1 files changed, 52 insertions, 7 deletions
diff --git a/test/old/testdir/test_preview.vim b/test/old/testdir/test_preview.vim
index b7b908e761..422c50ac77 100644
--- a/test/old/testdir/test_preview.vim
+++ b/test/old/testdir/test_preview.vim
@@ -15,6 +15,20 @@ func Test_Psearch()
   bwipe
 endfunc
 
+func s:goto_preview_and_close()
+  " Go to the preview window
+  wincmd P
+  call assert_equal(1, &previewwindow)
+  call assert_equal('preview', win_gettype())
+
+  " Close preview window
+  wincmd z
+  call assert_equal(1, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call assert_fails('wincmd P', 'E441:')
+endfunc
+
 func Test_window_preview()
   CheckFeature quickfix
 
@@ -23,17 +37,48 @@ func Test_window_preview()
   call assert_equal(2, winnr('$'))
   call assert_equal(0, &previewwindow)
 
-  " Go to the preview window
-  wincmd P
-  call assert_equal(1, &previewwindow)
-  call assert_equal('preview', win_gettype())
+  call s:goto_preview_and_close()
+endfunc
+
+func Test_window_preview_from_pbuffer()
+  CheckFeature quickfix
+
+  call writefile(['/* some C code */'], 'Xpreview.c', 'D')
+  edit Xpreview.c
+  const buf_num = bufnr('%')
+  enew
+
+  call feedkeys(":pbuffer Xpre\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"pbuffer Xpreview.c", @:)
 
-  " Close preview window
-  wincmd z
   call assert_equal(1, winnr('$'))
+  exe 'pbuffer ' .  buf_num
+  call assert_equal(2, winnr('$'))
   call assert_equal(0, &previewwindow)
 
-  call assert_fails('wincmd P', 'E441:')
+  call s:goto_preview_and_close()
+
+  call assert_equal(1, winnr('$'))
+  pbuffer Xpreview.c
+  call assert_equal(2, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call s:goto_preview_and_close()
+endfunc
+
+func Test_window_preview_terminal()
+  CheckFeature quickfix
+  " CheckFeature terminal
+
+  " term ++curwin
+  term
+  const buf_num = bufnr('$')
+  call assert_equal(1, winnr('$'))
+  exe 'pbuffer' . buf_num
+  call assert_equal(2, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call s:goto_preview_and_close()
 endfunc
 
 func Test_window_preview_from_help()