| Bram Moolenaar | 321efdd | 2016-07-15 17:09:11 +0200 | [diff] [blame] | 1 | " Functions shared by several tests. |
| 2 | |
| 3 | " Get the name of the Python executable. |
| 4 | " Also keeps it in s:python. |
| 5 | func PythonProg() |
| 6 | " This test requires the Python command to run the test server. |
| 7 | " This most likely only works on Unix and Windows. |
| 8 | if has('unix') |
| 9 | " We also need the job feature or the pkill command to make sure the server |
| 10 | " can be stopped. |
| 11 | if !(executable('python') && (has('job') || executable('pkill'))) |
| 12 | return '' |
| 13 | endif |
| 14 | let s:python = 'python' |
| 15 | elseif has('win32') |
| 16 | " Use Python Launcher for Windows (py.exe) if available. |
| 17 | if executable('py.exe') |
| 18 | let s:python = 'py.exe' |
| 19 | elseif executable('python.exe') |
| 20 | let s:python = 'python.exe' |
| 21 | else |
| 22 | return '' |
| 23 | endif |
| 24 | else |
| 25 | return '' |
| 26 | endif |
| 27 | return s:python |
| 28 | endfunc |
| 29 | |
| 30 | " Run "cmd". Returns the job if using a job. |
| 31 | func RunCommand(cmd) |
| 32 | let job = 0 |
| 33 | if has('job') |
| 34 | let job = job_start(a:cmd, {"stoponexit": "hup"}) |
| 35 | call job_setoptions(job, {"stoponexit": "kill"}) |
| 36 | elseif has('win32') |
| 37 | exe 'silent !start cmd /c start "test_channel" ' . a:cmd |
| 38 | else |
| 39 | exe 'silent !' . a:cmd . '&' |
| 40 | endif |
| 41 | return job |
| 42 | endfunc |
| 43 | |
| 44 | " Read the port number from the Xportnr file. |
| 45 | func GetPort() |
| 46 | let l = [] |
| 47 | for i in range(200) |
| 48 | try |
| 49 | let l = readfile("Xportnr") |
| 50 | catch |
| 51 | endtry |
| 52 | if len(l) >= 1 |
| 53 | break |
| 54 | endif |
| 55 | sleep 10m |
| 56 | endfor |
| 57 | call delete("Xportnr") |
| 58 | |
| 59 | if len(l) == 0 |
| 60 | " Can't make the connection, give up. |
| 61 | return 0 |
| 62 | endif |
| 63 | return l[0] |
| 64 | endfunc |
| 65 | |
| 66 | " Run a Python server for "cmd" and call "testfunc". |
| 67 | " Always kills the server before returning. |
| 68 | func RunServer(cmd, testfunc, args) |
| 69 | " The Python program writes the port number in Xportnr. |
| 70 | call delete("Xportnr") |
| 71 | |
| 72 | if len(a:args) == 1 |
| 73 | let arg = ' ' . a:args[0] |
| 74 | else |
| 75 | let arg = '' |
| 76 | endif |
| 77 | let pycmd = s:python . " " . a:cmd . arg |
| 78 | |
| 79 | try |
| 80 | let g:currentJob = RunCommand(pycmd) |
| 81 | |
| 82 | " Wait for up to 2 seconds for the port number to be there. |
| 83 | let port = GetPort() |
| 84 | if port == 0 |
| 85 | call assert_false(1, "Can't start " . a:cmd) |
| 86 | return |
| 87 | endif |
| 88 | |
| 89 | call call(function(a:testfunc), [port]) |
| 90 | catch |
| 91 | call assert_false(1, "Caught exception: " . v:exception) |
| 92 | finally |
| 93 | call s:kill_server(a:cmd) |
| 94 | endtry |
| 95 | endfunc |
| 96 | |
| 97 | func s:kill_server(cmd) |
| 98 | if has('job') |
| 99 | if exists('g:currentJob') |
| 100 | call job_stop(g:currentJob) |
| 101 | unlet g:currentJob |
| 102 | endif |
| 103 | elseif has('win32') |
| 104 | let cmd = substitute(a:cmd, ".py", '', '') |
| 105 | call system('taskkill /IM ' . s:python . ' /T /F /FI "WINDOWTITLE eq ' . cmd . '"') |
| 106 | else |
| 107 | call system("pkill -f " . a:cmd) |
| 108 | endif |
| 109 | endfunc |
| 110 | |
| 111 | " Wait for up to a second for "expr" to become true. |
| 112 | func WaitFor(expr) |
| 113 | for i in range(100) |
| 114 | try |
| 115 | if eval(a:expr) |
| 116 | return |
| 117 | endif |
| 118 | catch |
| 119 | endtry |
| 120 | sleep 10m |
| 121 | endfor |
| 122 | endfunc |