vim-patch:8.1.0852: findfile() and finddir() are not properly tested (#9609)

Problem:    findfile() and finddir() are not properly tested.
Solution:   Extend the test and add more. (Dominique Pelle, closes vim/vim#3880)
https://github.com/vim/vim/commit/ed71ed37bcd44bcbfcf59beee1248799de3315ec

1 files changed, 164 insertions, 20 deletions

diff --git a/src/nvim/testdir/test_findfile.vim b/src/nvim/testdir/test_findfile.vim
index d9a89801ea..78e51ed836 100644
--- a/src/nvim/testdir/test_findfile.vim
+++ b/src/nvim/testdir/test_findfile.vim
@@ -1,25 +1,169 @@
-" Test for findfile()
-"
+" Test findfile() and finddir()
+
+let s:files = [ 'Xdir1/foo',
+      \         'Xdir1/bar',
+      \         'Xdir1/Xdir2/foo',
+      \         'Xdir1/Xdir2/foobar',
+      \         'Xdir1/Xdir2/Xdir3/bar',
+      \         'Xdir1/Xdir2/Xdir3/barfoo' ]
+
+func CreateFiles()
+  call mkdir('Xdir1/Xdir2/Xdir3/Xdir2', 'p')
+  for f in s:files
+    call writefile([], f)
+  endfor
+endfunc
+
+func CleanFiles()
+  " Safer to delete each file even if it's more verbose
+  " than doing a recursive delete('Xdir1', 'rf').
+  for f in s:files
+    call delete(f)
+  endfor
+
+  call delete('Xdir1/Xdir2/Xdir3/Xdir2', 'd')
+  call delete('Xdir1/Xdir2/Xdir3', 'd')
+  call delete('Xdir1/Xdir2', 'd')
+  call delete('Xdir1', 'd')
+endfunc
+
+" Test findfile({name} [, {path} [, {count}]])
 func Test_findfile()
-  new
-  let cwd=getcwd()
-  cd ..
+  let save_path = &path
+  let save_shellslash = &shellslash
+  let save_dir = getcwd()
+  set shellslash
+  call CreateFiles()
+  cd Xdir1
+  e Xdir2/foo
+
+  " With ,, in path, findfile() searches in current directory.
+  set path=,,
+  call assert_equal('foo', findfile('foo'))
+  call assert_equal('bar', findfile('bar'))
+  call assert_equal('',    findfile('foobar'))
+
+  " Directories should not be found (finddir() finds them).
+  call assert_equal('', findfile('Xdir2'))
+
+  " With . in 'path', findfile() searches relatively to current file.
+  set path=.
+  call assert_equal('Xdir2/foo',    findfile('foo'))
+  call assert_equal('',             findfile('bar'))
+  call assert_equal('Xdir2/foobar', findfile('foobar'))
+
+  " Empty {path} 2nd argument is the same as no 2nd argument.
+  call assert_equal('Xdir2/foo', findfile('foo', ''))
+  call assert_equal('',          findfile('bar', ''))
+
+  " Test with *
+  call assert_equal('Xdir2/foo',       findfile('foo', '*'))
+  call assert_equal('',                findfile('bar', '*'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', '*/*'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', 'Xdir2/*'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', 'Xdir*/Xdir3'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', '*2/*3'))
+
+  " Test with **
+  call assert_equal('bar',             findfile('bar', '**'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', '**/Xdir3'))
+  call assert_equal('Xdir2/Xdir3/bar', findfile('bar', 'Xdir2/**'))
+
+  call assert_equal('Xdir2/Xdir3/barfoo', findfile('barfoo', '**2'))
+  call assert_equal('',                   findfile('barfoo', '**1'))
+  call assert_equal('Xdir2/foobar',       findfile('foobar', '**1'))
+
+  " Test with {count} 3rd argument.
+  call assert_equal('bar',                      findfile('bar', '**', 0))
+  call assert_equal('bar',                      findfile('bar', '**', 1))
+  call assert_equal('Xdir2/Xdir3/bar',          findfile('bar', '**', 2))
+  call assert_equal('',                         findfile('bar', '**', 3))
+  call assert_equal(['bar', 'Xdir2/Xdir3/bar'], findfile('bar', '**', -1))
+
+  " Test upwards search.
+  cd Xdir2/Xdir3
+  call assert_equal('bar',                findfile('bar', ';'))
+  call assert_match('.*/Xdir1/Xdir2/foo', findfile('foo', ';'))
+  call assert_match('.*/Xdir1/Xdir2/foo', findfile('foo', ';', 1))
+  call assert_match('.*/Xdir1/foo',       findfile('foo', ';', 2))
+  call assert_match('.*/Xdir1/foo',       findfile('foo', ';', 2))
+  call assert_match('.*/Xdir1/Xdir2/foo', findfile('foo', 'Xdir2;', 1))
+  call assert_equal('',                   findfile('foo', 'Xdir2;', 2))
+
+  " List l should have at least 2 values (possibly more if foo file
+  " happens to be found upwards above Xdir1).
+  let l = findfile('foo', ';', -1)
+  call assert_match('.*/Xdir1/Xdir2/foo', l[0])
+  call assert_match('.*/Xdir1/foo',       l[1])
+
+  " Test upwards search with stop-directory.
+  cd Xdir2
+  let l = findfile('bar', ';' . save_dir . '/Xdir1/Xdir2/', -1)
+  call assert_equal(1, len(l))
+  call assert_match('.*/Xdir1/Xdir2/Xdir3/bar', l[0])
+
+  let l = findfile('bar', ';' . save_dir . '/Xdir1/', -1)
+  call assert_equal(2, len(l))
+  call assert_match('.*/Xdir1/Xdir2/Xdir3/bar', l[0])
+  call assert_match('.*/Xdir1/bar',             l[1])
+
+  " Test combined downwards and upwards search from Xdir2/.
+  cd ../..
+  call assert_equal('Xdir3/bar',    findfile('bar', '**;', 1))
+  call assert_match('.*/Xdir1/bar', findfile('bar', '**;', 2))
+
+  bwipe!
+  exe 'cd  ' . save_dir
+  call CleanFiles()
+  let &path = save_path
+  let &shellslash = save_shellslash
+endfunc
+
+" Test finddir({name} [, {path} [, {count}]])
+func Test_finddir()
+  let save_path = &path
+  let save_shellslash = &shellslash
+  let save_dir = getcwd()
+  set path=,,
+  call CreateFiles()
+  cd Xdir1
+
+  call assert_equal('Xdir2', finddir('Xdir2'))
+  call assert_equal('',      finddir('Xdir3'))
+
+  " Files should not be found (findfile() finds them).
+  call assert_equal('', finddir('foo'))
+
+  call assert_equal('Xdir2',       finddir('Xdir2', '**'))
+  call assert_equal('Xdir2/Xdir3', finddir('Xdir3', '**'))
+
+  call assert_equal('Xdir2',               finddir('Xdir2', '**', 1))
+  call assert_equal('Xdir2/Xdir3/Xdir2',   finddir('Xdir2', '**', 2))
+  call assert_equal(['Xdir2',
+        \            'Xdir2/Xdir3/Xdir2'], finddir('Xdir2', '**', -1))
+
+  call assert_equal('Xdir2',       finddir('Xdir2', '**1'))
+  call assert_equal('Xdir2',       finddir('Xdir2', '**0'))
+  call assert_equal('Xdir2/Xdir3', finddir('Xdir3', '**1'))
+  call assert_equal('',            finddir('Xdir3', '**0'))
+
+  " Test upwards dir search.
+  cd Xdir2/Xdir3
+  call assert_match('.*/Xdir1', finddir('Xdir1', ';'))
+
+  " Test upwards search with stop-directory.
+  call assert_match('.*/Xdir1', finddir('Xdir1', ';' . save_dir . '/'))
+  call assert_equal('',         finddir('Xdir1', ';' . save_dir . '/Xdir1/'))
 
-  " Tests may be run from a shadow directory, so an extra cd needs to be done to
-  " get above src/
-  if fnamemodify(getcwd(), ':t') != 'src'
-    cd ../.. 
-  else 
-    cd .. 
-  endif
-  set ssl
-
-  call assert_equal('src/nvim/testdir/test_findfile.vim', findfile('test_findfile.vim','src/nvim/test*'))
-  exe "cd" cwd
+  " Test combined downwards and upwards dir search from Xdir2/.
   cd ..
-  call assert_equal('testdir/test_findfile.vim', findfile('test_findfile.vim','test*'))
-  call assert_equal('testdir/test_findfile.vim', findfile('test_findfile.vim','testdir'))
+  call assert_match('.*/Xdir1',       finddir('Xdir1', '**;', 1))
+  call assert_equal('Xdir3/Xdir2',    finddir('Xdir2', '**;', 1))
+  call assert_match('.*/Xdir1/Xdir2', finddir('Xdir2', '**;', 2))
+  call assert_equal('Xdir3',          finddir('Xdir3', '**;', 1))
 
-  exe "cd" cwd
-  q!
+  exe 'cd  ' . save_dir
+  call CleanFiles()
+  let &path = save_path
+  let &shellslash = save_shellslash
 endfunc