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vim-patch:9.1.2050: tests: Test_cd_completion may fail

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Problem:  tests: Test_cd_completion() may fail depending on the contents
          of the root directory of the current drive on Windows.
          readdir() may return a directory that cannot "cd" to, causing
          this test to fail. An example of such a directory is
          "System Volume Information" which only admin can "cd" to.
Solution: When determining the directory to use for testing, use the
          directory that we actually "cd" to successfully.
          In addition, directories with '$' in their names are also
          excluded, as they are considered environment variables during
          completion and do not work as expected.
          Example: "$RECYCLE.BIN" (Muraoka Taro).

closes: vim/vim#19078

6625ba359e

Co-authored-by: Muraoka Taro <koron.kaoriya@gmail.com>
This commit is contained in:
zeertzjq
2026-01-04 18:50:50 +08:00
parent 3e57c5216f
commit 6c3502d85a
1 changed files with 31 additions and 4 deletions
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35
test/old/testdir/test_cd.vim
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@@ -227,15 +227,42 @@ func Test_cd_completion()
if has('win32')
" Test Windows absolute path completion
let saved_cwd = getcwd()
" Retrieve a suitable dir in the current drive
let dir = readdir('/', 'isdirectory("/" .. v:val) && len(v:val) > 2')[-1]
for d in readdir('/', 'isdirectory("/" .. v:val) && len(v:val) > 2')
" Paths containing '$' such as "$RECYCLE.BIN" are skipped because
" they are considered environment variables and completion does not
" work.
if d =~ '\V$'
continue
endif
" Skip directories that we don't have permission to "cd" into by
" actually "cd"ing into them and making sure they don't fail.
" Directory "System Volume Information" is an example of this.
try
call chdir('/' .. d)
let dir = d
" Yay! We found a suitable dir!
break
catch /:E472:/
" Just skip directories where "cd" fails
continue
finally
call chdir(saved_cwd)
endtry
endfor
if !exists('dir')
throw 'Skipped: no testable directories found in the current drive root'
endif
" Get partial path
let partial = dir[0:-2]
" Get the current drive letter
let old = chdir('/' . dir)
" Get the current drive letter and full path of the target dir
call chdir('/' .. dir)
let full = getcwd()
let drive = full[0]
call chdir(old)
call chdir(saved_cwd)
for cmd in ['cd', 'chdir', 'lcd', 'lchdir', 'tcd', 'tchdir']
for sep in [ '/', '\']