patch 9.0.0769: too many delete() calls in testsv9.0.0769

Problem:    Too many delete() calls in tests.
Solution:   Use deferred delete where possible.

6 files changed, 31 insertions, 58 deletions

diff --git a/src/testdir/test_winbar.vim b/src/testdir/test_winbar.vim
index 7972bc3b6..b946bcd1a 100644
--- a/src/testdir/test_winbar.vim
+++ b/src/testdir/test_winbar.vim
@@ -132,13 +132,12 @@ func Test_winbar_not_visible()
       wincmd j
       wincmd _
   END
-  call writefile(lines, 'XtestWinbarNotVisble')
+  call writefile(lines, 'XtestWinbarNotVisble', 'D')
   let buf = RunVimInTerminal('-S XtestWinbarNotVisble', #{rows: 10})
   call VerifyScreenDump(buf, 'Test_winbar_not_visible', {})
 
   " clean up
   call StopVimInTerminal(buf)
-  call delete('XtestWinbarNotVisble')
 endfunction
 
 func Test_winbar_not_visible_custom_statusline()
@@ -152,13 +151,12 @@ func Test_winbar_not_visible_custom_statusline()
       wincmd j
       wincmd _
   END
-  call writefile(lines, 'XtestWinbarNotVisble')
+  call writefile(lines, 'XtestWinbarNotVisble', 'D')
   let buf = RunVimInTerminal('-S XtestWinbarNotVisble', #{rows: 10})
   call VerifyScreenDump(buf, 'Test_winbar_not_visible_custom_statusline', {})
 
   " clean up
   call StopVimInTerminal(buf)
-  call delete('XtestWinbarNotVisble')
 endfunction
 
 func Test_drag_statusline_with_winbar()
diff --git a/src/testdir/test_winbuf_close.vim b/src/testdir/test_winbuf_close.vim
index 2530be063..17e31e49d 100644
--- a/src/testdir/test_winbuf_close.vim
+++ b/src/testdir/test_winbuf_close.vim
@@ -12,9 +12,9 @@
 func Test_winbuf_close()
   enew | only
 
-  call writefile(['testtext 1'], 'Xtest1')
-  call writefile(['testtext 2'], 'Xtest2')
-  call writefile(['testtext 3'], 'Xtest3')
+  call writefile(['testtext 1'], 'Xtest1', 'D')
+  call writefile(['testtext 2'], 'Xtest2', 'D')
+  call writefile(['testtext 3'], 'Xtest3', 'D')
 
   next! Xtest1 Xtest2
   call setline(1, 'testtext 1 1')
@@ -117,10 +117,6 @@ func Test_winbuf_close()
   call assert_equal('Xtest3', bufname('%'))
   call assert_fails('silent! quit!', 'E37:')
   call assert_equal('Xtest1', bufname('%'))
-
-  call delete('Xtest1')
-  call delete('Xtest2')
-  call delete('Xtest3')
 endfunc
 
 " Test that ":close" will respect 'winfixheight' when possible.
diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
index 61daa8d5c..6368889df 100644
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -69,8 +69,8 @@ endfunc
 func Test_window_cmd_wincmd_gf()
   let fname = 'test_gf.txt'
   let swp_fname = '.' . fname . '.swp'
-  call writefile([], fname)
-  call writefile([], swp_fname)
+  call writefile([], fname, 'D')
+  call writefile([], swp_fname, 'D')
   function s:swap_exists()
     let v:swapchoice = s:swap_choice
   endfunc
@@ -96,8 +96,6 @@ func Test_window_cmd_wincmd_gf()
   call assert_notequal(fname, bufname("%"))
   new | only!
 
-  call delete(fname)
-  call delete(swp_fname)
   augroup! test_window_cmd_wincmd_gf
 endfunc
 
@@ -740,7 +738,7 @@ func Test_window_prevwin()
   CheckUnix
 
   set hidden autoread
-  call writefile(['2'], 'tmp.txt')
+  call writefile(['2'], 'tmp.txt', 'D')
   new tmp.txt
   q
   call Fun_RenewFile()
@@ -756,7 +754,6 @@ func Test_window_prevwin()
   wincmd p
   " reset
   q
-  call delete('tmp.txt')
   set hidden&vim autoread&vim
   delfunc Fun_RenewFile
 endfunc
@@ -1082,9 +1079,9 @@ func Run_noroom_for_newwindow_test(dir_arg)
     endtry
   endwhile
 
-  call writefile(['first', 'second', 'third'], 'Xnorfile1')
-  call writefile([], 'Xnorfile2')
-  call writefile([], 'Xnorfile3')
+  call writefile(['first', 'second', 'third'], 'Xnorfile1', 'D')
+  call writefile([], 'Xnorfile2', 'D')
+  call writefile([], 'Xnorfile3', 'D')
 
   " Argument list related commands
   args Xnorfile1 Xnorfile2 Xnorfile3
@@ -1165,9 +1162,6 @@ func Run_noroom_for_newwindow_test(dir_arg)
   endif
 
   %bwipe!
-  call delete('Xnorfile1')
-  call delete('Xnorfile2')
-  call delete('Xnorfile3')
   only
 endfunc
 
diff --git a/src/testdir/test_writefile.vim b/src/testdir/test_writefile.vim
index fd6b02d93..140b2ee03 100644
--- a/src/testdir/test_writefile.vim
+++ b/src/testdir/test_writefile.vim
@@ -5,8 +5,8 @@ source term_util.vim
 
 func Test_writefile()
   let f = tempname()
-  call writefile(["over","written"], f, "b")
-  call writefile(["hello","world"], f, "b")
+  call writefile(["over", "written"], f, "bD")
+  call writefile(["hello", "world"], f, "b")
   call writefile(["!", "good"], f, "a")
   call writefile(["morning"], f, "ab")
   call writefile(["", "vimmers"], f, "ab")
@@ -16,7 +16,6 @@ func Test_writefile()
   call assert_equal("good", l[2])
   call assert_equal("morning", l[3])
   call assert_equal("vimmers", l[4])
-  call delete(f)
 
   call assert_fails('call writefile("text", "Xwffile")', 'E475: Invalid argument: writefile() first argument must be a List or a Blob')
 endfunc
@@ -52,7 +51,7 @@ func Test_writefile_fails_conversion()
   set nobackup nowritebackup backupdir=. backupskip=
   new
   let contents = ["line one", "line two"]
-  call writefile(contents, 'Xwfcfile')
+  call writefile(contents, 'Xwfcfile', 'D')
   edit Xwfcfile
   call setline(1, ["first line", "cannot convert \u010b", "third line"])
   call assert_fails('write ++enc=cp932', 'E513:')
@@ -79,7 +78,6 @@ func Test_writefile_fails_conversion()
   call delete('Xwfcfily~')
   %bw!
 
-  call delete('Xwfcfile')
   call delete('Xwfcfile' .. &backupext)
   bwipe!
   set backup& writebackup& backupdir&vim backupskip&vim
@@ -94,7 +92,7 @@ func Test_writefile_fails_conversion2()
   " but then the backup file must remain
   set nobackup writebackup backupdir=. backupskip=
   let contents = ["line one", "line two"]
-  call writefile(contents, 'Xwf2file_conversion_err')
+  call writefile(contents, 'Xwf2file_conversion_err', 'D')
   edit Xwf2file_conversion_err
   call setline(1, ["first line", "cannot convert \u010b", "third line"])
   set fileencoding=latin1
@@ -102,7 +100,6 @@ func Test_writefile_fails_conversion2()
   call assert_match('CONVERSION ERROR', output)
   call assert_equal(contents, readfile('Xwf2file_conversion_err~'))
 
-  call delete('Xwf2file_conversion_err')
   call delete('Xwf2file_conversion_err~')
   bwipe!
   set backup& writebackup& backupdir&vim backupskip&vim
@@ -154,9 +151,8 @@ endfunc
 
 func Test_writefile_sync_arg()
   " This doesn't check if fsync() works, only that the argument is accepted.
-  call writefile(['one'], 'Xtest', 's')
+  call writefile(['one'], 'Xtest', 'sD')
   call writefile(['two'], 'Xtest', 'S')
-  call delete('Xtest')
 endfunc
 
 func Test_writefile_sync_dev_stdout()
@@ -311,7 +307,7 @@ func Test_write_file_mtime()
   CheckRunVimInTerminal
 
   " First read the file into a buffer
-  call writefile(["Line1", "Line2"], 'Xwfmfile')
+  call writefile(["Line1", "Line2"], 'Xwfmfile', 'D')
   let old_ftime = getftime('Xwfmfile')
   let buf = RunVimInTerminal('Xwfmfile', #{rows : 10})
   call TermWait(buf)
@@ -347,7 +343,6 @@ func Test_write_file_mtime()
 
   " clean up
   call StopVimInTerminal(buf)
-  call delete('Xwfmfile')
 endfunc
 
 " Test for an autocmd unloading a buffer during a write command
@@ -417,7 +412,7 @@ endfunc
 
 " Test for writing to a readonly file
 func Test_write_readonly()
-  call writefile([], 'Xwrofile')
+  call writefile([], 'Xwrofile', 'D')
   call setfperm('Xwrofile', "r--------")
   edit Xwrofile
   set noreadonly backupskip=
@@ -442,13 +437,12 @@ func Test_write_readonly()
   set autowriteall&
 
   set backupskip&
-  call delete('Xwrofile')
   %bw!
 endfunc
 
 " Test for 'patchmode'
 func Test_patchmode()
-  call writefile(['one'], 'Xpafile')
+  call writefile(['one'], 'Xpafile', 'D')
   set patchmode=.orig nobackup backupskip= writebackup
   new Xpafile
   call setline(1, 'two')
@@ -473,7 +467,6 @@ func Test_patchmode()
   call assert_equal([], readfile('Xpafile.orig'))
 
   set patchmode& backup& backupskip& writebackup&
-  call delete('Xpafile')
   call delete('Xpafile.orig')
 endfunc
 
@@ -485,7 +478,7 @@ func Test_write_readonly_dir()
   " Root can do it too.
   CheckNotRoot
 
-  call mkdir('Xrodir/')
+  call mkdir('Xrodir/', 'R')
   call writefile(['one'], 'Xrodir/Xfile1')
   call setfperm('Xrodir', 'r-xr--r--')
   " try to create a new file in the directory
@@ -498,7 +491,6 @@ func Test_write_readonly_dir()
   set patchmode=.orig
   call assert_fails('write', 'E509:')
   call setfperm('Xrodir', 'rwxr--r--')
-  call delete('Xrodir', 'rf')
   set backupdir& backupskip& patchmode&
 endfunc
 
@@ -521,7 +513,7 @@ func Test_write_file_encoding()
     2 cp1251 text: ─ы  Vim version 6.2.  ╧юёыхфэхх шчьхэхэшх: 1970 Jan 01
     3 cp866 text: Для Vim version 6.2.  Последнее изменение: 1970 Jan 01
   END
-  call writefile(text, 'Xwfefile')
+  call writefile(text, 'Xwfefile', 'D')
   edit Xwfefile
 
   " write tests:
@@ -614,7 +606,6 @@ func Test_write_file_encoding()
   END
   call assert_equal(expected, readfile('Xwfetest'))
 
-  call delete('Xwfefile')
   call delete('Xwfetest')
   call delete('Xutf8')
   call delete('Xcp1251')
@@ -641,7 +632,7 @@ func Test_readwrite_file_with_bom()
   set cpoptions+=S
 
   " Check that editing a latin1 file doesn't see a BOM
-  call writefile(["\xFE\xFElatin-1"], 'Xrwtest1')
+  call writefile(["\xFE\xFElatin-1"], 'Xrwtest1', 'D')
   edit Xrwtest1
   call assert_equal('latin1', &fileencoding)
   call assert_equal(0, &bomb)
@@ -746,7 +737,6 @@ func Test_readwrite_file_with_bom()
 
   set cpoptions-=S
   let &fileencoding = save_fileencoding
-  call delete('Xrwtest1')
   call delete('Xrwfile2')
   call delete('Xrwtest3')
   %bw!
@@ -754,7 +744,7 @@ endfunc
 
 func Test_read_write_bin()
   " write file missing EOL
-  call writefile(['noeol'], "XNoEolSetEol", 'bS')
+  call writefile(['noeol'], "XNoEolSetEol", 'bSD')
   call assert_equal(0z6E6F656F6C, readfile('XNoEolSetEol', 'B'))
 
   " when file is read 'eol' is off
@@ -767,7 +757,6 @@ func Test_read_write_bin()
   w
   call assert_equal(0z6E6F656F6C0A, readfile('XNoEolSetEol', 'B'))
 
-  call delete('XNoEolSetEol')
   set ff& fixeol&
   bwipe! XNoEolSetEol
 endfunc
@@ -899,7 +888,7 @@ func Test_write_backup_symlink()
   call mkdir('Xbackup')
   let save_backupdir = &backupdir
   set backupdir=.,./Xbackup
-  call writefile(['1111'], 'Xwbsfile')
+  call writefile(['1111'], 'Xwbsfile', 'D')
   silent !ln -s Xwbsfile Xwbsfile.bak
 
   new Xwbsfile
@@ -915,7 +904,6 @@ func Test_write_backup_symlink()
   set backup& backupcopy& backupext&
   %bw
 
-  call delete('Xwbsfile')
   call delete('Xwbsfile.bak')
   call delete('Xbackup', 'rf')
   let &backupdir = save_backupdir
@@ -924,7 +912,7 @@ endfunc
 " Test for ':write ++bin' and ':write ++nobin'
 func Test_write_binary_file()
   " create a file without an eol/eof character
-  call writefile(0z616161, 'Xwbfile1', 'b')
+  call writefile(0z616161, 'Xwbfile1', 'bD')
   new Xwbfile1
   write ++bin Xwbfile2
   write ++nobin Xwbfile3
@@ -934,7 +922,6 @@ func Test_write_binary_file()
   else
     call assert_equal(0z6161610A, readblob('Xwbfile3'))
   endif
-  call delete('Xwbfile1')
   call delete('Xwbfile2')
   call delete('Xwbfile3')
 endfunc
diff --git a/src/testdir/test_xxd.vim b/src/testdir/test_xxd.vim
index b27639d3f..b79d52a51 100644
--- a/src/testdir/test_xxd.vim
+++ b/src/testdir/test_xxd.vim
@@ -274,8 +274,8 @@ endfunc
 func Test_xxd_patch()
   let cmd1 = 'silent !' .. s:xxd_cmd .. ' -r Xxxdin Xxxdfile'
   let cmd2 = 'silent !' .. s:xxd_cmd .. ' -g1 Xxxdfile > Xxxdout'
-  call writefile(["2: 41 41", "8: 42 42"], 'Xxxdin')
-  call writefile(['::::::::'], 'Xxxdfile')
+  call writefile(["2: 41 41", "8: 42 42"], 'Xxxdin', 'D')
+  call writefile(['::::::::'], 'Xxxdfile', 'D')
   exe cmd1
   exe cmd2
   call assert_equal(['00000000: 3a 3a 41 41 3a 3a 3a 3a 42 42                    ::AA::::BB'], readfile('Xxxdout'))
@@ -306,8 +306,6 @@ func Test_xxd_patch()
   exe cmd2
   call assert_equal(['00000000: 3a 3a 45 45 3a 3a 3a 3a 42 44 46 46              ::EE::::BDFF'], readfile('Xxxdout'))
   
-  call delete('Xxxdin')
-  call delete('Xxxdfile')
   call delete('Xxxdout')
 endfunc
 
@@ -369,7 +367,7 @@ endfunc
 " -c0 selects the format specific default column value, as if no -c was given
 " except for -ps, where it disables extra newlines
 func Test_xxd_c0_is_def_cols()
-  call writefile(["abcdefghijklmnopqrstuvwxyz0123456789"], 'Xxdin')
+  call writefile(["abcdefghijklmnopqrstuvwxyz0123456789"], 'Xxdin', 'D')
   for cols in ['-c0', '-c 0', '-cols 0']
     for fmt in ['', '-b', '-e', '-i']
       exe 'r! ' . s:xxd_cmd . ' ' . fmt ' Xxdin > Xxdout1'
@@ -377,7 +375,6 @@ func Test_xxd_c0_is_def_cols()
       call assert_equalfile('Xxdout1', 'Xxdout2')
     endfor
   endfor
-  call delete('Xxdin')
   call delete('Xxdout1')
   call delete('Xxdout2')
 endfunc
@@ -391,7 +388,7 @@ func Test_xxd_plain_one_line()
         \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
         \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
         \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"],
-        \ 'Xxdin')
+        \ 'Xxdin', 'D')
   for cols in ['-c0', '-c 0', '-cols 0']
     exe 'r! ' . s:xxd_cmd . ' -ps ' . cols ' Xxdin'
     " output seems to start in line 2
@@ -402,7 +399,6 @@ func Test_xxd_plain_one_line()
     " xxd output must be non-empty and comprise only lower case hex digits
     call assert_match("^[0-9a-f][0-9a-f]*$", out)
   endfor
-  call delete('Xxdin')
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 10ddefc4b..73b397caa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    769,
+/**/
     768,
 /**/
     767,