1 files changed, 106 insertions, 0 deletions
diff --git a/mnv/src/testdir/test_preview.mnv b/mnv/src/testdir/test_preview.mnv
new file mode 100644
index 0000000000..9bd4c85a1e
--- /dev/null
+++ b/mnv/src/testdir/test_preview.mnv
@@ -0,0 +1,106 @@
+" Tests for the preview window
+
+CheckFeature quickfix
+
+func Test_Psearch()
+  " this used to cause ml_get errors
+  help
+  let wincount = winnr('$')
+  0f
+  ps.
+  call assert_equal(wincount + 1, winnr('$'))
+  pclose
+  call assert_equal(wincount, winnr('$'))
+  bwipe
+endfunc
+
+func s:goto_preview_and_close()
+  " Go to the preview window
+  wincmd P
+  call assert_equal(1, &previewwindow)
+  call assert_equal('preview', win_gettype())
+
+  " Close preview window
+  wincmd z
+  call assert_equal(1, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call assert_fails('wincmd P', 'E441:')
+endfunc
+
+func Test_window_preview()
+  CheckFeature quickfix
+
+  " Open a preview window
+  pedit Xa
+  call assert_equal(2, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call s:goto_preview_and_close()
+endfunc
+
+func Test_window_preview_from_pbuffer()
+  CheckFeature quickfix
+
+  call writefile(['/* some C code */'], 'Xpreview.c', 'D')
+  edit Xpreview.c
+  const buf_num = bufnr('%')
+  enew
+
+  call feedkeys(":pbuffer Xpre\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"pbuffer Xpreview.c", @:)
+
+  call assert_equal(1, winnr('$'))
+  exe 'pbuffer ' .  buf_num
+  call assert_equal(2, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call s:goto_preview_and_close()
+
+  call assert_equal(1, winnr('$'))
+  pbuffer Xpreview.c
+  call assert_equal(2, winnr('$'))
+  call assert_equal(0, &previewwindow)
+
+  call s:goto_preview_and_close()
+endfunc
+
+func Test_window_preview_terminal()
+  CheckFeature quickfix
+  CheckFeature terminal
+
+  term ++curwin
+  const buf_num = bufnr('$')
+  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()
+  CheckFeature quickfix
+
+  filetype on
+  call writefile(['/* some C code */'], 'Xpreview.c', 'D')
+  help
+  pedit Xpreview.c
+  wincmd P
+  call assert_equal(1, &previewwindow)
+  call assert_equal('c', &filetype)
+  wincmd z
+
+  filetype off
+  close
+endfunc
+
+func Test_multiple_preview_windows()
+  new
+  set previewwindow
+  new
+  call assert_fails('set previewwindow', 'E590:')
+  %bw!
+endfunc
+
+" mnv: shiftwidth=2 sts=2 expandtab