patch 8.0.1482: using feedkeys() does not work to test completion

Problem:    Using feedkeys() does not work to test Insert mode completion.
            (Lifepillar)
Solution:   Do not check for typed keys when executing :normal or feedkeys().
            Fix thesaurus completion not working when 'complete' is empty.

Author: brammool

src/edit.c

@@ -1454,7 +1454,8 @@ edit(
 	    /* if 'complete' is empty then plain ^P is no longer special,
 	     * but it is under other ^X modes */
 	    if (*curbuf->b_p_cpt == NUL
-		    && ctrl_x_mode != 0
+		    && (ctrl_x_mode == CTRL_X_NORMAL
+			|| ctrl_x_mode == CTRL_X_WHOLE_LINE)
 		    && !(compl_cont_status & CONT_LOCAL))
 		goto normalchar;
 
@@ -1568,8 +1569,8 @@ edit(
 	/* If typed something may trigger CursorHoldI again. */
 	if (c != K_CURSORHOLD
 # ifdef FEAT_COMPL_FUNC
-	    /* but not in CTRL-X mode, a script can't restore the state */
-	    && ctrl_x_mode == 0
+		/* but not in CTRL-X mode, a script can't restore the state */
+		&& ctrl_x_mode == CTRL_X_NORMAL
 # endif
 	       )
 	    did_cursorhold = FALSE;
@@ -1582,7 +1583,7 @@ edit(
 #ifdef FEAT_CINDENT
 	if (can_cindent && cindent_on()
 # ifdef FEAT_INS_EXPAND
-		&& ctrl_x_mode == 0
+		&& ctrl_x_mode == CTRL_X_NORMAL
 # endif
 	   )
 	{
@@ -5020,12 +5021,12 @@ ins_compl_next(
 ins_compl_check_keys(int frequency, int in_compl_func)
 {
     static int	count = 0;
+    int		c;
 
-    int	    c;
-
-    /* Don't check when reading keys from a script.  That would break the test
-     * scripts */
-    if (using_script())
+    /* Don't check when reading keys from a script, :normal or feedkeys().
+     * That would break the test scripts.  But do check for keys when called
+     * from complete_check(). */
+    if (!in_compl_func && (using_script() || ex_normal_busy))
 	return;
 
     /* Only do this at regular intervals */

src/testdir/test_edit.vim

@@ -631,11 +631,11 @@ func! Test_edit_CTRL_L()
   call feedkeys("cct\<c-x>\<c-l>\<c-n>\<esc>", 'tnix')
   call assert_equal(['one', 'two', 'three', 't', '', '', ''], getline(1, '$'))
   call feedkeys("cct\<c-x>\<c-l>\<c-n>\<c-n>\<esc>", 'tnix')
-  call assert_equal(['one', 'two', 'three', 't', '', '', ''], getline(1, '$'))
-  call feedkeys("cct\<c-x>\<c-l>\<c-n>\<c-n>\<c-n>\<esc>", 'tnix')
   call assert_equal(['one', 'two', 'three', 'two', '', '', ''], getline(1, '$'))
-  call feedkeys("cct\<c-x>\<c-l>\<c-n>\<c-n>\<c-n>\<c-n>\<esc>", 'tnix')
+  call feedkeys("cct\<c-x>\<c-l>\<c-n>\<c-n>\<c-n>\<esc>", 'tnix')
   call assert_equal(['one', 'two', 'three', 'three', '', '', ''], getline(1, '$'))
+  call feedkeys("cct\<c-x>\<c-l>\<c-n>\<c-n>\<c-n>\<c-n>\<esc>", 'tnix')
+  call assert_equal(['one', 'two', 'three', 't', '', '', ''], getline(1, '$'))
   call feedkeys("cct\<c-x>\<c-l>\<c-p>\<esc>", 'tnix')
   call assert_equal(['one', 'two', 'three', 'two', '', '', ''], getline(1, '$'))
   call feedkeys("cct\<c-x>\<c-l>\<c-p>\<c-p>\<esc>", 'tnix')
@@ -1357,7 +1357,6 @@ func Test_edit_complete_very_long_name()
   let save_columns = &columns
   " Need at least about 1100 columns to reproduce the problem.
   set columns=2000
-  call assert_equal(2000, &columns)
   set noswapfile
 
   let longfilename = longdirname . '/' . repeat('a', 255)

src/testdir/test_ins_complete.vim

@@ -116,3 +116,14 @@ func Test_omni_dash()
   delfunc Omni
   set omnifunc=
 endfunc
+
+" Check that when using feedkeys() typeahead does not interrupt searching for
+" completions.
+func Test_compl_feedkeys()
+  new
+  set completeopt=menuone,noselect
+  call feedkeys("ajump ju\<C-X>\<C-N>\<C-P>\<ESC>", "tx")
+  call assert_equal("jump jump", getline(1))
+  bwipe!
+  set completeopt&
+endfunc

src/testdir/test_popup.vim

@@ -693,7 +693,7 @@ func Test_popup_and_preview_autocommand()
   norm! gt
   call assert_equal(0, &previewwindow)
   norm! gT
-  call assert_equal(12, tabpagenr('$'))
+  call assert_equal(10, tabpagenr('$'))
   tabonly
   pclose
   augroup MyBufAdd

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1482,
 /**/
     1481,
 /**/