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annotate src/testdir/term_util.vim @ 18412:6208e5c2eee7 v8.1.2200

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patch 8.1.2200: crash when memory allocation fails Commit: https://github.com/vim/vim/commit/1cac70953d3c012453ea85b1308a8b1f94359c26 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Oct 22 21:54:31 2019 +0200 patch 8.1.2200: crash when memory allocation fails Problem: Crash when memory allocation fails. Solution: Check for NULL curwin and curbuf. (Christian Brabandt, closes #4839)
author Bram Moolenaar <Bram@vim.org>
date Tue, 22 Oct 2019 22:00:05 +0200
parents 4ac8161e92e0
children c3f506e24eab
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1 " Functions about terminal shared by several tests
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2
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3 " Only load this script once.
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4 if exists('*CanRunVimInTerminal')
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5 finish
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6 endif
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7
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8 " For most tests we need to be able to run terminal Vim with 256 colors. On
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9 " MS-Windows the console only has 16 colors and the GUI can't run in a
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10 " terminal.
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11 func CanRunVimInTerminal()
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12 return has('terminal') && !has('win32')
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13 endfunc
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14
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15 " Skip the rest if there is no terminal feature at all.
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16 if !has('terminal')
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17 finish
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18 endif
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19
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20 " Stops the shell running in terminal "buf".
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21 func StopShellInTerminal(buf)
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22 call term_sendkeys(a:buf, "exit\r")
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23 let job = term_getjob(a:buf)
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24 call WaitFor({-> job_status(job) == "dead"})
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25 endfunc
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26
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27 " Run Vim with "arguments" in a new terminal window.
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28 " By default uses a size of 20 lines and 75 columns.
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29 " Returns the buffer number of the terminal.
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30 "
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31 " Options is a dictionary, these items are recognized:
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32 " "rows" - height of the terminal window (max. 20)
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33 " "cols" - width of the terminal window (max. 78)
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34 " "statusoff" - number of lines the status is offset from default
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35 func RunVimInTerminal(arguments, options)
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36 " If Vim doesn't exit a swap file remains, causing other tests to fail.
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37 " Remove it here.
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38 call delete(".swp")
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39
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40 if exists('$COLORFGBG')
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41 " Clear $COLORFGBG to avoid 'background' being set to "dark", which will
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42 " only be corrected if the response to t_RB is received, which may be too
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43 " late.
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44 let $COLORFGBG = ''
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45 endif
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46
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47 " Make a horizontal and vertical split, so that we can get exactly the right
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48 " size terminal window. Works only when the current window is full width.
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49 call assert_equal(&columns, winwidth(0))
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50 split
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51 vsplit
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52
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53 " Always do this with 256 colors and a light background.
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54 set t_Co=256 background=light
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55 hi Normal ctermfg=NONE ctermbg=NONE
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56
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57 " Make the window 20 lines high and 75 columns, unless told otherwise.
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58 let rows = get(a:options, 'rows', 20)
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59 let cols = get(a:options, 'cols', 75)
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60 let statusoff = get(a:options, 'statusoff', 1)
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61
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62 let cmd = GetVimCommandCleanTerm() .. a:arguments
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63
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64 let options = {
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65 \ 'curwin': 1,
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66 \ 'term_rows': rows,
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67 \ 'term_cols': cols,
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68 \ }
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69 " Accept other options whose name starts with 'term_'.
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70 call extend(options, filter(copy(a:options), 'v:key =~# "^term_"'))
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71
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72 let buf = term_start(cmd, options)
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73
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74 if &termwinsize == ''
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75 " in the GUI we may end up with a different size, try to set it.
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76 if term_getsize(buf) != [rows, cols]
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77 call term_setsize(buf, rows, cols)
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78 endif
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79 call assert_equal([rows, cols], term_getsize(buf))
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80 else
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81 let rows = term_getsize(buf)[0]
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82 let cols = term_getsize(buf)[1]
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83 endif
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84
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85 " Wait for "All" or "Top" of the ruler to be shown in the last line or in
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86 " the status line of the last window. This can be quite slow (e.g. when
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87 " using valgrind).
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88 " If it fails then show the terminal contents for debugging.
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89 try
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90 call WaitFor({-> len(term_getline(buf, rows)) >= cols - 1 || len(term_getline(buf, rows - statusoff)) >= cols - 1})
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91 catch /timed out after/
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92 let lines = map(range(1, rows), {key, val -> term_getline(buf, val)})
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93 call assert_report('RunVimInTerminal() failed, screen contents: ' . join(lines, "<NL>"))
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94 endtry
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95
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96 return buf
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97 endfunc
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98
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99 " Stop a Vim running in terminal buffer "buf".
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100 func StopVimInTerminal(buf)
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101 call assert_equal("running", term_getstatus(a:buf))
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102
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103 " CTRL-O : works both in Normal mode and Insert mode to start a command line.
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104 " In Command-line it's inserted, the CTRL-U removes it again.
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105 call term_sendkeys(a:buf, "\<C-O>:\<C-U>qa!\<cr>")
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106
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107 call WaitForAssert({-> assert_equal("finished", term_getstatus(a:buf))})
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108 only!
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109 endfunc