" Tests for maparg(), mapcheck() and mapset().
" Also test utf8 map with a 0x80 byte.
" Also test mapcheck()

func s:SID()     
  return str2nr(matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$'))
endfunc

func Test_maparg()
  new
  set cpo-=<
  set encoding=utf8
  " Test maparg() with a string result
  let sid = s:SID()
  let lnum = expand('<sflnum>')
  map foo<C-V> is<F4>foo
  vnoremap <script> <buffer> <expr> <silent> bar isbar
  call assert_equal("is<F4>foo", maparg('foo<C-V>'))
  call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'foo<C-V>',
        \ 'lhsraw': "foo\x80\xfc\x04V", 'lhsrawalt': "foo\x16",
        \ 'mode': ' ', 'nowait': 0, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 
	\ 'rhs': 'is<F4>foo', 'buffer': 0},
	\ maparg('foo<C-V>', '', 0, 1))
  call assert_equal({'silent': 1, 'noremap': 1, 'script': 1, 'lhs': 'bar',
        \ 'lhsraw': 'bar', 'mode': 'v',
        \ 'nowait': 0, 'expr': 1, 'sid': sid, 'lnum': lnum + 2,
	\ 'rhs': 'isbar', 'buffer': 1},
        \ 'bar'->maparg('', 0, 1))
  let lnum = expand('<sflnum>')
  map <buffer> <nowait> foo bar
  call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'foo',
        \ 'lhsraw': 'foo', 'mode': ' ',
        \ 'nowait': 1, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 'rhs': 'bar',
	\ 'buffer': 1},
        \ maparg('foo', '', 0, 1))
  let lnum = expand('<sflnum>')
  tmap baz foo
  call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'baz',
        \ 'lhsraw': 'baz', 'mode': 't',
        \ 'nowait': 0, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 'rhs': 'foo',
	\ 'buffer': 0},
        \ maparg('baz', 't', 0, 1))

  map abc x<char-114>x
  call assert_equal("xrx", maparg('abc'))
  map abc y<S-char-114>y
  call assert_equal("yRy", maparg('abc'))

  omap { w
  let d = maparg('{', 'o', 0, 1)
  call assert_equal(['{', 'w', 'o'], [d.lhs, d.rhs, d.mode])
  ounmap {

  lmap { w
  let d = maparg('{', 'l', 0, 1)
  call assert_equal(['{', 'w', 'l'], [d.lhs, d.rhs, d.mode])
  lunmap {

  nmap { w
  let d = maparg('{', 'n', 0, 1)
  call assert_equal(['{', 'w', 'n'], [d.lhs, d.rhs, d.mode])
  nunmap {

  xmap { w
  let d = maparg('{', 'x', 0, 1)
  call assert_equal(['{', 'w', 'x'], [d.lhs, d.rhs, d.mode])
  xunmap {

  smap { w
  let d = maparg('{', 's', 0, 1)
  call assert_equal(['{', 'w', 's'], [d.lhs, d.rhs, d.mode])
  sunmap {

  map abc <Nop>
  call assert_equal("<Nop>", maparg('abc'))
  unmap abc

  call feedkeys(":abbr esc \<C-V>\<C-V>\<C-V>\<C-V>\<C-V>\<Esc>\<CR>", "xt")
  let d = maparg('esc', 'i', 1, 1)
  call assert_equal(['esc', "\<C-V>\<C-V>\<Esc>", '!'], [d.lhs, d.rhs, d.mode])
  abclear
endfunc

def Test_vim9_maparg()
  nmap { w
  let one: string = maparg('{')
  assert_equal('w', one)
  let two: string = maparg('{', 'n')
  assert_equal('w', two)
  let three: string = maparg('{', 'n', 0)
  assert_equal('w', three)
  let four: dict<any> = maparg('{', 'n', 0, 1)
  call assert_equal(['{', 'w', 'n'], [four.lhs, four.rhs, four.mode])
  nunmap {
enddef

func Test_mapcheck()
  call assert_equal('', mapcheck('a'))
  call assert_equal('', mapcheck('abc'))
  call assert_equal('', mapcheck('ax'))
  call assert_equal('', mapcheck('b'))

  map a something
  call assert_equal('something', mapcheck('a'))
  call assert_equal('something', mapcheck('a', 'n'))
  call assert_equal('', mapcheck('a', 'c'))
  call assert_equal('', mapcheck('a', 'i'))
  call assert_equal('something', 'abc'->mapcheck())
  call assert_equal('something', 'ax'->mapcheck())
  call assert_equal('', mapcheck('b'))
  unmap a

  map ab foobar
  call assert_equal('foobar', mapcheck('a'))
  call assert_equal('foobar', mapcheck('abc'))
  call assert_equal('', mapcheck('ax'))
  call assert_equal('', mapcheck('b'))
  unmap ab

  map abc barfoo
  call assert_equal('barfoo', mapcheck('a'))
  call assert_equal('barfoo', mapcheck('a', 'n', 0))
  call assert_equal('', mapcheck('a', 'n', 1))
  call assert_equal('barfoo', mapcheck('abc'))
  call assert_equal('', mapcheck('ax'))
  call assert_equal('', mapcheck('b'))
  unmap abc

  abbr ab abbrev
  call assert_equal('abbrev', mapcheck('a', 'i', 1))
  call assert_equal('', mapcheck('a', 'n', 1))
  call assert_equal('', mapcheck('a', 'i', 0))
  unabbr ab
endfunc

func Test_range_map()
  new
  " Outside of the range, minimum
  inoremap <Char-0x1040> a
  execute "normal a\u1040\<Esc>"
  " Inside of the range, minimum
  inoremap <Char-0x103f> b
  execute "normal a\u103f\<Esc>"
  " Inside of the range, maximum
  inoremap <Char-0xf03f> c
  execute "normal a\uf03f\<Esc>"
  " Outside of the range, maximum
  inoremap <Char-0xf040> d
  execute "normal a\uf040\<Esc>"
  call assert_equal("abcd", getline(1))
endfunc

func One_mapset_test(keys)
  exe 'nnoremap ' .. a:keys .. ' original<CR>'
  let orig = maparg(a:keys, 'n', 0, 1)
  call assert_equal(a:keys, orig.lhs)
  call assert_equal('original<CR>', orig.rhs)
  call assert_equal('n', orig.mode)

  exe 'nunmap ' .. a:keys
  let d = maparg(a:keys, 'n', 0, 1)
  call assert_equal({}, d)

  call mapset('n', 0, orig)
  let d = maparg(a:keys, 'n', 0, 1)
  call assert_equal(a:keys, d.lhs)
  call assert_equal('original<CR>', d.rhs)
  call assert_equal('n', d.mode)

  exe 'nunmap ' .. a:keys
endfunc

func Test_mapset()
  call One_mapset_test('K')
  call One_mapset_test('<F3>')

  " Check <> key conversion
  new
  inoremap K one<Left>x
  call feedkeys("iK\<Esc>", 'xt')
  call assert_equal('onxe', getline(1))

  let orig = maparg('K', 'i', 0, 1)
  call assert_equal('K', orig.lhs)
  call assert_equal('one<Left>x', orig.rhs)
  call assert_equal('i', orig.mode)

  iunmap K
  let d = maparg('K', 'i', 0, 1)
  call assert_equal({}, d)

  call mapset('i', 0, orig)
  call feedkeys("SK\<Esc>", 'xt')
  call assert_equal('onxe', getline(1))

  iunmap K

  " Test literal <CR> using a backslash
  let cpo_save = &cpo
  set cpo-=B
  inoremap K one\<CR>two
  call feedkeys("SK\<Esc>", 'xt')
  call assert_equal('one<CR>two', getline(1))

  let orig = maparg('K', 'i', 0, 1)
  call assert_equal('K', orig.lhs)
  call assert_equal('one\<CR>two', orig.rhs)
  call assert_equal('i', orig.mode)

  iunmap K
  let d = maparg('K', 'i', 0, 1)
  call assert_equal({}, d)

  call mapset('i', 0, orig)
  call feedkeys("SK\<Esc>", 'xt')
  call assert_equal('one<CR>two', getline(1))

  iunmap K

  " Test literal <CR> using CTRL-V
  inoremap K one<CR>two
  call feedkeys("SK\<Esc>", 'xt')
  call assert_equal('one<CR>two', getline(1))

  let orig = maparg('K', 'i', 0, 1)
  call assert_equal('K', orig.lhs)
  call assert_equal("one\x16<CR>two", orig.rhs)
  call assert_equal('i', orig.mode)

  iunmap K
  let d = maparg('K', 'i', 0, 1)
  call assert_equal({}, d)

  call mapset('i', 0, orig)
  call feedkeys("SK\<Esc>", 'xt')
  call assert_equal('one<CR>two', getline(1))

  iunmap K
  let &cpo = cpo_save
  bwipe!
endfunc

func Check_ctrlb_map(d, check_alt)
  call assert_equal('<C-B>', a:d.lhs)
  if a:check_alt
    call assert_equal("\x80\xfc\x04B", a:d.lhsraw)
    call assert_equal("\x02", a:d.lhsrawalt)
  else
    call assert_equal("\x02", a:d.lhsraw)
  endif
endfunc

func Test_map_restore()
  " Test restoring map with alternate keycode
  nmap <C-B> back
  let d = maparg('<C-B>', 'n', 0, 1)
  call Check_ctrlb_map(d, 1)
  let dsimp = maparg("\x02", 'n', 0, 1)
  call Check_ctrlb_map(dsimp, 0)
  nunmap <C-B>
  call mapset('n', 0, d)
  let d = maparg('<C-B>', 'n', 0, 1)
  call Check_ctrlb_map(d, 1)
  let dsimp = maparg("\x02", 'n', 0, 1)
  call Check_ctrlb_map(dsimp, 0)

  nunmap <C-B>

endfunc

" vim: shiftwidth=2 sts=2 expandtab