commit 3a7503c34c65ed15cc08deb5b54aaf2ea51525b4
author Bram Moolenaar <Bram@vim.org> Mon Jun 07 18:29:17 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Mon Jun 07 18:29:17 2021 +0200
tree daa9ac7e436c54459ab4971578929dc0b30779be
parent f05d2fc539c389c3b8142d9fb06fb0443de14902

patch 8.2.2957: using getchar() in Vim9 script is problematic

Problem:    Using getchar() in Vim9 script is problematic.
Solution:   Add getcharstr(). (closes #8343)

src/testdir/test_functions.vim

diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 023da66..1309554 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -1729,6 +1729,13 @@
 func Test_getchar()
   call feedkeys('a', '')
   call assert_equal(char2nr('a'), getchar())
+  call assert_equal(0, getchar(0))
+  call assert_equal(0, getchar(1))
+
+  call feedkeys('a', '')
+  call assert_equal('a', getcharstr())
+  call assert_equal('', getcharstr(0))
+  call assert_equal('', getcharstr(1))
 
   call setline(1, 'xxxx')
   call test_setmouse(1, 3)