Add noinsert and noselect features in completeopt #2564

Backported from vim_dev:
https://groups.google.com/forum/#!searchin/vim_dev/completeopt/vim_dev/tVsk0pdOGvs/fCzBbPkA4w0J

Use case:
https://github.com/Shougo/neocomplcache.vim/issues/426

Reviewed-by: Felipe Morales <hel.sheep@gmail.com>
Reviewed-by: Scott Prager <splinterofchaos@gmail.com>
Reviewed-by: Michael Reed <m.reed@mykolab.com>

1 files changed, 24 insertions, 2 deletions

diff --git a/test/functional/viml/completion_spec.lua b/test/functional/viml/completion_spec.lua
index df4018e707..2a02dd9cf0 100644
--- a/test/functional/viml/completion_spec.lua
+++ b/test/functional/viml/completion_spec.lua
@@ -3,12 +3,12 @@ local clear, feed, execute = helpers.clear, helpers.feed, helpers.execute
 local eval, eq, neq = helpers.eval, helpers.eq, helpers.neq
 local execute, source = helpers.execute, helpers.source
 
-describe("completion", function()
+describe('completion', function()
   before_each(function()
     clear()
   end)
 
-  describe("v:completed_item", function()
+  describe('v:completed_item', function()
     it('returns expected dict in normal completion', function()
       feed('ifoo<ESC>o<C-x><C-n><ESC>')
       eq('foo', eval('getline(2)'))
@@ -53,4 +53,26 @@ describe("completion", function()
         eval('v:completed_item'))
     end)
   end)
+  describe('completeopt', function()
+    it('inserts the first candidate if default', function()
+      execute('set completeopt+=menuone')
+      feed('ifoo<ESC>o<C-x><C-n>bar<ESC>')
+      eq('foobar', eval('getline(2)'))
+    end)
+    it('selects the first candidate if noinsert', function()
+      execute('set completeopt+=menuone,noinsert')
+      feed('ifoo<ESC>o<C-x><C-n><C-y><ESC>')
+      eq('foo', eval('getline(2)'))
+    end)
+    it('does not insert the first candidate if noselect', function()
+      execute('set completeopt+=menuone,noselect')
+      feed('ifoo<ESC>o<C-x><C-n>bar<ESC>')
+      eq('bar', eval('getline(2)'))
+    end)
+    it('does not select/insert the first candidate if noselect and noinsert', function()
+      execute('set completeopt+=menuone,noselect,noinsert')
+      feed('ifoo<ESC>o<C-x><C-n><ESC>')
+      eq('', eval('getline(2)'))
+    end)
+  end)
 end)