test: update tests to work with 'hidden'

src/nvim/testdir/test_autocmd.vim

@@ -998,6 +998,7 @@ func Test_bufunload_all()
     endfunc
     au BufUnload * call UnloadAllBufs()
     au VimLeave * call writefile(['Test Finished'], 'Xout')
+    set nohidden
     edit Xxx1
     split Xxx2
     q

src/nvim/testdir/test_command_count.vim

@@ -33,7 +33,7 @@ func Test_command_count_0()
   delcommand RangeBuffers
   delcommand RangeBuffersAll
 
-  set hidden&
+  set nohidden
   set swapfile&
 endfunc
 

src/nvim/testdir/test_diffmode.vim

@@ -540,7 +540,7 @@ func Test_diffopt_hiddenoff()
 
   bwipe!
   bwipe!
-  set hidden& diffopt&
+  set nohidden diffopt&
 endfunc
 
 func Test_diffoff_hidden()
@@ -577,7 +577,7 @@ func Test_diffoff_hidden()
 
   bwipe!
   bwipe!
-  set hidden& diffopt&
+  set nohidden diffopt&
 endfunc
 
 func Test_setting_cursor()

src/nvim/testdir/test_gf.vim

@@ -145,7 +145,7 @@ func Test_gf_visual()
 
   bwipe!
   call delete('Xtest_gf_visual')
-  set hidden&
+  set nohidden
 endfunc
 
 func Test_gf_error()

src/nvim/testdir/test_ins_complete.vim

@@ -95,7 +95,7 @@ func Test_ins_complete()
   call delete('Xtest11.one')
   call delete('Xtest11.two')
   call delete('Xtestdata')
-  set cpt& cot& def& tags& tagbsearch& hidden&
+  set cpt& cot& def& tags& tagbsearch& nohidden
   cd ..
   call delete('Xdir', 'rf')
 endfunc

src/nvim/testdir/test_join.vim

@@ -35,7 +35,6 @@ endfunc
 
 " Tests for setting the '[,'] marks when joining lines.
 func Test_join_marks()
-  set joinspaces
   enew
   call append(0, [
 	      \ "\t\tO sodales, ludite, vos qui",
@@ -52,9 +51,8 @@ func Test_join_marks()
 
   /^This line/;'}-join
   call assert_equal([0, 4, 11, 0], getpos("'["))
-  call assert_equal([0, 4, 67, 0], getpos("']"))
+  call assert_equal([0, 4, 66, 0], getpos("']"))
   enew!
-  set nojoinspaces
 endfunc
 
 " Test for joining lines and marks in them

src/nvim/testdir/test_mksession.vim

@@ -307,7 +307,7 @@ func Test_mksession_buffer_count()
   call delete('Xbaz')
   call delete('Xtest_mks.out')
   %bwipe!
-  set hidden&
+  set nohidden
 endfunc
 
 if has('extra_search')

src/nvim/testdir/test_options.vim

@@ -539,7 +539,7 @@ func Test_copy_winopt()
   call assert_equal(4,&numberwidth)
   bw!
 
-  set hidden&
+  set nohidden
 endfunc
 
 func Test_shortmess_F()

src/nvim/testdir/test_tagjump.vim

@@ -170,7 +170,7 @@ func Test_tag_symbolic()
   call assert_equal('Xtest.c', expand('%:t'))
   call assert_equal(2, col('.'))
 
-  set hidden&
+  set nohidden
   set tags&
   enew!
   call delete('Xtags')

src/nvim/testdir/test_window_cmd.vim

@@ -608,7 +608,7 @@ func Test_window_prevwin()
   " reset
   q
   call delete('tmp.txt')
-  set hidden&vim autoread&vim
+  set nohidden autoread&vim
   delfunc Fun_RenewFile
 endfunc
 

test/functional/api/buffer_updates_spec.lua

@@ -159,9 +159,8 @@ describe('API: buffer events:', function()
     tick = tick + 1
     expectn('nvim_buf_lines_event', {b, tick, 29, 29, firstfour, false})
 
-    -- create a new empty buffer and wipe out the old one ... this will
-    -- turn off buffer events
-    command('enew!')
+    -- delete the current buffer to turn off buffer events
+    command('bdelete!')
     expectn('nvim_buf_detach_event', {b})
 
     -- add a line at the start of an empty file
@@ -269,7 +268,7 @@ describe('API: buffer events:', function()
                                            'original foo'}, false})
 
     -- type text into the first line of a blank file, one character at a time
-    command('enew!')
+    command('bdelete!')
     tick = 2
     expectn('nvim_buf_detach_event', {b})
     local bnew = nvim('get_current_buf')
@@ -666,7 +665,8 @@ describe('API: buffer events:', function()
     tick = tick + 1
     expectn('nvim_buf_changedtick_event', {b, tick})
 
-    -- close our buffer by creating a new one
+    -- close our buffer and create a new one
+    command('bdelete')
     command('enew')
     expectn('nvim_buf_detach_event', {b})
 

test/functional/api/window_spec.lua

@@ -311,7 +311,8 @@ describe('API/win', function()
       eq({newwin}, meths.list_wins())
     end)
 
-    it('handles changed buffer', function()
+    it("handles changed buffer when 'hidden' is unset", function()
+      command('set nohidden')
       local oldwin = meths.get_current_win()
       insert('text')
       command('new')

test/functional/eval/buf_functions_spec.lua

@@ -221,9 +221,9 @@ describe('getbufvar() function', function()
     eq(0, funcs.getbufvar(1, '&l:autoindent'))
     eq(0, funcs.getbufvar(1, '&g:autoindent'))
     -- Also works with global-only options
-    eq(0, funcs.getbufvar(1, '&hidden'))
-    eq(0, funcs.getbufvar(1, '&l:hidden'))
-    eq(0, funcs.getbufvar(1, '&g:hidden'))
+    eq(1, funcs.getbufvar(1, '&hidden'))
+    eq(1, funcs.getbufvar(1, '&l:hidden'))
+    eq(1, funcs.getbufvar(1, '&g:hidden'))
     -- Also works with window-local options
     eq(0, funcs.getbufvar(1, '&number'))
     eq(0, funcs.getbufvar(1, '&l:number'))
@@ -279,9 +279,9 @@ describe('setbufvar() function', function()
     eq(false, winmeths.get_option(windows[3], 'number'))
     eq(false, winmeths.get_option(meths.get_current_win(), 'number'))
 
-    eq(false, meths.get_option('hidden'))
-    funcs.setbufvar(1, '&hidden', true)
     eq(true, meths.get_option('hidden'))
+    funcs.setbufvar(1, '&hidden', 0)
+    eq(false, meths.get_option('hidden'))
 
     eq(false, bufmeths.get_option(buf1, 'autoindent'))
     funcs.setbufvar(1, '&autoindent', true)

test/functional/ex_cmds/quickfix_commands_spec.lua

@@ -47,6 +47,7 @@ for _, c in ipairs({'l', 'c'}) do
       eq(('%s-2.res'):format(file), funcs.bufname(list[2].bufnr))
 
       -- Run cfile/lfile from a modified buffer
+      command('set nohidden')
       command('enew!')
       curbufmeths.set_lines(1, 1, true, {'Quickfix'})
       eq(('Vim(%s):E37: No write since last change (add ! to override)'):format(

test/functional/legacy/007_ball_buffer_list_spec.lua

@@ -8,6 +8,9 @@ describe(':ball', function()
   setup(clear)
 
   it('is working', function()
+    -- Must disable 'hidden' so that the BufReadPost autocmd is triggered
+    -- when Xxx2 is reloaded
+    feed_command('set nohidden')
     insert([[
       start of test file Xxx
           this is a test
@@ -18,7 +21,7 @@ describe(':ball', function()
     feed('gg')
 
     -- Write test file Xxx1
-    feed('A1:.,/end of/w! Xxx1<cr>')
+    feed('A1<esc>:.,/end of/w! Xxx1<cr>')
     feed_command('sp Xxx1')
     feed_command('close')
 

test/functional/legacy/008_autocommands_spec.lua

@@ -71,6 +71,9 @@ describe('autocommands that delete and unload buffers:', function()
       au BufUnload * call CloseAll()
       au VimLeave * call WriteToOut()
     ]])
+    -- Must disable 'hidden' so that the BufUnload autocmd is triggered between
+    -- each :edit
+    command('set nohidden')
     command('silent! edit Xxx2')
     command('silent! edit Xxx1')
     command('silent! edit Makefile') -- an existing file

test/functional/legacy/011_autocommands_spec.lua

@@ -129,13 +129,11 @@ describe('file reading, writing and bufnew and filter autocommands', function()
     -- Will load Xtest.c.
     feed_command('e! foo.c')
     feed_command("au FileAppendPre   *.out  '[,']s/new/NEW/")
-    feed_command('au FileAppendPost  *.out  !cat Xtest.c >>test.out')
+    feed_command('au FileAppendPost  *.out  !cat Xtest.c >test.out')
     -- Append it to the output file.
     feed_command('w>>test.out')
     -- Discard all prompts and messages.
     feed('<C-L>')
-    -- Expect the decompressed file in the buffer.
-    feed_command('e test.out')
     expect([[
       
       /*

test/functional/legacy/012_directory_spec.lua

@@ -80,6 +80,7 @@ describe("'directory' option", function()
     eq({ "Xtest1.swp", "Xtest3" }, ls_dir_sorted("Xtest2"))
 
     meths.set_option('directory', 'Xtest.je')
+    command('bdelete')
     command('edit Xtest2/Xtest3')
     eq(true, curbufmeths.get_option('swapfile'))
     poke_eventloop()

test/functional/legacy/arglist_spec.lua

@@ -156,10 +156,12 @@ describe('argument list commands', function()
     eq({'a', 'b', 'a', 'c'}, eval('argv()'))
     command('0argedit x')
     eq({'x', 'a', 'b', 'a', 'c'}, eval('argv()'))
+    command('set nohidden')
     command('enew! | set modified')
     assert_fails('argedit y', 'E37:')
     command('argedit! y')
     eq({'x', 'y', 'y', 'a', 'b', 'a', 'c'}, eval('argv()'))
+    command('set hidden')
     command('%argd')
     command('argedit a b')
     eq({'a', 'b'}, eval('argv()'))

test/functional/legacy/cdo_spec.lua

@@ -91,7 +91,8 @@ describe('cdo', function()
         exe "silent! 4,5" . XdoCmd
         call assert_equal([], l)
 
-        " Run commands from an unsaved buffer
+        " Run commands from an unsaved buffer when 'hidden' is unset
+        set nohidden
         let v:errmsg=''
         let l = []
         enew
@@ -108,6 +109,7 @@ describe('cdo', function()
         if subst_count != 1 || getline('.') != 'xLine1'
           call add(v:errors, 'Abort command on error test failed')
         endif
+        set hidden
 
         let l = []
         exe "2,2" . Xdo . "! call add(l, GetRuler())"

test/functional/legacy/fixeol_spec.lua

@@ -23,8 +23,6 @@ describe('fixeol', function()
 
   it('is working', function()
     -- First write two test files – with and without trailing EOL.
-    -- Use Unix fileformat for consistency.
-    feed_command('set ff=unix')
     feed_command('enew!')
     feed('awith eol<esc>:w! XXEol<cr>')
     feed_command('enew!')
@@ -40,7 +38,7 @@ describe('fixeol', function()
     feed_command('e! XXNoEol')
     feed('ostays without<esc>:set nofixeol<cr>')
     feed_command('w! XXTestNoEol')
-    feed_command('bwipe XXEol XXNoEol XXTestEol XXTestNoEol')
+    feed_command('bwipe! XXEol XXNoEol XXTestEol XXTestNoEol')
     feed_command('set fixeol')
 
     -- Append "END" to each file so that we can see what the last written char was.

test/functional/plugin/shada_spec.lua

@@ -2161,6 +2161,12 @@ describe('plugin/shada.vim', function()
     reset()
     wshada('\004\000\009\147\000\196\002ab\196\001a')
     wshada_tmp('\004\000\009\147\000\196\002ab\196\001b')
+
+    -- Need to set nohidden so that the buffer containing 'fname' is not unloaded
+    -- after loading 'fname_tmp', otherwise the '++opt not supported' test below
+    -- won't work since the BufReadCmd autocmd won't be triggered.
+    nvim_command('set nohidden')
+
     nvim_command('edit ' .. fname)
     eq({
       'History entry with timestamp ' .. epoch .. ':',

test/functional/ui/float_spec.lua

@@ -74,7 +74,8 @@ describe('float window', function()
     funcs.win_execute(win, 'bwipe!')
   end)
 
-  it('win_execute() call commands that not allowed' , function()
+  it("win_execute() call commands that are not allowed when 'hidden' is not set" , function()
+    command('set nohidden')
     local buf = meths.create_buf(false, false)
     meths.buf_set_lines(buf, 0, -1, true, {'the floatwin'})
     local win = meths.open_win(buf, true, {relative='win', width=16, height=1, row=0, col=10})

test/functional/ui/tabline_spec.lua

@@ -69,6 +69,7 @@ describe('ui/ext_tabline', function()
     command("bnext")
 
     local expected_buffers = {
+      {buffer = { id = 1 }, name = '[No Name]'},
       {buffer = { id = 2 }, name = 'another-buffer'},
     }
     screen:expect{grid=[[