namespace
+    return if /linux/ !~ RUBY_PLATFORM
+    addr = Socket.pack_sockaddr_un("\0foo")
+    assert_match(/\0foo\z/, addr)
+    assert_equal("\0foo", Socket.unpack_sockaddr_un(addr))
+  end
 
   def test_dgram_pair
     s1, s2 = UNIXSocket.pair(Socket::SOCK_DGRAM)