Mercurial > vim

annotate src/testdir/test_channel.vim @ 7935:3f2e0b62003d v7.4.1263

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commit https://github.com/vim/vim/commit/4d919d748e4e435edb135aa5ccf6ee7de9212023 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Feb 5 22:36:41 2016 +0100 patch 7.4.1263 Problem: ch_open() hangs when the server isn't running. Solution: Add a timeout. Use a dict to pass arguments. (Yasuhiro Matsumoto)
author Christian Brabandt <cb@256bit.org>
date Fri, 05 Feb 2016 22:45:06 +0100
parents 1f0743f4f88f
children dcc0bd6b1574
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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 pkill command to make sure the server can be stopped.
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12 if !executable('python') || !executable('pkill')
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13 finish
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14 endif
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15 elseif has('win32')
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16 " Use Python Launcher for Windows (py.exe).
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17 if !executable('py')
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18 finish
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19 endif
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20 else
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21 finish
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22 endif
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23
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24 let s:port = -1
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26 func s:start_server()
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27 " The Python program writes the port number in Xportnr.
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28 call delete("Xportnr")
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29
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30 if has('win32')
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31 silent !start cmd /c start "test_channel" py test_channel.py
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32 else
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33 silent !python test_channel.py&
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34 endif
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35
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36 " Wait for up to 2 seconds for the port number to be there.
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37 let cnt = 20
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38 let l = []
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39 while cnt > 0
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40 try
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41 let l = readfile("Xportnr")
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42 catch
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43 endtry
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44 if len(l) >= 1
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45 break
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46 endif
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47 sleep 100m
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48 let cnt -= 1
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49 endwhile
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50 call delete("Xportnr")
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51
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52 if len(l) == 0
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53 " Can't make the connection, give up.
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54 call s:kill_server()
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55 call assert_false(1, "Can't start test_channel.py")
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56 return -1
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57 endif
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58 let s:port = l[0]
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59
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60 let handle = ch_open('localhost:' . s:port)
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61 return handle
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62 endfunc
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63
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64 func s:kill_server()
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65 if has('win32')
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66 call system('taskkill /IM py.exe /T /F /FI "WINDOWTITLE eq test_channel"')
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67 else
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68 call system("pkill -f test_channel.py")
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69 endif
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70 endfunc
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71
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72 let s:responseHandle = -1
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73 let s:responseMsg = ''
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74 func s:RequestHandler(handle, msg)
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75 let s:responseHandle = a:handle
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76 let s:responseMsg = a:msg
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77 endfunc
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78
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79 func Test_communicate()
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80 let handle = s:start_server()
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81 if handle < 0
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82 return
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83 endif
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84
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85 " Simple string request and reply.
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86 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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87
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88 " Request that triggers sending two ex commands. These will usually be
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89 " handled before getting the response, but it's not guaranteed, thus wait a
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90 " tiny bit for the commands to get executed.
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91 call assert_equal('ok', ch_sendexpr(handle, 'make change'))
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92 sleep 10m
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93 call assert_equal('added1', getline(line('$') - 1))
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94 call assert_equal('added2', getline('$'))
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95
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96 " Send a request with a specific handler.
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97 call ch_sendexpr(handle, 'hello!', 's:RequestHandler')
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98 sleep 10m
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99 call assert_equal(handle, s:responseHandle)
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100 call assert_equal('got it', s:responseMsg)
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101
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102 " Send an eval request that works.
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103 call assert_equal('ok', ch_sendexpr(handle, 'eval-works'))
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104 sleep 10m
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105 call assert_equal([-1, 'foo123'], ch_sendexpr(handle, 'eval-result'))
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106
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107 " Send an eval request that fails.
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108 call assert_equal('ok', ch_sendexpr(handle, 'eval-fails'))
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109 sleep 10m
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110 call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
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111
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112 " Send a bad eval request. There will be no response.
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113 call assert_equal('ok', ch_sendexpr(handle, 'eval-bad'))
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114 sleep 10m
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115 call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
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116
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117 " make the server quit, can't check if this works, should not hang.
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118 call ch_sendexpr(handle, '!quit!', 0)
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119
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120 call s:kill_server()
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121 endfunc
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122
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123 " Test that we can open two channels.
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124 func Test_two_channels()
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125 let handle = s:start_server()
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126 if handle < 0
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127 return
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128 endif
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129 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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130
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131 let newhandle = ch_open('localhost:' . s:port)
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132 call assert_equal('got it', ch_sendexpr(newhandle, 'hello!'))
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133 call assert_equal('got it', ch_sendexpr(handle, 'hello!'))
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134
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135 call ch_close(handle)
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136 call assert_equal('got it', ch_sendexpr(newhandle, 'hello!'))
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137
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138 call s:kill_server()
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139 endfunc
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140
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141 " Test that a server crash is handled gracefully.
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142 func Test_server_crash()
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143 let handle = s:start_server()
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144 if handle < 0
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145 return
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146 endif
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147 call ch_sendexpr(handle, '!crash!')
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148
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149 " kill the server in case if failed to crash
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150 sleep 10m
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151 call s:kill_server()
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152 endfunc