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" Functions shared by tests making screen dumps.
" Only load this script once.
if exists('*CanRunVimInTerminal')
finish
endif
" For most tests we need to be able to run terminal Vim with 256 colors. On
" MS-Windows the console only has 16 colors and the GUI can't run in a
" terminal.
func CanRunVimInTerminal()
return has('terminal') && !has('win32')
endfunc
" Skip the rest if there is no terminal feature at all.
if !has('terminal')
finish
endif
source shared.vim
" Run Vim with "arguments" in a new terminal window.
" By default uses a size of 20 lines and 75 columns.
" Returns the buffer number of the terminal.
"
" Options is a dictionary, these items are recognized:
" "rows" - height of the terminal window (max. 20)
" "cols" - width of the terminal window (max. 78)
func RunVimInTerminal(arguments, options)
" If Vim doesn't exit a swap file remains, causing other tests to fail.
" Remove it here.
call delete(".swp")
if exists('$COLORFGBG')
" Clear $COLORFGBG to avoid 'background' being set to "dark", which will
" only be corrected if the response to t_RB is received, which may be too
" late.
let $COLORFGBG = ''
endif
" Make a horizontal and vertical split, so that we can get exactly the right
" size terminal window. Works only when the current window is full width.
call assert_equal(&columns, winwidth(0))
split
vsplit
" Always do this with 256 colors and a light background.
set t_Co=256 background=light
hi Normal ctermfg=NONE ctermbg=NONE
" Make the window 20 lines high and 75 columns, unless told otherwise.
let rows = get(a:options, 'rows', 20)
let cols = get(a:options, 'cols', 75)
let cmd = GetVimCommandClean()
" Add -v to have gvim run in the terminal (if possible)
let cmd .= ' -v ' . a:arguments
let buf = term_start(cmd, {'curwin': 1, 'term_rows': rows, 'term_cols': cols})
if &termwinsize == ''
" in the GUI we may end up with a different size, try to set it.
if term_getsize(buf) != [rows, cols]
call term_setsize(buf, rows, cols)
endif
call assert_equal([rows, cols], term_getsize(buf))
else
let rows = term_getsize(buf)[0]
let cols = term_getsize(buf)[1]
endif
" Wait for "All" or "Top" of the ruler to be shown in the last line or in
" the status line of the last window. This can be quite slow (e.g. when
" using valgrind).
" If it fails then show the terminal contents for debugging.
try
call WaitFor({-> len(term_getline(buf, rows)) >= cols - 1 || len(term_getline(buf, rows - 1)) >= cols - 1})
catch /timed out after/
let lines = map(range(1, rows), {key, val -> term_getline(buf, val)})
call assert_report('RunVimInTerminal() failed, screen contents: ' . join(lines, "<NL>"))
endtry
return buf
endfunc
" Stop a Vim running in terminal buffer "buf".
func StopVimInTerminal(buf)
call assert_equal("running", term_getstatus(a:buf))
" CTRL-O : works both in Normal mode and Insert mode to start a command line.
" In Command-line it's inserted, the CTRL-U removes it again.
call term_sendkeys(a:buf, "\<C-O>:\<C-U>qa!\<cr>")
call WaitForAssert({-> assert_equal("finished", term_getstatus(a:buf))})
only!
endfunc
" Verify that Vim running in terminal buffer "buf" matches the screen dump.
" "options" is passed to term_dumpwrite().
" The file name used is "dumps/{filename}.dump".
" Optionally an extra argument can be passed which is prepended to the error
" message. Use this when using the same dump file with different options.
" Will wait for up to a second for the screen dump to match.
" Returns non-zero when verification fails.
func VerifyScreenDump(buf, filename, options, ...)
let reference = 'dumps/' . a:filename . '.dump'
let testfile = a:filename . '.dump.failed'
let i = 0
while 1
" leave some time for updating the original window
sleep 10m
call delete(testfile)
call term_dumpwrite(a:buf, testfile, a:options)
if readfile(reference) == readfile(testfile)
call delete(testfile)
break
endif
if i == 100
" Leave the test file around for inspection.
let msg = 'See dump file difference: call term_dumpdiff("' . testfile . '", "' . reference . '")'
if a:0 == 1
let msg = a:1 . ': ' . msg
endif
call assert_report(msg)
return 1
endif
let i += 1
endwhile
return 0
endfunc
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