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annotate src/testdir/test_channel.py @ 35167:6dddafdbe6f9 default tip

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Added tag v9.1.0409 for changeset 0b259135fb3a4ce87fc1ff0673ae9b61cb7ed555
author Christian Brabandt <cb@256bit.org>
date Sun, 12 May 2024 00:15:05 +0200
parents 8492bbc9f533
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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e373843e2980 patch 8.2.0557: no IPv6 support for channels
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parents: 13351
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1 #!/usr/bin/env python
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2 #
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3 # Server that will accept connections from a Vim channel.
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4 # Used by test_channel.vim.
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5 #
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6 # This requires Python 2.6 or later.
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7
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8 from __future__ import print_function
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9 import json
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10 import socket
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11 import sys
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12 import time
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13 import threading
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14
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15 try:
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16 # Python 3
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17 import socketserver
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18 except ImportError:
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19 # Python 2
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20 import SocketServer as socketserver
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21
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22 class TestingRequestHandler(socketserver.BaseRequestHandler):
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23 def handle(self):
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24 print("=== socket opened ===")
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25 while True:
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26 try:
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27 received = self.request.recv(4096).decode('utf-8')
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28 except socket.error:
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29 print("=== socket error ===")
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30 break
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31 except IOError:
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32 print("=== socket closed ===")
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33 break
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34 if received == '':
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35 print("=== socket closed ===")
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36 break
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37 print("received: {0}".format(received))
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38
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39 # We may receive two messages at once. Take the part up to the
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40 # newline, which should be after the matching "]".
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41 todo = received
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42 while todo != '':
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43 splitidx = todo.find('\n')
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44 if splitidx < 0:
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45 used = todo
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46 todo = ''
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47 else:
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48 used = todo[:splitidx]
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49 todo = todo[splitidx + 1:]
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50 if used != received:
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51 print("using: {0}".format(used))
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52
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53 try:
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54 decoded = json.loads(used)
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55 except ValueError:
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56 print("json decoding failed")
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57 decoded = [-1, '']
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58
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59 # Send a response if the sequence number is positive.
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60 if decoded[0] >= 0:
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61 if decoded[1] == 'hello!':
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62 # simply send back a string
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63 response = "got it"
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64 elif decoded[1] == 'malformed1':
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65 cmd = '["ex",":"]wrong!["ex","smi"]'
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66 print("sending: {0}".format(cmd))
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67 self.request.sendall(cmd.encode('utf-8'))
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68 response = "ok"
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69 # Need to wait for Vim to give up, otherwise it
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70 # sometimes fails on OS X.
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71 time.sleep(0.2)
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72 elif decoded[1] == 'malformed2':
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73 cmd = '"unterminated string'
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74 print("sending: {0}".format(cmd))
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75 self.request.sendall(cmd.encode('utf-8'))
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76 response = "ok"
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77 # Need to wait for Vim to give up, otherwise the double
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78 # quote in the "ok" response terminates the string.
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79 time.sleep(0.2)
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80 elif decoded[1] == 'malformed3':
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81 cmd = '["ex","missing ]"'
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82 print("sending: {0}".format(cmd))
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83 self.request.sendall(cmd.encode('utf-8'))
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84 response = "ok"
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85 # Need to wait for Vim to give up, otherwise the ]
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86 # in the "ok" response terminates the list.
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87 time.sleep(0.2)
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88 elif decoded[1] == 'split':
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89 cmd = '["ex","let '
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90 print("sending: {0}".format(cmd))
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91 self.request.sendall(cmd.encode('utf-8'))
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92 time.sleep(0.01)
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93 cmd = 'g:split = 123"]'
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94 print("sending: {0}".format(cmd))
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95 self.request.sendall(cmd.encode('utf-8'))
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96 response = "ok"
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97 elif decoded[1].startswith("echo "):
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98 # send back the argument
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99 response = decoded[1][5:]
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100 elif decoded[1] == 'make change':
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101 # Send two ex commands at the same time, before
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102 # replying to the request.
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103 cmd = '["ex","call append(\\"$\\",\\"added1\\")"]'
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104 cmd += '["ex","call append(\\"$\\",\\"added2\\")"]'
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105 print("sending: {0}".format(cmd))
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106 self.request.sendall(cmd.encode('utf-8'))
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107 response = "ok"
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108 elif decoded[1] == 'echoerr':
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109 cmd = '["ex","echoerr \\\"this is an error\\\""]'
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110 print("sending: {0}".format(cmd))
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111 self.request.sendall(cmd.encode('utf-8'))
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112 response = "ok"
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113 # Wait a bit, so that the "ex" command is handled
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114 # before the "ch_evalexpr() returns. Otherwise we are
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115 # outside the try/catch when the "ex" command is
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116 # handled.
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117 time.sleep(0.02)
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118 elif decoded[1] == 'bad command':
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119 cmd = '["ex","foo bar"]'
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120 print("sending: {0}".format(cmd))
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121 self.request.sendall(cmd.encode('utf-8'))
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122 response = "ok"
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123 elif decoded[1] == 'do normal':
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124 # Send a normal command.
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125 cmd = '["normal","G$s more\u001b"]'
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126 print("sending: {0}".format(cmd))
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127 self.request.sendall(cmd.encode('utf-8'))
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128 response = "ok"
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129 elif decoded[1] == 'eval-works':
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130 # Send an eval request. We ignore the response.
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131 cmd = '["expr","\\"foo\\" . 123", -1]'
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132 print("sending: {0}".format(cmd))
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133 self.request.sendall(cmd.encode('utf-8'))
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134 response = "ok"
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135 elif decoded[1] == 'eval-special':
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136 # Send an eval request. We ignore the response.
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137 cmd = '["expr","\\"foo\x7f\x10\x01bar\\"", -2]'
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138 print("sending: {0}".format(cmd))
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139 self.request.sendall(cmd.encode('utf-8'))
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140 response = "ok"
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141 elif decoded[1] == 'eval-getline':
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142 # Send an eval request. We ignore the response.
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143 cmd = '["expr","getline(3)", -3]'
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144 print("sending: {0}".format(cmd))
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145 self.request.sendall(cmd.encode('utf-8'))
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diff changeset
146 response = "ok"
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147 elif decoded[1] == 'eval-fails':
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148 # Send an eval request that will fail.
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149 cmd = '["expr","xxx", -4]'
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150 print("sending: {0}".format(cmd))
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151 self.request.sendall(cmd.encode('utf-8'))
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152 response = "ok"
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153 elif decoded[1] == 'eval-error':
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154 # Send an eval request that works but the result can't
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155 # be encoded.
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156 cmd = '["expr","function(\\"tr\\")", -5]'
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157 print("sending: {0}".format(cmd))
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158 self.request.sendall(cmd.encode('utf-8'))
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159 response = "ok"
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160 elif decoded[1] == 'eval-bad':
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161 # Send an eval request missing the third argument.
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162 cmd = '["expr","xxx"]'
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163 print("sending: {0}".format(cmd))
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164 self.request.sendall(cmd.encode('utf-8'))
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165 response = "ok"
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166 elif decoded[1] == 'an expr':
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167 # Send an expr request.
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168 cmd = '["expr","setline(\\"$\\", [\\"one\\",\\"two\\",\\"three\\"])"]'
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169 print("sending: {0}".format(cmd))
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170 self.request.sendall(cmd.encode('utf-8'))
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171 response = "ok"
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172 elif decoded[1] == 'call-func':
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173 cmd = '["call","MyFunction",[1,2,3], 0]'
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174 print("sending: {0}".format(cmd))
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175 self.request.sendall(cmd.encode('utf-8'))
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176 response = "ok"
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177 elif decoded[1] == 'redraw':
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178 cmd = '["redraw",""]'
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179 print("sending: {0}".format(cmd))
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180 self.request.sendall(cmd.encode('utf-8'))
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181 response = "ok"
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182 elif decoded[1] == 'redraw!':
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183 cmd = '["redraw","force"]'
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184 print("sending: {0}".format(cmd))
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185 self.request.sendall(cmd.encode('utf-8'))
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186 response = "ok"
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187 elif decoded[1] == 'empty-request':
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188 cmd = '[]'
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189 print("sending: {0}".format(cmd))
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190 self.request.sendall(cmd.encode('utf-8'))
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191 response = "ok"
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192 elif decoded[1] == 'eval-result':
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193 # Send back the last received eval result.
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194 response = last_eval
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195 elif decoded[1] == 'call me':
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196 cmd = '[0,"we called you"]'
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197 print("sending: {0}".format(cmd))
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198 self.request.sendall(cmd.encode('utf-8'))
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199 response = "ok"
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200 elif decoded[1] == 'call me again':
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201 cmd = '[0,"we did call you"]'
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202 print("sending: {0}".format(cmd))
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203 self.request.sendall(cmd.encode('utf-8'))
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204 response = ""
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205 elif decoded[1] == 'send zero':
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206 cmd = '[0,"zero index"]'
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207 print("sending: {0}".format(cmd))
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208 self.request.sendall(cmd.encode('utf-8'))
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209 response = "sent zero"
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210 elif decoded[1] == 'close me':
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211 print("closing")
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212 self.request.close()
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213 response = ""
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214 elif decoded[1] == 'wait a bit':
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215 time.sleep(0.2)
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216 response = "waited"
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217 elif decoded[1] == '!quit!':
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218 # we're done
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219 self.server.shutdown()
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220 return
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221 elif decoded[1] == '!crash!':
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222 # Crash!
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223 42 / 0
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224 else:
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225 response = "what?"
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226
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227 if response == "":
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228 print("no response")
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229 else:
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230 encoded = json.dumps([decoded[0], response])
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231 print("sending: {0}".format(encoded))
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232 self.request.sendall(encoded.encode('utf-8'))
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233
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234 # Negative numbers are used for "eval" responses.
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235 elif decoded[0] < 0:
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236 last_eval = decoded
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237
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238 class ThreadedTCPRequestHandler(TestingRequestHandler):
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239 def setup(self):
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240 self.request.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
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241
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242 class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
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243 pass
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244
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245 def writePortInFile(port):
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246 # Write the port number in Xportnr, so that the test knows it.
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247 f = open("Xportnr", "w")
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248 f.write("{0}".format(port))
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249 f.close()
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250
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251 def main(host, port, server_class=ThreadedTCPServer):
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252 # Wait half a second before opening the port to test waittime in ch_open().
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253 # We do want to get the port number, get that first. We cannot open the
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254 # socket, guess a port is free.
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255 if len(sys.argv) >= 2 and sys.argv[1] == 'delay':
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256 port = 13684
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257 writePortInFile(port)
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258
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259 print("Wait for it...")
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260 time.sleep(0.5)
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261
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262 addrs = socket.getaddrinfo(host, port, 0, 0, socket.IPPROTO_TCP)
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263 # Each addr is a (family, type, proto, canonname, sockaddr) tuple
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264 sockaddr = addrs[0][4]
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265 server_class.address_family = addrs[0][0]
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266
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267 server = server_class(sockaddr[0:2], ThreadedTCPRequestHandler)
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268 ip, port = server.server_address[0:2]
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269
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270 # Start a thread with the server. That thread will then start a new thread
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271 # for each connection.
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272 server_thread = threading.Thread(target=server.serve_forever)
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273 server_thread.start()
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274
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275 writePortInFile(port)
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276
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277 print("Listening on port {0}".format(port))
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278
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279 # Main thread terminates, but the server continues running
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280 # until server.shutdown() is called.
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281 try:
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282 while server_thread.is_alive():
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283 server_thread.join(1)
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284 except (KeyboardInterrupt, SystemExit):
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285 server.shutdown()
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286
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287 if __name__ == "__main__":
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288 main("localhost", 0)