diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 03778f8..d483b74 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -2368,19 +2368,23 @@
   exe 'bwipe ' .. buf2
   call assert_equal(0, bufexists(buf2))
 
-  " when 'buftype' is "nofile" then bufload() does not read the file
-  bwipe! XotherName
-  let buf = bufadd('XotherName')
-  call setbufvar(buf, '&bt', 'nofile')
-  call bufload(buf)
-  call assert_equal([''], getbufline(buf, 1, '$'))
-
-  " when 'buftype' is "acwrite" then bufload() DOES read the file
-  bwipe! XotherName
-  let buf = bufadd('XotherName')
-  call setbufvar(buf, '&bt', 'acwrite')
-  call bufload(buf)
-  call assert_equal(['some', 'text'], getbufline(buf, 1, '$'))
+  " When 'buftype' is "nofile" then bufload() does not read the file.
+  " Other values too.
+  for val in [['nofile', 0],
+            \ ['nowrite', 1],
+            \ ['acwrite', 1],
+            \ ['quickfix', 0],
+            \ ['help', 1],
+            \ ['terminal', 0],
+            \ ['prompt', 0],
+            \ ['popup', 0],
+            \ ]
+    bwipe! XotherName
+    let buf = bufadd('XotherName')
+    call setbufvar(buf, '&bt', val[0])
+    call bufload(buf)
+    call assert_equal(val[1] ? ['some', 'text'] : [''], getbufline(buf, 1, '$'), val[0])
+  endfor
 
   bwipe someName
   bwipe XotherName