gistfile1.rb

require 'rubygems'
require 'spec/autorun'

describe "binding sockets" do
  it "should be possible to bind to a socket" do
    s = UDPSocket.new
    s.bind('localhost', 4422)
  end

  it "should be possible to bind to a socket again" do
    s = UDPSocket.new
    s.bind('localhost', 4422)
  end
end

gistfile2.txt

∴ /Users/sam/Desktop
λ ruby bind_spec.rb
.F

1)
Errno::EADDRINUSE in 'binding sockets should be possible to bind to a socket again'
Address already in use - bind(2)
bind_spec.rb:12:in `bind'
bind_spec.rb:12:
bind_spec.rb:4:

Finished in 0.004195 seconds

2 examples, 1 failure

∴ /Users/sam/Desktop
λ jruby bind_spec.rb               
.F

1)
SocketError in 'binding sockets should be possible to bind to a socket again'
bind: name or service not known
bind_spec.rb:12:
:1

Finished in 0.058 seconds

2 examples, 1 failure