3 files changed, 59 insertions, 0 deletions
diff --git a/test/socket/test_socket.rb b/test/socket/test_socket.rb
index 659ebabba3..61cb3bb066 100644
--- a/test/socket/test_socket.rb
+++ b/test/socket/test_socket.rb
@@ -70,6 +70,22 @@ class TestSocket < Test::Unit::TestCase
     }
   end
 
+  def test_bind
+    Socket.open(Socket::AF_INET, Socket::SOCK_STREAM, 0) {|bound|
+      bound.bind(Socket.sockaddr_in(0, "127.0.0.1"))
+      addr = bound.getsockname
+      port, = Socket.unpack_sockaddr_in(addr)
+
+      Socket.open(Socket::AF_INET, Socket::SOCK_STREAM, 0) {|s|
+        e = assert_raises(Errno::EADDRINUSE) do
+          s.bind(Socket.sockaddr_in(port, "127.0.0.1"))
+        end
+
+        assert_match "bind(2) for \"127.0.0.1\" port #{port}", e.message
+      }
+    }
+  end
+
   def test_getaddrinfo
     # This should not send a DNS query because AF_UNIX.
     assert_raise(SocketError) { Socket.getaddrinfo("www.kame.net", 80, "AF_UNIX") }
diff --git a/test/socket/test_tcp.rb b/test/socket/test_tcp.rb
index 2634e20651..3cf1e3c36d 100644
--- a/test/socket/test_tcp.rb
+++ b/test/socket/test_tcp.rb
@@ -6,6 +6,23 @@ end
 
 
 class TestSocket_TCPSocket < Test::Unit::TestCase
+  def test_initialize_failure
+    s = TCPServer.new("localhost", nil)
+    server_port = s.addr[1]
+
+    c = TCPSocket.new("localhost", server_port)
+    client_port = c.addr[1]
+
+    begin
+      # TCPServer.new uses SO_REUSEADDR so we must create a failure on the
+      # local address.
+      TCPSocket.new("localhost", server_port, "localhost", client_port)
+      flunk "expected SystemCallError"
+    rescue SystemCallError => e
+      assert_match "for \"localhost\" port #{client_port}", e.message
+    end
+  end
+
   def test_recvfrom
     svr = TCPServer.new("localhost", 0)
     th = Thread.new {
diff --git a/test/socket/test_udp.rb b/test/socket/test_udp.rb
index fe329c8c16..82b5a5daa9 100644
--- a/test/socket/test_udp.rb
+++ b/test/socket/test_udp.rb
@@ -36,4 +36,30 @@ class TestSocket_UDPSocket < Test::Unit::TestCase
       s.bind(host, 2000)
     }
   end
+
+  def test_bind_addrinuse
+    host = "127.0.0.1"
+    port = 2001
+
+    in_use = UDPSocket.new
+    in_use.bind(host, port)
+
+    s = UDPSocket.new
+    
+    e = assert_raises(Errno::EADDRINUSE) do
+      s.bind(host, port)
+    end
+
+    assert_match "bind(2) for \"#{host}\" port #{port}", e.message
+  end
+
+  def test_send_too_long
+    u = UDPSocket.new
+
+    e = assert_raises Errno::EMSGSIZE do
+      u.send "\0" * 100_000, 0, "127.0.0.1", 7 # echo
+    end
+
+    assert_match 'for "127.0.0.1" port 7', e.message
+  end
 end if defined?(UDPSocket)