refactor: format test/*

1 files changed, 195 insertions, 103 deletions

diff --git a/test/functional/lua/runtime_spec.lua b/test/functional/lua/runtime_spec.lua
index 0b8b2234db..84948490ae 100644
--- a/test/functional/lua/runtime_spec.lua
+++ b/test/functional/lua/runtime_spec.lua
@@ -15,8 +15,8 @@ describe('runtime:', function()
   local init = 'dummy_init.lua'
 
   setup(function()
-    io.open(init, 'w'):close()  --  touch init file
-    clear{args = {'-u', init}}
+    io.open(init, 'w'):close() --  touch init file
+    clear { args = { '-u', init } }
     exec('set rtp+=' .. plug_dir)
     exec([[
       set shell=doesnotexist
@@ -45,11 +45,11 @@ describe('runtime:', function()
     end)
 
     it('lua colorschemes work and are included in cmdline completion', function()
-      local colorscheme_file = table.concat({colorscheme_folder, 'new_colorscheme.lua'}, sep)
+      local colorscheme_file = table.concat({ colorscheme_folder, 'new_colorscheme.lua' }, sep)
       write_file(colorscheme_file, [[vim.g.lua_colorscheme = 1]])
 
-      eq({'new_colorscheme'}, funcs.getcompletion('new_c', 'color'))
-      eq({'colors/new_colorscheme.lua'}, funcs.getcompletion('colors/new_c', 'runtime'))
+      eq({ 'new_colorscheme' }, funcs.getcompletion('new_c', 'color'))
+      eq({ 'colors/new_colorscheme.lua' }, funcs.getcompletion('colors/new_c', 'runtime'))
 
       exec('colorscheme new_colorscheme')
 
@@ -64,48 +64,60 @@ describe('runtime:', function()
       end)
       exec('set pp+=' .. pack_dir)
 
-      local pack_opt_dir = table.concat({pack_dir, 'pack', 'some_name', 'opt'}, sep)
-      local colors_opt_dir = table.concat({pack_opt_dir, 'some_pack', 'colors'}, sep)
+      local pack_opt_dir = table.concat({ pack_dir, 'pack', 'some_name', 'opt' }, sep)
+      local colors_opt_dir = table.concat({ pack_opt_dir, 'some_pack', 'colors' }, sep)
       mkdir_p(colors_opt_dir)
 
-      local after_colorscheme_folder = table.concat({plug_dir, 'after', 'colors'}, sep)
+      local after_colorscheme_folder = table.concat({ plug_dir, 'after', 'colors' }, sep)
       mkdir_p(after_colorscheme_folder)
       exec('set rtp+=' .. plug_dir .. '/after')
 
-      write_file(table.concat({colors_opt_dir, 'new_colorscheme.lua'}, sep),
-                 [[vim.g.colorscheme = 'lua_pp']])
+      write_file(
+        table.concat({ colors_opt_dir, 'new_colorscheme.lua' }, sep),
+        [[vim.g.colorscheme = 'lua_pp']]
+      )
       exec('colorscheme new_colorscheme')
       eq('lua_pp', eval('g:colorscheme'))
 
-      write_file(table.concat({colors_opt_dir, 'new_colorscheme.vim'}, sep),
-                 [[let g:colorscheme = 'vim_pp']])
+      write_file(
+        table.concat({ colors_opt_dir, 'new_colorscheme.vim' }, sep),
+        [[let g:colorscheme = 'vim_pp']]
+      )
       exec('colorscheme new_colorscheme')
       eq('vim_pp', eval('g:colorscheme'))
 
-      write_file(table.concat({after_colorscheme_folder, 'new_colorscheme.lua'}, sep),
-                 [[vim.g.colorscheme = 'lua_rtp_after']])
+      write_file(
+        table.concat({ after_colorscheme_folder, 'new_colorscheme.lua' }, sep),
+        [[vim.g.colorscheme = 'lua_rtp_after']]
+      )
       exec('colorscheme new_colorscheme')
       eq('lua_rtp_after', eval('g:colorscheme'))
 
-      write_file(table.concat({after_colorscheme_folder, 'new_colorscheme.vim'}, sep),
-                 [[let g:colorscheme = 'vim_rtp_after']])
+      write_file(
+        table.concat({ after_colorscheme_folder, 'new_colorscheme.vim' }, sep),
+        [[let g:colorscheme = 'vim_rtp_after']]
+      )
       exec('colorscheme new_colorscheme')
       eq('vim_rtp_after', eval('g:colorscheme'))
 
-      write_file(table.concat({colorscheme_folder, 'new_colorscheme.lua'}, sep),
-                 [[vim.g.colorscheme = 'lua_rtp']])
+      write_file(
+        table.concat({ colorscheme_folder, 'new_colorscheme.lua' }, sep),
+        [[vim.g.colorscheme = 'lua_rtp']]
+      )
       exec('colorscheme new_colorscheme')
       eq('lua_rtp', eval('g:colorscheme'))
 
-      write_file(table.concat({colorscheme_folder, 'new_colorscheme.vim'}, sep),
-                 [[let g:colorscheme = 'vim_rtp']])
+      write_file(
+        table.concat({ colorscheme_folder, 'new_colorscheme.vim' }, sep),
+        [[let g:colorscheme = 'vim_rtp']]
+      )
       exec('colorscheme new_colorscheme')
       eq('vim_rtp', eval('g:colorscheme'))
     end)
   end)
 
   describe('compiler', function()
-    local compiler_folder = table.concat({plug_dir, 'compiler'}, sep)
+    local compiler_folder = table.concat({ plug_dir, 'compiler' }, sep)
     before_each(function()
       mkdir_p(compiler_folder)
     end)
@@ -114,8 +126,8 @@ describe('runtime:', function()
       local compiler_file = compiler_folder .. sep .. 'new_compiler.lua'
       write_file(compiler_file, [[vim.b.lua_compiler = 1]])
 
-      eq({'new_compiler'}, funcs.getcompletion('new_c', 'compiler'))
-      eq({'compiler/new_compiler.lua'}, funcs.getcompletion('compiler/new_c', 'runtime'))
+      eq({ 'new_compiler' }, funcs.getcompletion('new_c', 'compiler'))
+      eq({ 'compiler/new_compiler.lua' }, funcs.getcompletion('compiler/new_c', 'runtime'))
 
       exec('compiler new_compiler')
 
@@ -123,126 +135,189 @@ describe('runtime:', function()
     end)
 
     it("'rtp' order is respected", function()
-      local after_compiler_folder = table.concat({plug_dir, 'after', 'compiler'}, sep)
-      mkdir_p(table.concat({compiler_folder, 'new_compiler'}, sep))
-      mkdir_p(table.concat({after_compiler_folder, 'new_compiler'}, sep))
+      local after_compiler_folder = table.concat({ plug_dir, 'after', 'compiler' }, sep)
+      mkdir_p(table.concat({ compiler_folder, 'new_compiler' }, sep))
+      mkdir_p(table.concat({ after_compiler_folder, 'new_compiler' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/compiler/ are loaded after all files in compiler/.
-      write_file(table.concat({compiler_folder, 'new_compiler.vim'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({compiler_folder, 'new_compiler.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({after_compiler_folder, 'new_compiler.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_compiler_folder, 'new_compiler.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
+      write_file(table.concat({ compiler_folder, 'new_compiler.vim' }, sep), [[let g:seq ..= 'A']])
+      write_file(
+        table.concat({ compiler_folder, 'new_compiler.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'B']]
+      )
+      write_file(
+        table.concat({ after_compiler_folder, 'new_compiler.vim' }, sep),
+        [[let g:seq ..= 'a']]
+      )
+      write_file(
+        table.concat({ after_compiler_folder, 'new_compiler.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
       exec('compiler new_compiler')
       eq('ABab', eval('g:seq'))
     end)
   end)
 
   describe('ftplugin', function()
-    local ftplugin_folder = table.concat({plug_dir, 'ftplugin'}, sep)
+    local ftplugin_folder = table.concat({ plug_dir, 'ftplugin' }, sep)
 
     it('lua ftplugins work and are included in cmdline completion', function()
       mkdir_p(ftplugin_folder)
-      local ftplugin_file = table.concat({ftplugin_folder , 'new-ft.lua'}, sep)
-      write_file(ftplugin_file , [[vim.b.lua_ftplugin = 1]])
+      local ftplugin_file = table.concat({ ftplugin_folder, 'new-ft.lua' }, sep)
+      write_file(ftplugin_file, [[vim.b.lua_ftplugin = 1]])
 
-      eq({'new-ft'}, funcs.getcompletion('new-f', 'filetype'))
-      eq({'ftplugin/new-ft.lua'}, funcs.getcompletion('ftplugin/new-f', 'runtime'))
+      eq({ 'new-ft' }, funcs.getcompletion('new-f', 'filetype'))
+      eq({ 'ftplugin/new-ft.lua' }, funcs.getcompletion('ftplugin/new-f', 'runtime'))
 
       exec [[set filetype=new-ft]]
       eq(1, eval('b:lua_ftplugin'))
     end)
 
     it("'rtp' order is respected", function()
-      local after_ftplugin_folder = table.concat({plug_dir, 'after', 'ftplugin'}, sep)
-      mkdir_p(table.concat({ftplugin_folder, 'new-ft'}, sep))
-      mkdir_p(table.concat({after_ftplugin_folder, 'new-ft'}, sep))
+      local after_ftplugin_folder = table.concat({ plug_dir, 'after', 'ftplugin' }, sep)
+      mkdir_p(table.concat({ ftplugin_folder, 'new-ft' }, sep))
+      mkdir_p(table.concat({ after_ftplugin_folder, 'new-ft' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/ftplugin/ are loaded after all files in ftplugin/.
-      write_file(table.concat({ftplugin_folder, 'new-ft.vim'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({ftplugin_folder, 'new-ft.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({ftplugin_folder, 'new-ft_a.vim'}, sep), [[let g:seq ..= 'C']])
-      write_file(table.concat({ftplugin_folder, 'new-ft_a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'D']])
-      write_file(table.concat({ftplugin_folder, 'new-ft', 'a.vim'}, sep), [[let g:seq ..= 'E']])
-      write_file(table.concat({ftplugin_folder, 'new-ft', 'a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'F']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft_a.vim'}, sep), [[let g:seq ..= 'c']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft_a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'd']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft', 'a.vim'}, sep), [[let g:seq ..= 'e']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft', 'a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'f']])
+      write_file(table.concat({ ftplugin_folder, 'new-ft.vim' }, sep), [[let g:seq ..= 'A']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'B']]
+      )
+      write_file(table.concat({ ftplugin_folder, 'new-ft_a.vim' }, sep), [[let g:seq ..= 'C']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft_a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'D']]
+      )
+      write_file(table.concat({ ftplugin_folder, 'new-ft', 'a.vim' }, sep), [[let g:seq ..= 'E']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft', 'a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'F']]
+      )
+      write_file(table.concat({ after_ftplugin_folder, 'new-ft.vim' }, sep), [[let g:seq ..= 'a']])
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft_a.vim' }, sep),
+        [[let g:seq ..= 'c']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft_a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'd']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft', 'a.vim' }, sep),
+        [[let g:seq ..= 'e']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft', 'a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'f']]
+      )
       exec('setfiletype new-ft')
       eq('ABCDEFabcdef', eval('g:seq'))
     end)
 
     it("'rtp' order is respected with 'fileignorecase'", function()
       exec('set fileignorecase')
-      local after_ftplugin_folder = table.concat({plug_dir, 'after', 'ftplugin'}, sep)
-      mkdir_p(table.concat({ftplugin_folder, 'new-ft'}, sep))
-      mkdir_p(table.concat({after_ftplugin_folder, 'new-ft'}, sep))
+      local after_ftplugin_folder = table.concat({ plug_dir, 'after', 'ftplugin' }, sep)
+      mkdir_p(table.concat({ ftplugin_folder, 'new-ft' }, sep))
+      mkdir_p(table.concat({ after_ftplugin_folder, 'new-ft' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/ftplugin/ are loaded after all files in ftplugin/.
-      write_file(table.concat({ftplugin_folder, 'new-ft.VIM'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({ftplugin_folder, 'new-ft.LUA'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({ftplugin_folder, 'new-ft_a.vim'}, sep), [[let g:seq ..= 'C']])
-      write_file(table.concat({ftplugin_folder, 'new-ft_a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'D']])
-      write_file(table.concat({ftplugin_folder, 'new-ft', 'a.VIM'}, sep), [[let g:seq ..= 'E']])
-      write_file(table.concat({ftplugin_folder, 'new-ft', 'a.LUA'}, sep), [[vim.g.seq = vim.g.seq .. 'F']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft_a.VIM'}, sep), [[let g:seq ..= 'c']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft_a.LUA'}, sep), [[vim.g.seq = vim.g.seq .. 'd']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft', 'a.vim'}, sep), [[let g:seq ..= 'e']])
-      write_file(table.concat({after_ftplugin_folder, 'new-ft', 'a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'f']])
+      write_file(table.concat({ ftplugin_folder, 'new-ft.VIM' }, sep), [[let g:seq ..= 'A']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft.LUA' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'B']]
+      )
+      write_file(table.concat({ ftplugin_folder, 'new-ft_a.vim' }, sep), [[let g:seq ..= 'C']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft_a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'D']]
+      )
+      write_file(table.concat({ ftplugin_folder, 'new-ft', 'a.VIM' }, sep), [[let g:seq ..= 'E']])
+      write_file(
+        table.concat({ ftplugin_folder, 'new-ft', 'a.LUA' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'F']]
+      )
+      write_file(table.concat({ after_ftplugin_folder, 'new-ft.vim' }, sep), [[let g:seq ..= 'a']])
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft_a.VIM' }, sep),
+        [[let g:seq ..= 'c']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft_a.LUA' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'd']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft', 'a.vim' }, sep),
+        [[let g:seq ..= 'e']]
+      )
+      write_file(
+        table.concat({ after_ftplugin_folder, 'new-ft', 'a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'f']]
+      )
       exec('setfiletype new-ft')
       eq('ABCDEFabcdef', eval('g:seq'))
     end)
   end)
 
   describe('indent', function()
-    local indent_folder = table.concat({plug_dir, 'indent'}, sep)
+    local indent_folder = table.concat({ plug_dir, 'indent' }, sep)
 
     it('lua indents work and are included in cmdline completion', function()
       mkdir_p(indent_folder)
-      local indent_file = table.concat({indent_folder , 'new-ft.lua'}, sep)
-      write_file(indent_file , [[vim.b.lua_indent = 1]])
+      local indent_file = table.concat({ indent_folder, 'new-ft.lua' }, sep)
+      write_file(indent_file, [[vim.b.lua_indent = 1]])
 
-      eq({'new-ft'}, funcs.getcompletion('new-f', 'filetype'))
-      eq({'indent/new-ft.lua'}, funcs.getcompletion('indent/new-f', 'runtime'))
+      eq({ 'new-ft' }, funcs.getcompletion('new-f', 'filetype'))
+      eq({ 'indent/new-ft.lua' }, funcs.getcompletion('indent/new-f', 'runtime'))
 
       exec [[set filetype=new-ft]]
       eq(1, eval('b:lua_indent'))
     end)
 
     it("'rtp' order is respected", function()
-      local after_indent_folder = table.concat({plug_dir, 'after', 'indent'}, sep)
-      mkdir_p(table.concat({indent_folder, 'new-ft'}, sep))
-      mkdir_p(table.concat({after_indent_folder, 'new-ft'}, sep))
+      local after_indent_folder = table.concat({ plug_dir, 'after', 'indent' }, sep)
+      mkdir_p(table.concat({ indent_folder, 'new-ft' }, sep))
+      mkdir_p(table.concat({ after_indent_folder, 'new-ft' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/indent/ are loaded after all files in indent/.
-      write_file(table.concat({indent_folder, 'new-ft.vim'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({indent_folder, 'new-ft.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({after_indent_folder, 'new-ft.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_indent_folder, 'new-ft.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
+      write_file(table.concat({ indent_folder, 'new-ft.vim' }, sep), [[let g:seq ..= 'A']])
+      write_file(
+        table.concat({ indent_folder, 'new-ft.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'B']]
+      )
+      write_file(table.concat({ after_indent_folder, 'new-ft.vim' }, sep), [[let g:seq ..= 'a']])
+      write_file(
+        table.concat({ after_indent_folder, 'new-ft.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
       exec('setfiletype new-ft')
       eq('ABab', eval('g:seq'))
     end)
   end)
 
   describe('syntax', function()
-    local syntax_folder = table.concat({plug_dir, 'syntax'}, sep)
+    local syntax_folder = table.concat({ plug_dir, 'syntax' }, sep)
 
     before_each(function()
       mkdir_p(syntax_folder)
-      local syntax_file = table.concat({syntax_folder , 'my-lang.lua'}, sep)
-      write_file(syntax_file , [[vim.b.current_syntax = 'my-lang']])
+      local syntax_file = table.concat({ syntax_folder, 'my-lang.lua' }, sep)
+      write_file(syntax_file, [[vim.b.current_syntax = 'my-lang']])
       exec([[let b:current_syntax = '']])
     end)
 
@@ -263,27 +338,42 @@ describe('runtime:', function()
     end)
 
     it('lua syntaxes are included in cmdline completion', function()
-      eq({'my-lang'}, funcs.getcompletion('my-l', 'filetype'))
-      eq({'my-lang'}, funcs.getcompletion('my-l', 'syntax'))
-      eq({'syntax/my-lang.lua'}, funcs.getcompletion('syntax/my-l', 'runtime'))
+      eq({ 'my-lang' }, funcs.getcompletion('my-l', 'filetype'))
+      eq({ 'my-lang' }, funcs.getcompletion('my-l', 'syntax'))
+      eq({ 'syntax/my-lang.lua' }, funcs.getcompletion('syntax/my-l', 'runtime'))
     end)
 
     it("'rtp' order is respected", function()
-      local after_syntax_folder = table.concat({plug_dir, 'after', 'syntax'}, sep)
-      mkdir_p(table.concat({syntax_folder, 'my-lang'}, sep))
-      mkdir_p(table.concat({after_syntax_folder, 'my-lang'}, sep))
+      local after_syntax_folder = table.concat({ plug_dir, 'after', 'syntax' }, sep)
+      mkdir_p(table.concat({ syntax_folder, 'my-lang' }, sep))
+      mkdir_p(table.concat({ after_syntax_folder, 'my-lang' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/syntax/ are loaded after all files in syntax/.
-      write_file(table.concat({syntax_folder, 'my-lang.vim'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({syntax_folder, 'my-lang.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({syntax_folder, 'my-lang', 'a.vim'}, sep), [[let g:seq ..= 'C']])
-      write_file(table.concat({syntax_folder, 'my-lang', 'a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'D']])
-      write_file(table.concat({after_syntax_folder, 'my-lang.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_syntax_folder, 'my-lang.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
-      write_file(table.concat({after_syntax_folder, 'my-lang', 'a.vim'}, sep), [[let g:seq ..= 'c']])
-      write_file(table.concat({after_syntax_folder, 'my-lang', 'a.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'd']])
+      write_file(table.concat({ syntax_folder, 'my-lang.vim' }, sep), [[let g:seq ..= 'A']])
+      write_file(
+        table.concat({ syntax_folder, 'my-lang.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'B']]
+      )
+      write_file(table.concat({ syntax_folder, 'my-lang', 'a.vim' }, sep), [[let g:seq ..= 'C']])
+      write_file(
+        table.concat({ syntax_folder, 'my-lang', 'a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'D']]
+      )
+      write_file(table.concat({ after_syntax_folder, 'my-lang.vim' }, sep), [[let g:seq ..= 'a']])
+      write_file(
+        table.concat({ after_syntax_folder, 'my-lang.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
+      write_file(
+        table.concat({ after_syntax_folder, 'my-lang', 'a.vim' }, sep),
+        [[let g:seq ..= 'c']]
+      )
+      write_file(
+        table.concat({ after_syntax_folder, 'my-lang', 'a.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'd']]
+      )
       exec('setfiletype my-lang')
       eq('ABCDabcd', eval('g:seq'))
     end)
@@ -291,21 +381,23 @@ describe('runtime:', function()
 
   describe('spell', function()
     it("loads spell/LANG.{vim,lua} respecting 'rtp' order", function()
-      local spell_folder = table.concat({plug_dir, 'spell'}, sep)
-      local after_spell_folder = table.concat({plug_dir, 'after', 'spell'}, sep)
-      mkdir_p(table.concat({spell_folder, 'Xtest'}, sep))
-      mkdir_p(table.concat({after_spell_folder, 'Xtest'}, sep))
+      local spell_folder = table.concat({ plug_dir, 'spell' }, sep)
+      local after_spell_folder = table.concat({ plug_dir, 'after', 'spell' }, sep)
+      mkdir_p(table.concat({ spell_folder, 'Xtest' }, sep))
+      mkdir_p(table.concat({ after_spell_folder, 'Xtest' }, sep))
       exec('set rtp+=' .. plug_dir .. '/after')
       exec('let g:seq = ""')
       -- A .lua file is loaded after a .vim file if they only differ in extension.
       -- All files in after/spell/ are loaded after all files in spell/.
-      write_file(table.concat({spell_folder, 'Xtest.vim'}, sep), [[let g:seq ..= 'A']])
-      write_file(table.concat({spell_folder, 'Xtest.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'B']])
-      write_file(table.concat({after_spell_folder, 'Xtest.vim'}, sep), [[let g:seq ..= 'a']])
-      write_file(table.concat({after_spell_folder, 'Xtest.lua'}, sep), [[vim.g.seq = vim.g.seq .. 'b']])
+      write_file(table.concat({ spell_folder, 'Xtest.vim' }, sep), [[let g:seq ..= 'A']])
+      write_file(table.concat({ spell_folder, 'Xtest.lua' }, sep), [[vim.g.seq = vim.g.seq .. 'B']])
+      write_file(table.concat({ after_spell_folder, 'Xtest.vim' }, sep), [[let g:seq ..= 'a']])
+      write_file(
+        table.concat({ after_spell_folder, 'Xtest.lua' }, sep),
+        [[vim.g.seq = vim.g.seq .. 'b']]
+      )
       exec('set spelllang=Xtest')
       eq('ABab', eval('g:seq'))
     end)
   end)
-
 end)