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annotate src/testdir/test_signals.vim @ 20696:5e91479ba748

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Added tag v8.2.0901 for changeset cea8ae407452b59d31fdabf4f7fea34ed4359b0a
author Bram Moolenaar <Bram@vim.org>
date Thu, 04 Jun 2020 18:30:05 +0200
parents 20b6d5304e56
children 34a74f5f0fb4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
16084
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1 " Test signal handling.
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2
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3 source check.vim
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4 source term_util.vim
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5
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6 CheckUnix
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7
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8 source shared.vim
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9
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10 " Check whether a signal is available on this system.
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11 func HasSignal(signal)
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12 let signals = system('kill -l')
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13 return signals =~# '\<' .. a:signal .. '\>'
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14 endfunc
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15
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16 " Test signal WINCH (window resize signal)
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17 func Test_signal_WINCH()
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18 CheckNotGui
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19 if !HasSignal('WINCH')
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20 throw 'Skipped: WINCH signal not supported'
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21 endif
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22
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23 " We do not actually want to change the size of the terminal.
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24 let old_WS = ''
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25 if exists('&t_WS')
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26 let old_WS = &t_WS
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27 let &t_WS = ''
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28 endif
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29
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30 let old_lines = &lines
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31 let old_columns = &columns
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32 let new_lines = &lines - 2
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33 let new_columns = &columns - 2
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34
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35 exe 'set lines=' .. new_lines
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36 exe 'set columns=' .. new_columns
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37 call assert_equal(new_lines, &lines)
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38 call assert_equal(new_columns, &columns)
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39
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40 " Send signal and wait for signal to be processed.
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41 " 'lines' and 'columns' should have been restored
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42 " after handing signal WINCH.
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43 exe 'silent !kill -s WINCH ' .. getpid()
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44 call WaitForAssert({-> assert_equal(old_lines, &lines)})
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45 call assert_equal(old_columns, &columns)
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46
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47 if old_WS != ''
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48 let &t_WS = old_WS
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49 endif
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50 endfunc
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51
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52 " Test signal PWR, which should update the swap file.
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53 func Test_signal_PWR()
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54 if !HasSignal('PWR')
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55 throw 'Skipped: PWR signal not supported'
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56 endif
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57
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58 " Set a very large 'updatetime' and 'updatecount', so that we can be sure
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59 " that swap file is updated as a result of sending PWR signal, and not
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60 " because of exceeding 'updatetime' or 'updatecount' when changing buffer.
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61 set updatetime=100000 updatecount=100000
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62 new Xtest_signal_PWR
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63 let swap_name = swapname('%')
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64 call setline(1, '123')
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65 preserve
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66 let swap_content = readfile(swap_name, 'b')
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67
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68 " Update the buffer and check that the swap file is not yet updated,
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69 " since we set 'updatetime' and 'updatecount' to large values.
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70 call setline(1, 'abc')
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71 call assert_equal(swap_content, readfile(swap_name, 'b'))
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72
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73 " Sending PWR signal should update the swap file.
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74 exe 'silent !kill -s PWR ' .. getpid()
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75 call WaitForAssert({-> assert_notequal(swap_content, readfile(swap_name, 'b'))})
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76
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77 bwipe!
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78 set updatetime& updatecount&
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79 endfunc
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80
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81 " Test signal INT. Handler sets got_int. It should be like typing CTRL-C.
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82 func Test_signal_INT()
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83 CheckRunVimInTerminal
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84 if !HasSignal('INT')
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85 throw 'Skipped: INT signal not supported'
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86 endif
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87
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88 " Skip the rest of the test when running with valgrind as signal INT is not
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89 " received somehow by Vim when running with valgrind.
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90 let cmd = GetVimCommand()
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91 if cmd =~ 'valgrind'
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92 throw 'Skipped: cannot test signal INT with valgrind'
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93 endif
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94
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95 let buf = RunVimInTerminal('', {'rows': 6})
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96 let pid_vim = term_getjob(buf)->job_info().process
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97
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98 " Check that an endless loop in Vim is interrupted by signal INT.
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99 call term_sendkeys(buf, ":while 1 | endwhile\n")
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100 call WaitForAssert({-> assert_equal(':while 1 | endwhile', term_getline(buf, 6))})
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101 exe 'silent !kill -s INT ' .. pid_vim
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102 call term_sendkeys(buf, ":call setline(1, 'INTERUPTED')\n")
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103 call WaitForAssert({-> assert_equal('INTERUPTED', term_getline(buf, 1))})
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104
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105 call StopVimInTerminal(buf)
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106 endfunc
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107
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108 " Test a deadly signal.
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109 "
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110 " There are several deadly signals: SISEGV, SIBUS, SIGTERM...
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111 " Test uses signal SIGTERM as it does not create a core
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112 " dump file unlike SIGSEGV, SIGBUS, etc. See "man 7 signals.
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113 "
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114 " Vim should exit with a deadly signal and unsaved changes
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115 " should be recoverable from the swap file preserved as a
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116 " result of the deadly signal handler.
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117 func Test_deadly_signal_TERM()
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118 if !HasSignal('TERM')
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119 throw 'Skipped: TERM signal not supported'
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120 endif
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121 CheckRunVimInTerminal
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122 let cmd = GetVimCommand()
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123 if cmd =~ 'valgrind'
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124 throw 'Skipped: cannot test signal TERM with valgrind'
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125 endif
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126
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127 " If test fails once, it can leave temporary files and trying to rerun
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128 " the test would then fail again if they are not deleted first.
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129 call delete('.Xsig_TERM.swp')
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130 call delete('XsetupAucmd')
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131 call delete('XautoOut')
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132 let lines =<< trim END
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133 au VimLeave * call writefile(["VimLeave triggered"], "XautoOut", "as")
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134 au VimLeavePre * call writefile(["VimLeavePre triggered"], "XautoOut", "as")
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135 END
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136 call writefile(lines, 'XsetupAucmd')
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137
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138 let buf = RunVimInTerminal('-S XsetupAucmd Xsig_TERM', {'rows': 6})
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139 let pid_vim = term_getjob(buf)->job_info().process
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140
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141 call term_sendkeys(buf, ":call setline(1, 'foo')\n")
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142 call WaitForAssert({-> assert_equal('foo', term_getline(buf, 1))})
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143
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144 call assert_false(filereadable('Xsig_TERM'))
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145 exe 'silent !kill -s TERM ' .. pid_vim
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146 call WaitForAssert({-> assert_true(filereadable('.Xsig_TERM.swp'))})
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147
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148 " Don't call StopVimInTerminal() as it expects job to be still running.
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149 call WaitForAssert({-> assert_equal("finished", term_getstatus(buf))})
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150
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151 new
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152 silent recover .Xsig_TERM.swp
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153 call assert_equal(['foo'], getline(1, '$'))
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154
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155 let result = readfile('XautoOut')
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156 call assert_match('VimLeavePre triggered', result[0])
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157 call assert_match('VimLeave triggered', result[1])
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158
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159 %bwipe!
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160 call delete('.Xsig_TERM.swp')
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161 call delete('XsetupAucmd')
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162 call delete('XautoOut')
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163 endfunc
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164
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165 " vim: ts=8 sw=2 sts=2 tw=80 fdm=marker