diff --git a/src/testdir/gen_opt_test.vim b/src/testdir/gen_opt_test.vim
index 83f43f7..a552160 100644
--- a/src/testdir/gen_opt_test.vim
+++ b/src/testdir/gen_opt_test.vim
@@ -27,7 +27,7 @@
 " Two lists with values: values that work and values that fail.
 " When not listed, "othernum" or "otherstring" is used.
 let test_values = {
-      \ 'cmdheight': [[1, 2, 10], [-1, 0]],
+      \ 'cmdheight': [[0, 1, 2, 10], [-1]],
       \ 'cmdwinheight': [[1, 2, 10], [-1, 0]],
       \ 'columns': [[12, 80], [-1, 0, 10]],
       \ 'conceallevel': [[0, 1, 2, 3], [-1, 4, 99]],
diff --git a/src/testdir/test_messages.vim b/src/testdir/test_messages.vim
index acdbe18..ea5aee1 100644
--- a/src/testdir/test_messages.vim
+++ b/src/testdir/test_messages.vim
@@ -387,4 +387,51 @@
   call delete('b.txt')
 endfunc
 
+func Test_cmdheight_zero()
+  set cmdheight=0
+  set showcmd
+  redraw!
+
+  echo 'test echo'
+  call assert_equal(116, screenchar(&lines, 1))
+  redraw!
+
+  echomsg 'test echomsg'
+  call assert_equal(116, screenchar(&lines, 1))
+  redraw!
+
+  call feedkeys(":ls\<CR>", "xt")
+  call assert_equal(':ls', Screenline(&lines - 1))
+  redraw!
+
+  let char = getchar(0)
+  call assert_match(char, 0)
+
+  " Check change/restore cmdheight when macro
+  call feedkeys("qa", "xt")
+  call assert_equal(&cmdheight, 1)
+  call feedkeys("q", "xt")
+  call assert_equal(&cmdheight, 0)
+
+  call setline(1, 'somestring')
+  call feedkeys("y", "n")
+  %s/somestring/otherstring/gc
+  call assert_equal(getline(1), 'otherstring')
+
+  call feedkeys("g\<C-g>", "xt")
+  call assert_match(
+        \ 'Col 1 of 11; Line 1 of 1; Word 1 of 1',
+        \ Screenline(&lines))
+
+  " Check split behavior
+  for i in range(1, 10)
+    split
+  endfor
+  only
+  call assert_equal(&cmdheight, 0)
+
+  set cmdheight&
+  set showcmd&
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
index 47988b2..cfa5b63 100644
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -1481,9 +1481,12 @@
     call assert_equal(h0, winheight(0))
     call assert_equal(1, &cmdheight)
   endfor
+  " supports cmdheight=0
+  set cmdheight=0
   call assert_true(win_move_statusline(0, 1))
-  call assert_equal(h0, winheight(0))
-  call assert_equal(1, &cmdheight)
+  call assert_equal(h0 + 1, winheight(0))
+  call assert_equal(0, &cmdheight)
+  set cmdheight&
   " check win_move_statusline from bottom window on top window ID
   let id = win_getid(1)
   for offset in range(5)