test(old): add more missing test files and run more tests alone

Copy four files from Vim v8.2.1432.
Try to match Vim's test_alot.vim.
This marks Vim patch 8.2.0164 as ported:

vim-patch:8.2.0164: test_alot takes too long

Problem:    Test_alot takes too long.
Solution:   Run several tests individually.
https://github.com/vim/vim/commit/842931cd7af37ea95e826b7a93a5d5587d18c9bb

10 files changed, 212 insertions, 182 deletions

diff --git a/src/nvim/testdir/test_alot.vim b/src/nvim/testdir/test_alot.vim
index 5a3d1d56bb..bb744f7b41 100644
--- a/src/nvim/testdir/test_alot.vim
+++ b/src/nvim/testdir/test_alot.vim
@@ -3,56 +3,33 @@
 
 source test_backup.vim
 source test_behave.vim
-source test_cd.vim
-source test_changedtick.vim
 source test_compiler.vim
-source test_cursor_func.vim
-source test_cursorline.vim
 source test_ex_equal.vim
 source test_ex_undo.vim
 source test_ex_z.vim
 source test_ex_mode.vim
-source test_execute_func.vim
+source test_expand.vim
 source test_expand_func.vim
 source test_feedkeys.vim
-source test_filter_cmd.vim
-source test_filter_map.vim
-source test_findfile.vim
-source test_float_func.vim
-source test_functions.vim
+source test_file_perm.vim
+source test_fnamemodify.vim
 source test_ga.vim
+source test_glob2regpat.vim
 source test_global.vim
-source test_goto.vim
-source test_join.vim
 source test_jumps.vim
-source test_fileformat.vim
-source test_filetype.vim
-source test_filetype_lua.vim
-source test_lambda.vim
+source test_lispwords.vim
 source test_menu.vim
-source test_messages.vim
-source test_modeline.vim
 source test_move.vim
-source test_partial.vim
-source test_popup.vim
 source test_put.vim
-source test_rename.vim
+source test_reltime.vim
 source test_scroll_opt.vim
+source test_searchpos.vim
+source test_set.vim
 source test_shift.vim
-" Test fails on windows CI when using the MSVC compiler.
-" source test_sort.vim
 source test_sha256.vim
-source test_suspend.vim
-source test_syn_attr.vim
 source test_tabline.vim
-source test_tabpage.vim
 source test_tagcase.vim
 source test_tagfunc.vim
-source test_tagjump.vim
-source test_taglist.vim
-source test_true_false.vim
 source test_unlet.vim
 source test_version.vim
-source test_virtualedit.vim
-source test_window_cmd.vim
 source test_wnext.vim
diff --git a/src/nvim/testdir/test_delete.vim b/src/nvim/testdir/test_delete.vim
new file mode 100644
index 0000000000..b23a3bd025
--- /dev/null
+++ b/src/nvim/testdir/test_delete.vim
@@ -0,0 +1,114 @@
+" Test for delete().
+
+func Test_file_delete()
+  split Xfile
+  call setline(1, ['a', 'b'])
+  wq
+  call assert_equal(['a', 'b'], readfile('Xfile'))
+  call assert_equal(0, delete('Xfile'))
+  call assert_fails('call readfile("Xfile")', 'E484:')
+  call assert_equal(-1, delete('Xfile'))
+  bwipe Xfile
+endfunc
+
+func Test_dir_delete()
+  call mkdir('Xdir1')
+  call assert_true(isdirectory('Xdir1'))
+  call assert_equal(0, delete('Xdir1', 'd'))
+  call assert_false(isdirectory('Xdir1'))
+  call assert_equal(-1, delete('Xdir1', 'd'))
+endfunc
+
+func Test_recursive_delete()
+  call mkdir('Xdir1')
+  call mkdir('Xdir1/subdir')
+  call mkdir('Xdir1/empty')
+  split Xdir1/Xfile
+  call setline(1, ['a', 'b'])
+  w
+  w Xdir1/subdir/Xfile
+  close
+  call assert_true(isdirectory('Xdir1'))
+  call assert_equal(['a', 'b'], readfile('Xdir1/Xfile'))
+  call assert_true(isdirectory('Xdir1/subdir'))
+  call assert_equal(['a', 'b'], readfile('Xdir1/subdir/Xfile'))
+  call assert_true('Xdir1/empty'->isdirectory())
+  call assert_equal(0, delete('Xdir1', 'rf'))
+  call assert_false(isdirectory('Xdir1'))
+  call assert_equal(-1, delete('Xdir1', 'd'))
+  bwipe Xdir1/Xfile
+  bwipe Xdir1/subdir/Xfile
+endfunc
+
+func Test_symlink_delete()
+  if !has('unix')
+    return
+  endif
+  split Xfile
+  call setline(1, ['a', 'b'])
+  wq
+  silent !ln -s Xfile Xlink
+  " Delete the link, not the file
+  call assert_equal(0, delete('Xlink'))
+  call assert_equal(-1, delete('Xlink'))
+  call assert_equal(0, delete('Xfile'))
+  bwipe Xfile
+endfunc
+
+func Test_symlink_dir_delete()
+  if !has('unix')
+    return
+  endif
+  call mkdir('Xdir1')
+  silent !ln -s Xdir1 Xlink
+  call assert_true(isdirectory('Xdir1'))
+  call assert_true(isdirectory('Xlink'))
+  " Delete the link, not the directory
+  call assert_equal(0, delete('Xlink'))
+  call assert_equal(-1, delete('Xlink'))
+  call assert_equal(0, delete('Xdir1', 'd'))
+endfunc
+
+func Test_symlink_recursive_delete()
+  if !has('unix')
+    return
+  endif
+  call mkdir('Xdir3')
+  call mkdir('Xdir3/subdir')
+  call mkdir('Xdir4')
+  split Xdir3/Xfile
+  call setline(1, ['a', 'b'])
+  w
+  w Xdir3/subdir/Xfile
+  w Xdir4/Xfile
+  close
+  silent !ln -s ../Xdir4 Xdir3/Xlink
+
+  call assert_true(isdirectory('Xdir3'))
+  call assert_equal(['a', 'b'], readfile('Xdir3/Xfile'))
+  call assert_true(isdirectory('Xdir3/subdir'))
+  call assert_equal(['a', 'b'], readfile('Xdir3/subdir/Xfile'))
+  call assert_true(isdirectory('Xdir4'))
+  call assert_true(isdirectory('Xdir3/Xlink'))
+  call assert_equal(['a', 'b'], readfile('Xdir4/Xfile'))
+
+  call assert_equal(0, delete('Xdir3', 'rf'))
+  call assert_false(isdirectory('Xdir3'))
+  call assert_equal(-1, delete('Xdir3', 'd'))
+  " symlink is deleted, not the directory it points to
+  call assert_true(isdirectory('Xdir4'))
+  call assert_equal(['a', 'b'], readfile('Xdir4/Xfile'))
+  call assert_equal(0, delete('Xdir4/Xfile'))
+  call assert_equal(0, delete('Xdir4', 'd'))
+
+  bwipe Xdir3/Xfile
+  bwipe Xdir3/subdir/Xfile
+  bwipe Xdir4/Xfile
+endfunc
+
+func Test_delete_errors()
+  call assert_fails('call delete('''')', 'E474:')
+  call assert_fails('call delete(''foo'', 0)', 'E15:')
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/nvim/testdir/test_file_perm.vim b/src/nvim/testdir/test_file_perm.vim
new file mode 100644
index 0000000000..1cb09e8647
--- /dev/null
+++ b/src/nvim/testdir/test_file_perm.vim
@@ -0,0 +1,30 @@
+" Test getting and setting file permissions.
+
+func Test_file_perm()
+  call assert_equal('', getfperm('Xtest'))
+  call assert_equal(0, 'Xtest'->setfperm('r--------'))
+
+  call writefile(['one'], 'Xtest')
+  call assert_true(len('Xtest'->getfperm()) == 9)
+
+  call assert_equal(1, setfperm('Xtest', 'rwx------'))
+  if has('win32')
+    call assert_equal('rw-rw-rw-', getfperm('Xtest'))
+  else
+    call assert_equal('rwx------', getfperm('Xtest'))
+  endif
+
+  call assert_equal(1, setfperm('Xtest', 'r--r--r--'))
+  call assert_equal('r--r--r--', getfperm('Xtest'))
+
+  call assert_fails("setfperm('Xtest', '---')")
+
+  call assert_equal(1, setfperm('Xtest', 'rwx------'))
+  call delete('Xtest')
+
+  call assert_fails("call setfperm(['Xfile'], 'rw-rw-rw-')", 'E730:')
+  call assert_fails("call setfperm('Xfile', [])", 'E730:')
+  call assert_fails("call setfperm('Xfile', 'rwxrwxrwxrw')", 'E475:')
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/nvim/testdir/test_searchpos.vim b/src/nvim/testdir/test_searchpos.vim
new file mode 100644
index 0000000000..dd13c305c5
--- /dev/null
+++ b/src/nvim/testdir/test_searchpos.vim
@@ -0,0 +1,30 @@
+" Tests for searchpos()
+
+func Test_searchpos()
+  new one
+  0put ='1a3'
+  1put ='123xyz'
+  call cursor(1, 1)
+  call assert_equal([1, 1, 2], searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW'))
+  call cursor(1, 2)
+  call assert_equal([2, 1, 1], '\%(\([a-z]\)\|\_.\)\{-}xyz'->searchpos('pcW'))
+  set cpo-=c
+  call cursor(1, 2)
+  call assert_equal([1, 2, 2], searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW'))
+  call cursor(1, 3)
+  call assert_equal([1, 3, 1], searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW'))
+
+  " Now with \zs, first match is in column 0, "a" is matched.
+  call cursor(1, 3)
+  call assert_equal([2, 4, 2], searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcW'))
+  " With z flag start at cursor column, don't see the "a".
+  call cursor(1, 3)
+  call assert_equal([2, 4, 1], searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcWz'))
+
+  set cpo+=c
+  " close the window
+  q!
+
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/nvim/testdir/test_set.vim b/src/nvim/testdir/test_set.vim
new file mode 100644
index 0000000000..2b1e9eeee0
--- /dev/null
+++ b/src/nvim/testdir/test_set.vim
@@ -0,0 +1,29 @@
+" Tests for the :set command
+
+function Test_set_backslash()
+  let isk_save = &isk
+
+  set isk=a,b,c
+  set isk+=d
+  call assert_equal('a,b,c,d', &isk)
+  set isk+=\\,e
+  call assert_equal('a,b,c,d,\,e', &isk)
+  set isk-=e
+  call assert_equal('a,b,c,d,\', &isk)
+  set isk-=\\
+  call assert_equal('a,b,c,d', &isk)
+
+  let &isk = isk_save
+endfunction
+
+function Test_set_add()
+  let wig_save = &wig
+
+  set wildignore=*.png,
+  set wildignore+=*.jpg
+  call assert_equal('*.png,*.jpg', &wig)
+
+  let &wig = wig_save
+endfunction
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/nvim/testdir/test_sort.vim b/src/nvim/testdir/test_sort.vim
index 570c4415c6..f72368fc59 100644
--- a/src/nvim/testdir/test_sort.vim
+++ b/src/nvim/testdir/test_sort.vim
@@ -12,6 +12,7 @@ func Compare2(a, b) abort
 endfunc
 
 func Test_sort_strings()
+  CheckNotMSWindows  " FIXME: Why does this fail with MSVC?
   " numbers compared as strings
   call assert_equal([1, 2, 3], sort([3, 2, 1]))
   call assert_equal([13, 28, 3], sort([3, 28, 13]))
diff --git a/test/functional/legacy/delete_spec.lua b/test/functional/legacy/delete_spec.lua
index 141d9583e6..623b6b14a5 100644
--- a/test/functional/legacy/delete_spec.lua
+++ b/test/functional/legacy/delete_spec.lua
@@ -1,7 +1,6 @@
 local helpers = require('test.functional.helpers')(after_each)
 local clear, source = helpers.clear, helpers.source
 local eq, eval, command = helpers.eq, helpers.eval, helpers.command
-local exc_exec = helpers.exc_exec
 
 describe('Test for delete()', function()
   before_each(clear)
@@ -9,42 +8,6 @@ describe('Test for delete()', function()
     os.remove('Xfile')
   end)
 
-  it('file delete', function()
-    command('split Xfile')
-    command("call setline(1, ['a', 'b'])")
-    command('wq')
-    eq(eval("['a', 'b']"), eval("readfile('Xfile')"))
-    eq(0, eval("delete('Xfile')"))
-    eq(-1, eval("delete('Xfile')"))
-  end)
-
-  it('directory delete', function()
-    command("call mkdir('Xdir1')")
-    eq(1, eval("isdirectory('Xdir1')"))
-    eq(0, eval("delete('Xdir1', 'd')"))
-    eq(0, eval("isdirectory('Xdir1')"))
-    eq(-1, eval("delete('Xdir1', 'd')"))
-  end)
-  it('recursive delete', function()
-    command("call mkdir('Xdir1')")
-    command("call mkdir('Xdir1/subdir')")
-    command("call mkdir('Xdir1/empty')")
-    command('split Xdir1/Xfile')
-    command("call setline(1, ['a', 'b'])")
-    command('w')
-    command('w Xdir1/subdir/Xfile')
-    command('close')
-
-    eq(1, eval("isdirectory('Xdir1')"))
-    eq(eval("['a', 'b']"), eval("readfile('Xdir1/Xfile')"))
-    eq(1, eval("isdirectory('Xdir1/subdir')"))
-    eq(eval("['a', 'b']"), eval("readfile('Xdir1/subdir/Xfile')"))
-    eq(1, eval("'Xdir1/empty'->isdirectory()"))
-    eq(0, eval("delete('Xdir1', 'rf')"))
-    eq(0, eval("isdirectory('Xdir1')"))
-    eq(-1, eval("delete('Xdir1', 'd')"))
-  end)
-
   it('symlink delete', function()
     source([[
       split Xfile
@@ -115,10 +78,4 @@ describe('Test for delete()', function()
     eq(0, eval("delete('Xdir4/Xfile')"))
     eq(0, eval("delete('Xdir4', 'd')"))
   end)
-
-  it('gives correct emsgs', function()
-    eq('Vim(call):E474: Invalid argument', exc_exec("call delete('')"))
-    eq('Vim(call):E15: Invalid expression: 0',
-       exc_exec("call delete('foo', 0)"))
-  end)
 end)
diff --git a/test/functional/legacy/file_perm_spec.lua b/test/functional/legacy/file_perm_spec.lua
deleted file mode 100644
index ccdbfe0534..0000000000
--- a/test/functional/legacy/file_perm_spec.lua
+++ /dev/null
@@ -1,43 +0,0 @@
--- Test getting and setting file permissions.
-require('os')
-
-local helpers = require('test.functional.helpers')(after_each)
-local clear, call, eq = helpers.clear, helpers.call, helpers.eq
-local neq, exc_exec, eval = helpers.neq, helpers.exc_exec, helpers.eval
-
-describe('Test getting and setting file permissions', function()
-  local tempfile = helpers.tmpname()
-
-  before_each(function()
-    os.remove(tempfile)
-    clear()
-  end)
-
-  it('file permissions', function()
-    -- eval() is used to test VimL method syntax for setfperm() and getfperm()
-    eq('', call('getfperm', tempfile))
-    eq(0, eval("'" .. tempfile .. "'->setfperm('r--------')"))
-
-    call('writefile', {'one'}, tempfile)
-    eq(9, eval("len('" .. tempfile .. "'->getfperm())"))
-
-    eq(1, call('setfperm', tempfile, 'rwx------'))
-    if helpers.is_os('win') then
-      eq('rw-rw-rw-', call('getfperm', tempfile))
-    else
-      eq('rwx------', call('getfperm', tempfile))
-    end
-
-    eq(1, call('setfperm', tempfile, 'r--r--r--'))
-    eq('r--r--r--', call('getfperm', tempfile))
-
-    local err = exc_exec(('call setfperm("%s", "---")'):format(tempfile))
-    neq(err:find('E475:'), nil)
-
-    eq(1, call('setfperm', tempfile, 'rwx------'))
-  end)
-
-  after_each(function()
-    os.remove(tempfile)
-  end)
-end)
diff --git a/test/functional/legacy/searchpos_spec.lua b/test/functional/legacy/searchpos_spec.lua
deleted file mode 100644
index fc18341c38..0000000000
--- a/test/functional/legacy/searchpos_spec.lua
+++ /dev/null
@@ -1,35 +0,0 @@
-local helpers = require('test.functional.helpers')(after_each)
-local call = helpers.call
-local clear = helpers.clear
-local command = helpers.command
-local eq = helpers.eq
-local eval = helpers.eval
-local insert = helpers.insert
-
-describe('searchpos', function()
-  before_each(clear)
-
-  it('is working', function()
-    insert([[
-      1a3
-      123xyz]])
-
-    call('cursor', 1, 1)
-    eq({1, 1, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
-    call('cursor', 1, 2)
-    eq({2, 1, 1}, eval([['\%(\([a-z]\)\|\_.\)\{-}xyz'->searchpos('pcW')]]))
-
-    command('set cpo-=c')
-    call('cursor', 1, 2)
-    eq({1, 2, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
-    call('cursor', 1, 3)
-    eq({1, 3, 1}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
-
-    -- Now with \zs, first match is in column 0, "a" is matched.
-    call('cursor', 1, 3)
-    eq({2, 4, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcW')]]))
-    -- With z flag start at cursor column, don't see the "a".
-    call('cursor', 1, 3)
-    eq({2, 4, 1}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcWz')]]))
-  end)
-end)
diff --git a/test/functional/legacy/set_spec.lua b/test/functional/legacy/set_spec.lua
deleted file mode 100644
index deb268b1e8..0000000000
--- a/test/functional/legacy/set_spec.lua
+++ /dev/null
@@ -1,30 +0,0 @@
--- Tests for :set
-
-local helpers = require('test.functional.helpers')(after_each)
-local clear, command, eval, eq =
-  helpers.clear, helpers.command, helpers.eval, helpers.eq
-
-describe(':set', function()
-  before_each(clear)
-
-  it('handles backslash properly', function()
-    command('set iskeyword=a,b,c')
-    command('set iskeyword+=d')
-    eq('a,b,c,d', eval('&iskeyword'))
-
-    command([[set iskeyword+=\\,e]])
-    eq([[a,b,c,d,\,e]], eval('&iskeyword'))
-
-    command('set iskeyword-=e')
-    eq([[a,b,c,d,\]], eval('&iskeyword'))
-
-    command([[set iskeyword-=\]])
-    eq('a,b,c,d', eval('&iskeyword'))
-  end)
-
-  it('recognizes a trailing comma with +=', function()
-    command('set wildignore=*.png,')
-    command('set wildignore+=*.jpg')
-    eq('*.png,*.jpg', eval('&wildignore'))
-  end)
-end)