Add a test

src/testdir/test_normal.vim

@@ -3998,4 +3998,33 @@ func Test_normal_j_below_botline()
   call StopVimInTerminal(buf)
 endfunc
 
+" Test for r (replace) command with CTRL_V and CTRL_Q
+func Test_normal_r_ctrl_v_cmd()
+  new
+  call append(0, 'This is a simple test: abcd')
+  exe "norm! 1gg$r\<C-V>\<C-V>"
+  call assert_equal(['This is a simple test: abc', ''], getline(1,'$'))
+  exe "norm! 1gg$hr\<C-Q>\<C-Q>"
+  call assert_equal(['This is a simple test: ab', ''], getline(1,'$'))
+  exe "norm! 1gg$2hr\<C-V>x7e"
+  call assert_equal(['This is a simple test: a~', ''], getline(1,'$'))
+  exe "norm! 1gg$3hr\<C-Q>x7e"
+  call assert_equal(['This is a simple test: ~~', ''], getline(1,'$'))
+
+  if &encoding == 'utf-8'
+    exe "norm! 1gg$4hr\<C-V>u20ac"
+    call assert_equal(['This is a simple test:€~~', ''], getline(1,'$'))
+    exe "norm! 1gg$5hr\<C-Q>u20ac"
+    call assert_equal(['This is a simple test€€~~', ''], getline(1,'$'))
+    exe "norm! 1gg0R\<C-V>xff WAS  \<esc>"
+    call assert_equal(['ÿ WAS   a simple test€€~~', ''], getline(1,'$'))
+    exe "norm! 1gg0elR\<C-Q>xffNOT\<esc>"
+    call assert_equal(['ÿ WASÿNOT simple test€€~~', ''], getline(1,'$'))
+  endif
+
+
+  " clean up
+  bw!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab