neovim/src/nvim/testdir/test_mapping.vim

" Tests for mappings and abbreviations

if !has('multi_byte')
  finish
endif

func Test_abbreviation()
  " abbreviation with 0x80 should work
  inoreab чкпр   vim
  call feedkeys("Goчкпр \<Esc>", "xt")
  call assert_equal('vim ', getline('$'))
  iunab чкпр
  set nomodified
endfunc

func Test_map_ctrl_c_insert()
  " mapping of ctrl-c in Insert mode
  set cpo-=< cpo-=k
  inoremap <c-c> <ctrl-c>
  cnoremap <c-c> dummy
  cunmap <c-c>
  call feedkeys("GoTEST2: CTRL-C |\<C-C>A|\<Esc>", "xt")
  call assert_equal('TEST2: CTRL-C |<ctrl-c>A|', getline('$'))
  unmap! <c-c>
  set nomodified
endfunc

func Test_map_ctrl_c_visual()
  " mapping of ctrl-c in Visual mode
  vnoremap <c-c> :<C-u>$put ='vmap works'
  call feedkeys("GV\<C-C>\<CR>", "xt")
  call assert_equal('vmap works', getline('$'))
  vunmap <c-c>
  set nomodified
endfunc

func Test_map_langmap()
  if !has('langmap')
    return
  endif

  " check langmap applies in normal mode
  set langmap=+- nolangremap
  new
  call setline(1, ['a', 'b', 'c'])
  2
  call assert_equal('b', getline('.'))
  call feedkeys("+", "xt")
  call assert_equal('a', getline('.'))

  " check no remapping
  map x +
  2
  call feedkeys("x", "xt")
  call assert_equal('c', getline('.'))

  " check with remapping
  set langremap
  2
  call feedkeys("x", "xt")
  call assert_equal('a', getline('.'))

  unmap x
  bwipe!

  " 'langnoremap' follows 'langremap' and vise versa
  set langremap
  set langnoremap
  call assert_equal(0, &langremap)
  set langremap
  call assert_equal(0, &langnoremap)
  set nolangremap
  call assert_equal(1, &langnoremap)

  " langmap should not apply in insert mode, 'langremap' doesn't matter
  set langmap=+{ nolangremap
  call feedkeys("Go+\<Esc>", "xt")
  call assert_equal('+', getline('$'))
  set langmap=+{ langremap
  call feedkeys("Go+\<Esc>", "xt")
  call assert_equal('+', getline('$'))

  " langmap used for register name in insert mode.
  call setreg('a', 'aaaa')
  call setreg('b', 'bbbb')
  call setreg('c', 'cccc')
  set langmap=ab langremap
  call feedkeys("Go\<C-R>a\<Esc>", "xt")
  call assert_equal('bbbb', getline('$'))
  call feedkeys("Go\<C-R>\<C-R>a\<Esc>", "xt")
  call assert_equal('bbbb', getline('$'))
  " mapping does not apply
  imap c a
  call feedkeys("Go\<C-R>c\<Esc>", "xt")
  call assert_equal('cccc', getline('$'))
  imap a c
  call feedkeys("Go\<C-R>a\<Esc>", "xt")
  call assert_equal('bbbb', getline('$'))
 
  " langmap should not apply in Command-line mode
  set langmap=+{ nolangremap
  call feedkeys(":call append(line('$'), '+')\<CR>", "xt")
  call assert_equal('+', getline('$'))

  set nomodified
endfunc

func Test_map_feedkeys()
  " issue #212 (feedkeys insert mapping at current position)
  nnoremap . :call feedkeys(".", "in")<cr>
  call setline('$', ['a b c d', 'a b c d'])
  $-1
  call feedkeys("0qqdw.ifoo\<Esc>qj0@q\<Esc>", "xt")
  call assert_equal(['fooc d', 'fooc d'], getline(line('$') - 1, line('$')))
  unmap .
  set nomodified
endfunc

func Test_map_cursor()
  " <c-g>U<cursor> works only within a single line
  imapclear
  imap ( ()<c-g>U<left>
  call feedkeys("G2o\<Esc>ki\<CR>Test1: text with a (here some more text\<Esc>k.", "xt")
  call assert_equal('Test1: text with a (here some more text)', getline(line('$') - 2))
  call assert_equal('Test1: text with a (here some more text)', getline(line('$') - 1))

  " test undo
  call feedkeys("G2o\<Esc>ki\<CR>Test2: text wit a (here some more text [und undo]\<C-G>u\<Esc>k.u", "xt")
  call assert_equal('', getline(line('$') - 2))
  call assert_equal('Test2: text wit a (here some more text [und undo])', getline(line('$') - 1))
  set nomodified
  imapclear
endfunc

" This isn't actually testing a mapping, but similar use of CTRL-G U as above.
func Test_break_undo()
  :set whichwrap=<,>,[,]
  call feedkeys("G4o2k", "xt")
  exe ":norm! iTest3: text with a (parenthesis here\<C-G>U\<Right>new line here\<esc>\<up>\<up>."
  call assert_equal('new line here', getline(line('$') - 3))
  call assert_equal('Test3: text with a (parenthesis here', getline(line('$') - 2))
  call assert_equal('new line here', getline(line('$') - 1))
  set nomodified
endfunc