From 32105ae88f3aa6a6af30336f0bc9f8eb81292cd7 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 27 Mar 2021 18:59:25 +0100
Subject: patch 8.2.2664: Vim9: not enough function arguments checked for
 string

Problem:    Vim9: not enough function arguments checked for string.
Solution:   Check in balloon functions.  Refactor function arguments.
---
 src/testdir/test_vim9_builtin.vim | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src/testdir/test_vim9_builtin.vim')

diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index 25db01288f..766a5bcfbc 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -125,6 +125,19 @@ def Test_append()
   assert_equal(['0', 'one', '1', 'two', '2'], getline(1, 6))
 enddef
 
+def Test_balloon_show()
+  CheckGui
+  CheckFeature balloon_eval
+
+  assert_fails('balloon_show(true)', 'E1174:')
+enddef
+
+def Test_balloon_split()
+  CheckFeature balloon_eval
+
+  assert_fails('balloon_split(true)', 'E1174:')
+enddef
+
 def Test_browse()
   CheckFeature browse
 
@@ -142,9 +155,14 @@ def Test_browse()
   CheckDefExecAndScriptFailure(lines, 'E1174: String required for argument 4')
 enddef
 
+def Test_bufexists()
+  assert_fails('bufexists(true)', 'E1174')
+enddef
+
 def Test_buflisted()
   var res: bool = buflisted('asdf')
   assert_equal(false, res)
+  assert_fails('buflisted(true)', 'E1174')
 enddef
 
 def Test_bufname()
@@ -176,6 +194,8 @@ def Test_bufwinid()
   only
   bwipe SomeFile
   bwipe OtherFile
+
+  assert_fails('bufwinid(true)', 'E1138')
 enddef
 
 def Test_call_call()
-- 
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