File: test_helper.rb

package info (click to toggle)
netsed 1.2-3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid, stretch
  • size: 304 kB
  • ctags: 208
  • sloc: ansic: 640; ruby: 425; makefile: 48
file content (213 lines) | stat: -rw-r--r-- 6,581 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
#!/usr/bin/ruby
# helper function for netsed Unit::Tests
# (c) 2010 Julien Viard de Galbert <julien@silicone.homelinux.org>
#
# ---------------------------------------------------------------------------
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
#
# You may also redistribute it or any part of it under the Ruby license to
# better integrate to your ruby scripts.
# The ruby license is available at http://www.ruby-lang.org/en/LICENSE.txt
# ---------------------------------------------------------------------------


require 'socket'

LH_IPv4 = '127.0.0.1'
LH_IPv6 = '::1'


#default values for all test classes
LPORT=20000
RPORT=20001
SERVER=LH_IPv4

# Run a netsed instance with given parameters.
class NetsedRun
  attr_reader :data

  # Launch netsed with given parameters.
  def initialize(proto, lport, rhost, rport, rules, options='')
    @cmd="../netsed #{options} #{proto} #{lport} #{rhost} #{rport} #{rules.join(' ')}"
    @pipe=IO.popen(@cmd)
    @data=''
    @pipe.sync = true
    # waiting for netsed to listen
    begin
      line = @pipe.gets
      @data << line.to_s
    end until line =~ /^\[\+\] Listening on port/
  end

  # Kill (INT) and wait netsed exit
  # also returns standard output
  def kill
    Process.kill('INT', @pipe.pid)
    Process.wait(@pipe.pid)
    @data << @pipe.read
    @pipe.close
    return @data
  end

  # Returns netsed PID
  def pid
    @pipe.pid
  end
end

# TCP Server that accept multiple connections
class TCPServeMultipleConnection

  # Creates a thread server on _addr_, _port_
  # the block is called for every accepted connections (up to _nbconnections_)
  # once the block exits, the socket is closed.
  def initialize(addr, port, nbconnections) # :yields: socket, index
    dts = TCPServer.new(addr, port)  
    @th = Thread.start {
      ths=[]
      for i in 0..nbconnections-1 do
        sa=dts.accept
        ths[i] = Thread.start(i, sa) {|j, s|
          yield s,j
          s.close
        }
      end
      ths.each {|tha| tha.join}
      dts.close
    }
  end

  # Wait for the server to complete, it will once all connections are processed.
  def join
    @th.join
  end
end

# TCP Server that accept a single connection
class TCPServeSingleConnection

  # Creates a thread server on _addr_, _port_
  # the block is called for first accepted connection
  # once the block exits, the socket is closed.
  def initialize(addr, port) # :yields: socket
    dts = TCPServer.new(addr, port)  
    @th = Thread.start {
      s=dts.accept
      yield s
      s.close
      dts.close
    }
  end

  # Wait for the server to complete, it will once the connection is processed.
  def join
    @th.join
  end
end

# TCP Server that accept a single connection and sent data to it
class TCPServeSingleDataSender < TCPServeSingleConnection

  # Creates a thread server on _addr_, _port_ that send _data_ on connection,
  # then closes the socket.
  def initialize(addr, port, data)
    super(addr, port) { |s|
      s.write(data)
    }
  end
end

# TCP Server that accept a single connection and receive data from it
class TCPServeSingleDataReciever < TCPServeSingleConnection

  # Creates a thread server on _addr_, _port_ that receive up to _maxlen_
  # on connection, then closes the socket.
  def initialize(addr, port, maxlen)
    super(addr, port) { |s|
      @datarecv=s.recv(maxlen)
    }
  end

  # Wait for the server to complete, and return the received data.
  def join
    super
    return @datarecv
  end
end

# Receive up to _maxlen_ data from a TCP Socket on _addr_,_port_
def TCPSingleDataRecv(addr, port, maxlen)
  streamSock = TCPSocket.new(addr, port)  
  data = streamSock.recv( maxlen )  
  streamSock.close
  return data
end


# Send _data_ to a TCP Socket on _addr_,_port_
def TCPSingleDataSend(addr, port, data)
  streamSock = TCPSocket.new(addr, port)  
  streamSock.write( data )  
  streamSock.close
end


# Send _data_ to a UDP Socket on _addr_,_port_
def UDPSingleDataSend(addr, port, data)
  dataSock = UDPSocket.new
  dataSock.connect(addr, port)  
  dataSock.write( data )  
  dataSock.close
end

# Recursively compare two objects. Asserts if a difference was found.
#
# Note: The function is mostly inspired from the code snippet published 
# by Scott Bronson on http://gist.github.com/287675
# rewritten using Test::Unit::Assertions to better fit in tests
def assert_equal_objects(expected, actual, message=nil, path='')
  if path=='' then
    prefix="Objects differ:"
  else
    prefix="Objects differ at #{path}:"
  end
  if expected.kind_of?(Hash)
    extraexpectedkeys = expected.keys - actual.keys
    full_message = build_message(message, "#{prefix} extra keys in expected: <?>.\n", extraexpectedkeys)
    assert_block(full_message) { extraexpectedkeys.length == 0 }
    extraactualkeys = actual.keys - expected.keys
    full_message = build_message(message, "#{prefix} extra keys in actual: <?>.\n", extraactualkeys)
    assert_block(full_message) { extraactualkeys.length == 0 }
    expectedkeys=expected.keys
    begin
      expectedkeys.sort!
    rescue NoMethodError
    end
    expectedkeys.each do |key|
      assert_equal_objects expected[key], actual[key], message, path.dup << build_message(nil,"[?]",key).to_s
    end
  elsif (expected.kind_of?(Enumerable) && !expected.kind_of?(String)) && (actual.kind_of?(Enumerable) && !actual.kind_of?(String))
    full_message = build_message(message, "#{prefix} expected has #{expected.length} and actual has #{actual.length} items.\n<?> expected but was\n<?>.\n", expected, actual)
    assert_block(full_message) { expected.length == actual.length }
    (0..expected.length).each do |i|
      assert_equal_objects expected[i], actual[i], message, path.dup << "[#{i}]"
    end
  elsif expected != actual
    full_message = build_message(message, "#{prefix}\n<?> expected but was\n<?>.\n", expected, actual)
    assert_block(full_message) { false }
  end
end

# vim:sw=2:sta:et: