1 files changed, 79 insertions, 0 deletions
diff --git a/tests/helpers/network_helper.rb b/tests/helpers/network_helper.rb
new file mode 100644
index 00000000..ff92d382
--- /dev/null
+++ b/tests/helpers/network_helper.rb
@@ -0,0 +1,79 @@
+class LeapTest
+
+  #
+  # tcp connection helper with timeout
+  #
+  def try_tcp_connect(host, port, timeout = 5)
+    addr     = Socket.getaddrinfo(host, nil)
+    sockaddr = Socket.pack_sockaddr_in(port, addr[0][3])
+
+    Socket.new(Socket.const_get(addr[0][0]), Socket::SOCK_STREAM, 0).tap do |socket|
+      socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
+      begin
+        socket.connect_nonblock(sockaddr)
+      rescue IO::WaitReadable
+        if IO.select([socket], nil, nil, timeout) == nil
+          raise "Connection timeout"
+        else
+          socket.connect_nonblock(sockaddr)
+        end
+      rescue IO::WaitWritable
+        if IO.select(nil, [socket], nil, timeout) == nil
+          raise "Connection timeout"
+        else
+          socket.connect_nonblock(sockaddr)
+        end
+      end
+      return socket
+    end
+  end
+
+  def try_tcp_write(socket, timeout = 5)
+    begin
+      socket.write_nonblock("\0")
+    rescue IO::WaitReadable
+      if IO.select([socket], nil, nil, timeout) == nil
+        raise "Write timeout"
+      else
+        retry
+      end
+    rescue IO::WaitWritable
+      if IO.select(nil, [socket], nil, timeout) == nil
+        raise "Write timeout"
+      else
+        retry
+      end
+    end
+  end
+
+  def try_tcp_read(socket, timeout = 5)
+    begin
+      socket.read_nonblock(1)
+    rescue IO::WaitReadable
+      if IO.select([socket], nil, nil, timeout) == nil
+        raise "Read timeout"
+      else
+        retry
+      end
+    rescue IO::WaitWritable
+      if IO.select(nil, [socket], nil, timeout) == nil
+        raise "Read timeout"
+      else
+        retry
+      end
+    end
+  end
+
+  def assert_tcp_socket(host, port, msg=nil)
+    begin
+      socket = try_tcp_connect(host, port, 1)
+      #try_tcp_write(socket,1)
+      #try_tcp_read(socket,1)
+    rescue StandardError => exc
+      fail ["Failed to open socket #{host}:#{port}", exc].join("\n")
+    ensure
+      socket.close if socket
+    end
+  end
+
+end
+\ No newline at end of file