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