test: 'shadafile' default

ref 773bdd41ec

runtime/doc/options.txt

@@ -5049,7 +5049,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 	security reasons.
 
 				*'shadafile'* *'sdf'*
-'shadafile' 'vif'	string	(default: "")
+'shadafile' 'sdf'	string	(default: "")
 			global
 	When non-empty, overrides the file name used for |shada| (viminfo).
 	When equal to "NONE" no shada file will be read or written.

runtime/doc/starting.txt

@@ -1081,15 +1081,16 @@ even if other entries (with known name/type/etc) are merged. |shada-merging|
 
 SHADA FILE NAME						*shada-file-name*
 
-- The default name of the ShaDa file is "$XDG_DATA_HOME/nvim/shada/main.shada" 
-  for Unix. Default for $XDG_DATA_HOME is ~/.local/share. |base-directories|
-- The 'n' flag in the 'shada' option can be used to specify another ShaDa
-  file name |'shada'|.
-- The "-i" Vim argument can be used to set another file name, |-i|.  When the
-  file name given is "NONE" (all uppercase), no ShaDa file is ever read or
-  written.  Also not for the commands below!
-- The 'viminfofile' option can be used like the "-i" argument.  In fact, the
-  value form the "-i" argument is stored in the 'viminfofile' option.
+- Default name of the |shada| file is:
+      Unix:     "$XDG_DATA_HOME/nvim/shada/main.shada"
+      Windows:  "$XDG_DATA_HOME/nvim-data/shada/main.shada"
+  See also |base-directories|.
+- To choose a different file name you can use:
+    - The "n" flag in the 'shada' option.
+    - The |-i| startup argument.  "NONE" means no shada file is ever read or
+      written.  Also not for the commands below!
+    - The 'shadafile' option.  The value from the "-i" argument (if any) is
+      stored in the 'shadafile' option.
 - For the commands below, another file name can be given, overriding the
   default and the name given with 'shada' or "-i" (unless it's NONE).
 

test/functional/helpers.lua

@@ -351,12 +351,13 @@ end
 
 -- Starts a new global Nvim session.
 -- Parameters are interpreted as startup args, OR a map with these keys:
---    args: Merged with the default `nvim_argv` set.
+--    args: Appended to the default `nvim_argv` set.
 --    env : Defines the environment of the new session.
+--    headless: Append --headless arg.
 --
 -- Example:
 --    clear('-e')
---    clear({args={'-e'}, env={TERM=term}})
+--    clear{args={'-e'}, env={TERM=term}}
 local function clear(...)
   local args = {unpack(nvim_argv)}
   local new_args

test/functional/options/defaults_spec.lua

@@ -15,6 +15,9 @@ local neq = helpers.neq
 local mkdir = helpers.mkdir
 local rmdir = helpers.rmdir
 local alter_slashes = helpers.alter_slashes
+local spawn = helpers.spawn
+local nvim_prog = helpers.nvim_prog
+local set_session = helpers.set_session
 
 describe('startup defaults', function()
   describe(':filetype', function()
@@ -160,20 +163,43 @@ describe('startup defaults', function()
     end)
   end)
 
-  describe("'packpath'", function()
-    it('defaults to &runtimepath', function()
-      eq(meths.get_option('runtimepath'), meths.get_option('packpath'))
-    end)
+  it("'shadafile' ('viminfofile')", function()
+    -- Cannot use clear() because we do not want "-i NONE".
+    local function clear_use_default_shada()
+      set_session(spawn({nvim_prog, '-u', 'NONE', '--embed', '--headless'},
+                         false,
+                         {XDG_DATA_HOME='Xtest-userdata',
+                          XDG_CONFIG_HOME='Xtest-userconfig'}))
+    end
+    clear_use_default_shada()
+    -- Default 'shadafile' is empty.
+    -- This means use the default location. :help shada-file-name
+    eq('', meths.get_option('shadafile'))
+    eq('', meths.get_option('viminfofile'))
+    -- Check that shada data (such as v:oldfiles) is saved/restored.
+    command('edit foo')
+    command('write')
+    local f = eval('fnamemodify(@%,":p")')
+    assert(string.len(f) > 3)
+    command('qall')
+    clear_use_default_shada()
+    eq({ f }, eval('v:oldfiles'))
+  end)
 
-    it('does not follow modifications to runtimepath', function()
-      meths.command('set runtimepath+=foo')
-      neq(meths.get_option('runtimepath'), meths.get_option('packpath'))
-      meths.command('set packpath+=foo')
-      eq(meths.get_option('runtimepath'), meths.get_option('packpath'))
-    end)
+  it("'packpath'", function()
+    clear()
+    -- Defaults to &runtimepath.
+    eq(meths.get_option('runtimepath'), meths.get_option('packpath'))
+
+    -- Does not follow modifications to runtimepath.
+    meths.command('set runtimepath+=foo')
+    neq(meths.get_option('runtimepath'), meths.get_option('packpath'))
+    meths.command('set packpath+=foo')
+    eq(meths.get_option('runtimepath'), meths.get_option('packpath'))
   end)
 
   it('v:progpath is set to the absolute path', function()
+    clear()
     eq(eval("fnamemodify(v:progpath, ':p')"), eval('v:progpath'))
   end)