Mercurial > vim

annotate src/testdir/test_channel.vim @ 7965:646d5148fee2 v7.4.1278

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commit https://github.com/vim/vim/commit/55fab439a6f3bba6dbe780ac034b84d5822a1a96 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 7 16:53:13 2016 +0100 patch 7.4.1278 Problem: When jsonencode() fails it still returns something. Solution: Return an empty string on failure.
author Christian Brabandt <cb@256bit.org>
date Sun, 07 Feb 2016 17:00:05 +0100
parents b74549818500
children 5c30ba57aaea
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1 " Test for channel functions.
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2 scriptencoding utf-8
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3
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4 if !has('channel')
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5 finish
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6 endif
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7
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8 " This test requires the Python command to run the test server.
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9 " This most likely only works on Unix and Windows.
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10 if has('unix')
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11 " We also need the job feature or the pkill command to make sure the server
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12 " can be stopped.
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13 if !(executable('python') && (has('job') || executable('pkill')))
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14 finish
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15 endif
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16 elseif has('win32')
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17 " Use Python Launcher for Windows (py.exe).
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18 if !executable('py')
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19 finish
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20 endif
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21 else
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22 finish
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23 endif
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24
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25 let s:port = -1
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27 func s:start_server()
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28 " The Python program writes the port number in Xportnr.
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29 call delete("Xportnr")
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31 if has('job')
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32 let s:job = job_start("python test_channel.py")
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33 elseif has('win32')
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34 silent !start cmd /c start "test_channel" py test_channel.py
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35 else
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36 silent !python test_channel.py&
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37 endif
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39 " Wait for up to 2 seconds for the port number to be there.
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40 let cnt = 20
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41 let l = []
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42 while cnt > 0
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43 try
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44 let l = readfile("Xportnr")
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45 catch
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46 endtry
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47 if len(l) >= 1
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48 break
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49 endif
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50 sleep 100m
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51 let cnt -= 1
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52 endwhile
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53 call delete("Xportnr")
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54
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55 if len(l) == 0
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56 " Can't make the connection, give up.
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57 call s:kill_server()
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58 call assert_false(1, "Can't start test_channel.py")
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59 return -1
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60 endif
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61 let s:port = l[0]
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62
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63 let handle = ch_open('localhost:' . s:port)
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64 return handle
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65 endfunc
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66
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67 func s:kill_server()
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68 if has('job')
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69 call job_stop(s:job)
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70 elseif has('win32')
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71 call system('taskkill /IM py.exe /T /F /FI "WINDOWTITLE eq test_channel"')
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72 else
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73 call system("pkill -f test_channel.py")
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74 endif
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75 endfunc
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76
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77 let s:responseHandle = -1
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78 let s:responseMsg = ''
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79 func s:RequestHandler(handle, msg)
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80 let s:responseHandle = a:handle
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81 let s:responseMsg = a:msg
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82 endfunc
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83
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84 func Test_communicate()
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85 let handle = s:start_server()
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86 if handle < 0
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87 return
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88 endif
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89
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90 " Simple string request and reply.
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91 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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92
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93 " Request that triggers sending two ex commands. These will usually be
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94 " handled before getting the response, but it's not guaranteed, thus wait a
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95 " tiny bit for the commands to get executed.
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96 call assert_equal('ok', ch_sendexpr(handle, 'make change'))
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97 sleep 10m
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98 call assert_equal('added1', getline(line('$') - 1))
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99 call assert_equal('added2', getline('$'))
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100
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101 call assert_equal('ok', ch_sendexpr(handle, 'do normal'))
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102 sleep 10m
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103 call assert_equal('added more', getline('$'))
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104
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105 " Send a request with a specific handler.
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106 call ch_sendexpr(handle, 'hello!', 's:RequestHandler')
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107 sleep 10m
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108 call assert_equal(handle, s:responseHandle)
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109 call assert_equal('got it', s:responseMsg)
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110
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111 " Send an eval request that works.
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112 call assert_equal('ok', ch_sendexpr(handle, 'eval-works'))
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113 sleep 10m
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114 call assert_equal([-1, 'foo123'], ch_sendexpr(handle, 'eval-result'))
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115
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116 " Send an eval request that fails.
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117 call assert_equal('ok', ch_sendexpr(handle, 'eval-fails'))
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118 sleep 10m
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119 call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
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120
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121 " Send an eval request that works but can't be encoded.
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122 call assert_equal('ok', ch_sendexpr(handle, 'eval-error'))
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123 sleep 10m
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124 call assert_equal([-3, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
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125
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126 " Send a bad eval request. There will be no response.
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127 call assert_equal('ok', ch_sendexpr(handle, 'eval-bad'))
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128 sleep 10m
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129 call assert_equal([-3, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
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130
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131 " Send an expr request
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132 call assert_equal('ok', ch_sendexpr(handle, 'an expr'))
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133 sleep 10m
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134 call assert_equal('one', getline(line('$') - 2))
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135 call assert_equal('two', getline(line('$') - 1))
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136 call assert_equal('three', getline('$'))
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137
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138 " Request a redraw, we don't check for the effect.
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139 call assert_equal('ok', ch_sendexpr(handle, 'redraw'))
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140 call assert_equal('ok', ch_sendexpr(handle, 'redraw!'))
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141
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142 call assert_equal('ok', ch_sendexpr(handle, 'empty-request'))
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143
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144 " make the server quit, can't check if this works, should not hang.
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145 call ch_sendexpr(handle, '!quit!', 0)
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146
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147 call s:kill_server()
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148 endfunc
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149
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150 " Test that we can open two channels.
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151 func Test_two_channels()
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152 let handle = s:start_server()
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153 if handle < 0
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154 return
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155 endif
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156 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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157
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158 let newhandle = ch_open('localhost:' . s:port)
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159 call assert_equal('got it', ch_sendexpr(newhandle, 'hello!'))
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160 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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161
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162 call ch_close(handle)
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163 call assert_equal('got it', ch_sendexpr(newhandle, 'hello!'))
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164
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165 call s:kill_server()
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166 endfunc
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167
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168 " Test that a server crash is handled gracefully.
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169 func Test_server_crash()
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170 let handle = s:start_server()
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171 if handle < 0
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172 return
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173 endif
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174 call ch_sendexpr(handle, '!crash!')
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175
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176 " kill the server in case if failed to crash
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177 sleep 10m
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178 call s:kill_server()
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179 endfunc