patch 8.2.1901: variable completion does not work in command line windowv8.2.1901

Problem:    Variable completion does not work in command line window.
Solution:   Use the "prevwin". (closes #7198)

1 files changed, 25 insertions, 0 deletions

diff --git a/src/testdir/test_ins_complete.vim b/src/testdir/test_ins_complete.vim
index 005e14caf0..8c676e22a9 100644
--- a/src/testdir/test_ins_complete.vim
+++ b/src/testdir/test_ins_complete.vim
@@ -346,7 +346,10 @@ func Test_compl_in_cmdwin()
   set wildmenu wildchar=<Tab>
   com! -nargs=1 -complete=command GetInput let input = <q-args>
   com! -buffer TestCommand echo 'TestCommand'
+  let w:test_winvar = 'winvar'
+  let b:test_bufvar = 'bufvar'
 
+  " User-defined commands
   let input = ''
   call feedkeys("q:iGetInput T\<C-x>\<C-v>\<CR>", 'tx!')
   call assert_equal('TestCommand', input)
@@ -355,8 +358,30 @@ func Test_compl_in_cmdwin()
   call feedkeys("q::GetInput T\<Tab>\<CR>:q\<CR>", 'tx!')
   call assert_equal('T', input)
 
+
+  com! -nargs=1 -complete=var GetInput let input = <q-args>
+  " Window-local variables
+  let input = ''
+  call feedkeys("q:iGetInput w:test_\<C-x>\<C-v>\<CR>", 'tx!')
+  call assert_equal('w:test_winvar', input)
+
+  let input = ''
+  call feedkeys("q::GetInput w:test_\<Tab>\<CR>:q\<CR>", 'tx!')
+  call assert_equal('w:test_', input)
+
+  " Buffer-local variables
+  let input = ''
+  call feedkeys("q:iGetInput b:test_\<C-x>\<C-v>\<CR>", 'tx!')
+  call assert_equal('b:test_bufvar', input)
+
+  let input = ''
+  call feedkeys("q::GetInput b:test_\<Tab>\<CR>:q\<CR>", 'tx!')
+  call assert_equal('b:test_', input)
+
   delcom TestCommand
   delcom GetInput
+  unlet w:test_winvar
+  unlet b:test_bufvar
   set wildmenu& wildchar&
 endfunc