neovim

commit 9115f665559777d1016af20f094c51e0eeff444c
parent 3b562535c323292637a53d36d9bd341feea2f2c6
Author: zeertzjq <zeertzjq@outlook.com>
Date:   Wed, 12 Oct 2022 11:35:47 +0800

test: add a test for #20605

Diffstat:
M
test/functional/ui/screen_basic_spec.lua
 | 
33
+++++++++++++++++++++++++++++++++

1 file changed, 33 insertions(+), 0 deletions(-)
diff --git a/test/functional/ui/screen_basic_spec.lua b/test/functional/ui/screen_basic_spec.lua
@@ -1027,3 +1027,36 @@ describe('Screen default colors', function()
     end}
   end)
 end)
+
+it('CTRL-F or CTRL-B scrolls a page after UI attach/resize #20605', function()
+  clear()
+  local screen = Screen.new(100, 100)
+  screen:attach()
+  eq(100, meths.get_option('lines'))
+  eq(99, meths.get_option('window'))
+  eq(99, meths.win_get_height(0))
+  feed('1000o<Esc>')
+  eq(903, funcs.line('w0'))
+  feed('<C-B>')
+  eq(806, funcs.line('w0'))
+  feed('<C-B>')
+  eq(709, funcs.line('w0'))
+  feed('<C-F>')
+  eq(806, funcs.line('w0'))
+  feed('<C-F>')
+  eq(903, funcs.line('w0'))
+  feed('G')
+  screen:try_resize(50, 50)
+  eq(50, meths.get_option('lines'))
+  eq(49, meths.get_option('window'))
+  eq(49, meths.win_get_height(0))
+  eq(953, funcs.line('w0'))
+  feed('<C-B>')
+  eq(906, funcs.line('w0'))
+  feed('<C-B>')
+  eq(859, funcs.line('w0'))
+  feed('<C-F>')
+  eq(906, funcs.line('w0'))
+  feed('<C-F>')
+  eq(953, funcs.line('w0'))
+end)