[RFC] vim-patch:7.4.2011, vim-patch:7.4.2012, vim-patch:7.4.2066 #5106

vim-patch:7.4.2011

Problem:    It is not easy to get a list of command arguments.
Solution:   Add getcompletion(). (Yegappan Lakshmanan)

https://github.com/vim/vim/commit/aa4d73235bf4deee167aa5314b89ae3d3db334b7

vim-patch:7.4.2012

Problem:    Test for getcompletion() does not pass on all systems.
Solution:   Only test what is supported.

https://github.com/vim/vim/commit/0d3e24be5686c0710aa3c6671e4c626d6cb21a5f

vim-patch:7.4.2066

Problem:    getcompletion() not well tested.
Solution:   Add more testing.

https://github.com/vim/vim/commit/c1fb763184c8ae82300357867fa2070aa94366e9

2 files changed, 121 insertions, 0 deletions

diff --git a/src/nvim/testdir/test_alot.vim b/src/nvim/testdir/test_alot.vim
index 14ea73818a..30b8a9ceb8 100644
--- a/src/nvim/testdir/test_alot.vim
+++ b/src/nvim/testdir/test_alot.vim
@@ -3,6 +3,7 @@
 
 source test_assign.vim
 source test_cursor_func.vim
+source test_cmdline.vim
 source test_menu.vim
 source test_popup.vim
 source test_unlet.vim
diff --git a/src/nvim/testdir/test_cmdline.vim b/src/nvim/testdir/test_cmdline.vim
new file mode 100644
index 0000000000..438b20cc5e
--- /dev/null
+++ b/src/nvim/testdir/test_cmdline.vim
@@ -0,0 +1,120 @@
+" Tests for editing the command line.
+
+func Test_complete_tab()
+  call writefile(['testfile'], 'Xtestfile')
+  call feedkeys(":e Xtest\t\r", "tx")
+  call assert_equal('testfile', getline(1))
+  call delete('Xtestfile')
+endfunc
+
+func Test_complete_list()
+  " We can't see the output, but at least we check the code runs properly.
+  call feedkeys(":e test\<C-D>\r", "tx")
+  call assert_equal('test', expand('%:t'))
+endfunc
+
+func Test_complete_wildmenu()
+  call writefile(['testfile1'], 'Xtestfile1')
+  call writefile(['testfile2'], 'Xtestfile2')
+  set wildmenu
+  call feedkeys(":e Xtest\t\t\r", "tx")
+  call assert_equal('testfile2', getline(1))
+
+  call delete('Xtestfile1')
+  call delete('Xtestfile2')
+  set nowildmenu
+endfunc
+
+func Test_getcompletion()
+  if !has('cmdline_compl')
+    return
+  endif
+  let groupcount = len(getcompletion('', 'event'))
+  call assert_true(groupcount > 0)
+  let matchcount = len(getcompletion('File', 'event'))
+  call assert_true(matchcount > 0)
+  call assert_true(groupcount > matchcount)
+
+  if has('menu')
+    source $VIMRUNTIME/menu.vim
+    let matchcount = len(getcompletion('', 'menu'))
+    call assert_true(matchcount > 0)
+    call assert_equal(['File.'], getcompletion('File', 'menu'))
+    call assert_true(matchcount > 0)
+    let matchcount = len(getcompletion('File.', 'menu'))
+    call assert_true(matchcount > 0)
+  endif
+
+  let l = getcompletion('v:n', 'var')
+  call assert_true(index(l, 'v:null') >= 0)
+
+  let l = getcompletion('', 'augroup')
+  call assert_true(index(l, 'END') >= 0)
+
+  let l = getcompletion('', 'behave')
+  call assert_true(index(l, 'mswin') >= 0)
+
+  let l = getcompletion('', 'color')
+  call assert_true(index(l, 'default') >= 0)
+
+  let l = getcompletion('', 'command')
+  call assert_true(index(l, 'sleep') >= 0)
+
+  let l = getcompletion('', 'dir')
+  call assert_true(index(l, 'sautest') >= 0)
+
+  let l = getcompletion('exe', 'expression')
+  call assert_true(index(l, 'executable(') >= 0)
+
+  let l = getcompletion('tag', 'function')
+  call assert_true(index(l, 'taglist(') >= 0)
+
+  let l = getcompletion('run', 'file')
+  call assert_true(index(l, 'runtest.vim') >= 0)
+
+  let l = getcompletion('ha', 'filetype')
+  call assert_true(index(l, 'hamster') >= 0)
+
+  let l = getcompletion('z', 'syntax')
+  call assert_true(index(l, 'zimbu') >= 0)
+
+  let l = getcompletion('jikes', 'compiler')
+  call assert_true(index(l, 'jikes') >= 0)
+
+  let l = getcompletion('time', 'option')
+  call assert_true(index(l, 'timeoutlen') >= 0)
+
+  let l = getcompletion('er', 'highlight')
+  call assert_true(index(l, 'ErrorMsg') >= 0)
+
+  " For others test if the name is recognized.
+  let names = ['buffer', 'environment', 'file_in_path',
+	\ 'mapping', 'shellcmd', 'tag', 'tag_listfiles', 'user']
+  if has('cscope')
+    call add(names, 'cscope')
+  endif
+  if has('cmdline_hist')
+    call add(names, 'history')
+  endif
+  if has('gettext')
+    call add(names, 'locale')
+  endif
+  if has('profile')
+    call add(names, 'syntime')
+  endif
+  if has('signs')
+    call add(names, 'sign')
+  endif
+
+  set tags=Xtags
+  call writefile(["!_TAG_FILE_ENCODING\tutf-8\t//", "word\tfile\tcmd"], 'Xtags')
+
+  for name in names
+    let matchcount = len(getcompletion('', name))
+    call assert_true(matchcount >= 0, 'No matches for ' . name)
+  endfor
+
+  call delete('Xtags')
+
+  call assert_fails('call getcompletion("", "burp")', 'E475:')
+endfunc