mirror of
https://github.com/neovim/neovim.git
synced 2025-09-06 03:18:16 +00:00
9cc346119b
Problem: [security]: stack-buffer-overflow in option callback functions
Solution: pass size of errbuf down the call stack, use snprintf()
instead of sprintf()
We pass the error buffer down to the option callback functions, but in
some parts of the code, we simply use sprintf(buf) to write into the error
buffer, which can overflow.
So let's pass down the length of the error buffer and use sprintf(buf, size)
instead.
Reported by @henices, thanks!
b39b240c38
Co-authored-by: Christian Brabandt <cb@256bit.org>
805 lines
40 KiB
Lua
805 lines
40 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local Screen = require('test.functional.ui.screen')
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local clear = helpers.clear
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local command = helpers.command
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local exec = helpers.exec
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local feed = helpers.feed
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local meths = helpers.meths
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local nvim_dir = helpers.nvim_dir
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local assert_alive = helpers.assert_alive
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before_each(clear)
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describe('messages', function()
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local screen
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-- oldtest: Test_warning_scroll()
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it('a warning causes scrolling if and only if it has a stacktrace', function()
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screen = Screen.new(75, 6)
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screen:set_default_attr_ids({
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[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
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[1] = {bold = true, foreground = Screen.colors.SeaGreen}, -- MoreMsg
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[2] = {bold = true, reverse = true}, -- MsgSeparator
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[3] = {foreground = Screen.colors.Red}, -- WarningMsg
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})
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screen:attach()
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-- When the warning comes from a script, messages are scrolled so that the
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-- stacktrace is visible.
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-- It is a bit hard to assert the screen when sourcing a script, so skip this part.
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-- When the warning does not come from a script, messages are not scrolled.
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command('enew')
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command('set readonly')
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feed('u')
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screen:expect({grid = [[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{3:W10: Warning: Changing a readonly file}^ |
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]], timeout = 500})
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screen:expect([[
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^ |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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Already at oldest change |
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]])
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end)
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-- oldtest: Test_message_not_cleared_after_mode()
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it('clearing mode does not remove message', function()
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screen = Screen.new(60, 10)
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screen:set_default_attr_ids({
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[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
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[1] = {background = Screen.colors.Red, foreground = Screen.colors.White}, -- ErrorMsg
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})
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screen:attach()
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exec([[
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nmap <silent> gx :call DebugSilent('normal')<CR>
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vmap <silent> gx :call DebugSilent('visual')<CR>
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function DebugSilent(arg)
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echomsg "from DebugSilent" a:arg
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endfunction
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set showmode
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set cmdheight=1
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call setline(1, ['one', 'NoSuchFile', 'three'])
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]])
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feed('gx')
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screen:expect([[
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^one |
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NoSuchFile |
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three |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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from DebugSilent normal |
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]])
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-- removing the mode message used to also clear the intended message
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feed('vEgx')
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screen:expect([[
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^one |
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NoSuchFile |
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three |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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from DebugSilent visual |
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]])
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-- removing the mode message used to also clear the error message
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command('set cmdheight=2')
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feed('2GvEgf')
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screen:expect([[
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one |
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NoSuchFil^e |
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three |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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from DebugSilent visual |
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{1:E447: Can't find file "NoSuchFile" in path} |
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]])
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end)
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describe('more prompt', function()
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before_each(function()
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command('set more')
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end)
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-- oldtest: Test_message_more()
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it('works', function()
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screen = Screen.new(75, 6)
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screen:set_default_attr_ids({
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[1] = {bold = true, foreground = Screen.colors.SeaGreen}, -- MoreMsg
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[2] = {foreground = Screen.colors.Brown}, -- LineNr
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})
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screen:attach()
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command('call setline(1, range(1, 100))')
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feed(':%pfoo<C-H><C-H><C-H>#')
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screen:expect([[
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1 |
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2 |
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3 |
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4 |
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5 |
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:%p#^ |
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]])
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feed('\n')
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screen:expect([[
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{1:-- More --}^ |
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]])
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feed('?')
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screen:expect([[
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{1:-- More -- SPACE/d/j: screen/page/line down, b/u/k: up, q: quit }^ |
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]])
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-- Down a line with j, <CR>, <NL> or <Down>.
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feed('j')
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screen:expect([[
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{2: 6 }6 |
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{1:-- More --}^ |
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]])
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feed('<NL>')
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screen:expect([[
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{2: 6 }6 |
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{2: 7 }7 |
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{1:-- More --}^ |
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]])
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feed('<CR>')
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screen:expect([[
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{2: 4 }4 |
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{2: 5 }5 |
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{2: 6 }6 |
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{2: 7 }7 |
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{2: 8 }8 |
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{1:-- More --}^ |
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]])
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feed('<Down>')
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screen:expect([[
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{2: 5 }5 |
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{2: 6 }6 |
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{2: 7 }7 |
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{2: 8 }8 |
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{2: 9 }9 |
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{1:-- More --}^ |
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]])
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-- Down a screen with <Space>, f, or <PageDown>.
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feed('f')
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screen:expect([[
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{2: 10 }10 |
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{2: 11 }11 |
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{2: 12 }12 |
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{2: 13 }13 |
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{2: 14 }14 |
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{1:-- More --}^ |
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]])
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feed('<Space>')
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screen:expect([[
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{2: 15 }15 |
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{2: 16 }16 |
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{2: 17 }17 |
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{2: 18 }18 |
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{2: 19 }19 |
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{1:-- More --}^ |
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]])
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feed('<PageDown>')
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screen:expect([[
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{2: 20 }20 |
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{2: 21 }21 |
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{2: 22 }22 |
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{2: 23 }23 |
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{2: 24 }24 |
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{1:-- More --}^ |
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]])
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-- Down a page (half a screen) with d.
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feed('d')
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screen:expect([[
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{2: 23 }23 |
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{2: 24 }24 |
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{2: 25 }25 |
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{2: 26 }26 |
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{2: 27 }27 |
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{1:-- More --}^ |
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]])
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-- Down all the way with 'G'.
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feed('G')
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screen:expect([[
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{2: 96 }96 |
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{2: 97 }97 |
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{2: 98 }98 |
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{2: 99 }99 |
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{2:100 }100 |
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{1:Press ENTER or type command to continue}^ |
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]])
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-- Up a line k, <BS> or <Up>.
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feed('k')
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screen:expect([[
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{2: 95 }95 |
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{2: 96 }96 |
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{2: 97 }97 |
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{2: 98 }98 |
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{2: 99 }99 |
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{1:-- More --}^ |
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]])
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feed('<BS>')
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screen:expect([[
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{2: 94 }94 |
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{2: 95 }95 |
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{2: 96 }96 |
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{2: 97 }97 |
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{2: 98 }98 |
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{1:-- More --}^ |
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]])
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feed('<Up>')
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screen:expect([[
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{2: 93 }93 |
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{2: 94 }94 |
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{2: 95 }95 |
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{2: 96 }96 |
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{2: 97 }97 |
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{1:-- More --}^ |
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]])
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-- Up a screen with b or <PageUp>.
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feed('b')
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screen:expect([[
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{2: 88 }88 |
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{2: 89 }89 |
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{2: 90 }90 |
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{2: 91 }91 |
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{2: 92 }92 |
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{1:-- More --}^ |
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]])
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feed('<PageUp>')
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screen:expect([[
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{2: 83 }83 |
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{2: 84 }84 |
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{2: 85 }85 |
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{2: 86 }86 |
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{2: 87 }87 |
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{1:-- More --}^ |
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]])
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-- Up a page (half a screen) with u.
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feed('u')
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screen:expect([[
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{2: 80 }80 |
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{2: 81 }81 |
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{2: 82 }82 |
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{2: 83 }83 |
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{2: 84 }84 |
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{1:-- More --}^ |
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]])
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-- Up all the way with 'g'.
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feed('g')
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screen:expect([[
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:%p# |
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{1:-- More --}^ |
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]])
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-- All the way down. Pressing f should do nothing but pressing
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-- space should end the more prompt.
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feed('G')
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screen:expect([[
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{2: 96 }96 |
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{2: 97 }97 |
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{2: 98 }98 |
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{2: 99 }99 |
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{2:100 }100 |
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{1:Press ENTER or type command to continue}^ |
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]])
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feed('f')
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screen:expect_unchanged()
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feed('<Space>')
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screen:expect([[
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96 |
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97 |
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98 |
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99 |
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^100 |
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]])
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-- Pressing g< shows the previous command output.
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feed('g<lt>')
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screen:expect([[
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{2: 96 }96 |
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{2: 97 }97 |
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{2: 98 }98 |
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{2: 99 }99 |
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{2:100 }100 |
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{1:Press ENTER or type command to continue}^ |
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]])
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-- A command line that doesn't print text is appended to scrollback,
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-- even if it invokes a nested command line.
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feed([[:<C-R>=':'<CR>:<CR>g<lt>]])
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screen:expect([[
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{2: 97 }97 |
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{2: 98 }98 |
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{2: 99 }99 |
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{2:100 }100 |
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::: |
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{1:Press ENTER or type command to continue}^ |
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]])
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feed(':%p#\n')
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screen:expect([[
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{1:-- More --}^ |
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]])
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-- Stop command output with q, <Esc> or CTRL-C.
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feed('q')
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screen:expect([[
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96 |
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97 |
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98 |
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99 |
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^100 |
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]])
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-- Execute a : command from the more prompt
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feed(':%p#\n')
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screen:expect([[
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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{1:-- More --}^ |
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]])
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feed(':')
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screen:expect([[
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{2: 1 }1 |
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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:^ |
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]])
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feed("echo 'Hello'\n")
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screen:expect([[
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{2: 2 }2 |
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{2: 3 }3 |
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{2: 4 }4 |
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{2: 5 }5 |
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Hello |
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{1:Press ENTER or type command to continue}^ |
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]])
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end)
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-- oldtest: Test_echo_verbose_system()
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it('verbose message before echo command', function()
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screen = Screen.new(60, 10)
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screen:set_default_attr_ids({
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[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
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[1] = {bold = true, foreground = Screen.colors.SeaGreen}, -- MoreMsg
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})
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screen:attach()
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command('cd '..nvim_dir)
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meths.set_option_value('shell', './shell-test', {})
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meths.set_option_value('shellcmdflag', 'REP 20', {})
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meths.set_option_value('shellxquote', '', {}) -- win: avoid extra quotes
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-- display a page and go back, results in exactly the same view
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feed([[:4 verbose echo system('foo')<CR>]])
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screen:expect([[
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Executing command: "'./shell-test' 'REP' '20' 'foo'" |
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0: foo |
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1: foo |
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2: foo |
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3: foo |
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4: foo |
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5: foo |
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6: foo |
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{1:-- More --}^ |
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]])
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feed('<Space>')
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screen:expect([[
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7: foo |
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8: foo |
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9: foo |
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10: foo |
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11: foo |
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12: foo |
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13: foo |
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14: foo |
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15: foo |
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{1:-- More --}^ |
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]])
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feed('b')
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screen:expect([[
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Executing command: "'./shell-test' 'REP' '20' 'foo'" |
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0: foo |
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1: foo |
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2: foo |
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3: foo |
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4: foo |
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5: foo |
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6: foo |
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{1:-- More --}^ |
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]])
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-- do the same with 'cmdheight' set to 2
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feed('q')
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command('set ch=2')
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command('mode') -- FIXME: bottom is invalid after scrolling
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screen:expect([[
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^ |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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]])
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feed([[:4 verbose echo system('foo')<CR>]])
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screen:expect([[
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Executing command: "'./shell-test' 'REP' '20' 'foo'" |
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0: foo |
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1: foo |
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2: foo |
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3: foo |
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4: foo |
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5: foo |
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6: foo |
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{1:-- More --}^ |
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]])
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feed('<Space>')
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screen:expect([[
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7: foo |
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8: foo |
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9: foo |
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10: foo |
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11: foo |
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12: foo |
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13: foo |
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14: foo |
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15: foo |
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{1:-- More --}^ |
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]])
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feed('b')
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screen:expect([[
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Executing command: "'./shell-test' 'REP' '20' 'foo'" |
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0: foo |
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1: foo |
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2: foo |
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3: foo |
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4: foo |
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5: foo |
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6: foo |
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{1:-- More --}^ |
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]])
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end)
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|
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-- oldtest: Test_quit_long_message()
|
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it('with control characters can be quit vim-patch:8.2.1844', function()
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screen = Screen.new(40, 10)
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screen:set_default_attr_ids({
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[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
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[1] = {bold = true, foreground = Screen.colors.SeaGreen}, -- MoreMsg
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[2] = {foreground = Screen.colors.Blue}, -- SpecialKey
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})
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screen:attach()
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feed([[:echom range(9999)->join("\x01")<CR>]])
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screen:expect([[
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0{2:^A}1{2:^A}2{2:^A}3{2:^A}4{2:^A}5{2:^A}6{2:^A}7{2:^A}8{2:^A}9{2:^A}10{2:^A}11{2:^A}12|
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{2:^A}13{2:^A}14{2:^A}15{2:^A}16{2:^A}17{2:^A}18{2:^A}19{2:^A}20{2:^A}21{2:^A}22|
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|
{2:^A}23{2:^A}24{2:^A}25{2:^A}26{2:^A}27{2:^A}28{2:^A}29{2:^A}30{2:^A}31{2:^A}32|
|
|
{2:^A}33{2:^A}34{2:^A}35{2:^A}36{2:^A}37{2:^A}38{2:^A}39{2:^A}40{2:^A}41{2:^A}42|
|
|
{2:^A}43{2:^A}44{2:^A}45{2:^A}46{2:^A}47{2:^A}48{2:^A}49{2:^A}50{2:^A}51{2:^A}52|
|
|
{2:^A}53{2:^A}54{2:^A}55{2:^A}56{2:^A}57{2:^A}58{2:^A}59{2:^A}60{2:^A}61{2:^A}62|
|
|
{2:^A}63{2:^A}64{2:^A}65{2:^A}66{2:^A}67{2:^A}68{2:^A}69{2:^A}70{2:^A}71{2:^A}72|
|
|
{2:^A}73{2:^A}74{2:^A}75{2:^A}76{2:^A}77{2:^A}78{2:^A}79{2:^A}80{2:^A}81{2:^A}82|
|
|
{2:^A}83{2:^A}84{2:^A}85{2:^A}86{2:^A}87{2:^A}88{2:^A}89{2:^A}90{2:^A}91{2:^A}92|
|
|
{1:-- More --}^ |
|
|
]])
|
|
feed('q')
|
|
screen:expect([[
|
|
^ |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
|
|
|
]])
|
|
end)
|
|
end)
|
|
|
|
describe('mode is cleared when', function()
|
|
before_each(function()
|
|
screen = Screen.new(40, 6)
|
|
screen:set_default_attr_ids({
|
|
[1] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
|
|
[2] = {bold = true}, -- ModeMsg
|
|
[3] = {bold = true, reverse=true}, -- StatusLine
|
|
})
|
|
screen:attach()
|
|
end)
|
|
|
|
-- oldtest: Test_mode_message_at_leaving_insert_by_ctrl_c()
|
|
it('leaving Insert mode with Ctrl-C vim-patch:8.1.1189', function()
|
|
exec([[
|
|
func StatusLine() abort
|
|
return ""
|
|
endfunc
|
|
set statusline=%!StatusLine()
|
|
set laststatus=2
|
|
]])
|
|
feed('i')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{3: }|
|
|
{2:-- INSERT --} |
|
|
]])
|
|
feed('<C-C>')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{3: }|
|
|
|
|
|
]])
|
|
end)
|
|
|
|
-- oldtest: Test_mode_message_at_leaving_insert_with_esc_mapped()
|
|
it('leaving Insert mode with ESC in the middle of a mapping vim-patch:8.1.1192', function()
|
|
exec([[
|
|
set laststatus=2
|
|
inoremap <Esc> <Esc>00
|
|
]])
|
|
feed('i')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{3:[No Name] }|
|
|
{2:-- INSERT --} |
|
|
]])
|
|
feed('<Esc>')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{3:[No Name] }|
|
|
|
|
|
]])
|
|
end)
|
|
|
|
-- oldtest: Test_mode_updated_after_ctrl_c()
|
|
it('pressing Ctrl-C in i_CTRL-O', function()
|
|
feed('i<C-O>')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{2:-- (insert) --} |
|
|
]])
|
|
feed('<C-C>')
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
|
|
|
]])
|
|
end)
|
|
end)
|
|
|
|
-- oldtest: Test_ask_yesno()
|
|
it('y/n prompt works', function()
|
|
screen = Screen.new(75, 6)
|
|
screen:set_default_attr_ids({
|
|
[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
|
|
[1] = {bold = true, foreground = Screen.colors.SeaGreen}, -- MoreMsg
|
|
[2] = {bold = true, reverse = true}, -- MsgSeparator
|
|
})
|
|
screen:attach()
|
|
command('set noincsearch nohlsearch inccommand=')
|
|
command('call setline(1, range(1, 2))')
|
|
|
|
feed(':2,1s/^/n/\n')
|
|
screen:expect([[
|
|
1 |
|
|
2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}^ |
|
|
]])
|
|
feed('n')
|
|
screen:expect([[
|
|
^1 |
|
|
2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}n |
|
|
]])
|
|
|
|
feed(':2,1s/^/Esc/\n')
|
|
screen:expect([[
|
|
1 |
|
|
2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}^ |
|
|
]])
|
|
feed('<Esc>')
|
|
screen:expect([[
|
|
^1 |
|
|
2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}n |
|
|
]])
|
|
|
|
feed(':2,1s/^/y/\n')
|
|
screen:expect([[
|
|
1 |
|
|
2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}^ |
|
|
]])
|
|
feed('y')
|
|
screen:expect([[
|
|
y1 |
|
|
^y2 |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{1:Backwards range given, OK to swap (y/n)?}y |
|
|
]])
|
|
end)
|
|
|
|
-- oldtest: Test_fileinfo_tabpage_cmdheight()
|
|
it("fileinfo works when 'cmdheight' has just decreased", function()
|
|
screen = Screen.new(40, 6)
|
|
screen:set_default_attr_ids({
|
|
[0] = {bold = true, foreground = Screen.colors.Blue}; -- NonText
|
|
[1] = {bold = true}; -- TabLineSel
|
|
[2] = {underline = true, background = Screen.colors.LightGrey}; -- TabLine
|
|
[3] = {reverse = true}; -- TabLineFill
|
|
})
|
|
screen:attach()
|
|
|
|
exec([[
|
|
set shortmess-=o
|
|
set shortmess-=O
|
|
set shortmess-=F
|
|
tabnew
|
|
set cmdheight=2
|
|
]])
|
|
command('mode') -- FIXME: bottom is invalid after scrolling
|
|
screen:expect([[
|
|
{2: [No Name] }{1: [No Name] }{3: }{2:X}|
|
|
^ |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
|
|
|
|
|
|
]])
|
|
|
|
feed(':tabprev | edit Xfileinfo.txt<CR>')
|
|
screen:expect([[
|
|
{1: Xfileinfo.txt }{2: [No Name] }{3: }{2:X}|
|
|
^ |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
"Xfileinfo.txt" [New] |
|
|
]])
|
|
assert_alive()
|
|
end)
|
|
|
|
-- oldtest: Test_fileinfo_after_echo()
|
|
it('fileinfo does not overwrite echo message vim-patch:8.2.4156', function()
|
|
screen = Screen.new(40, 6)
|
|
screen:set_default_attr_ids({
|
|
[0] = {bold = true, foreground = Screen.colors.Blue}, -- NonText
|
|
})
|
|
screen:attach()
|
|
|
|
exec([[
|
|
set shortmess-=F
|
|
|
|
file a.txt
|
|
|
|
hide edit b.txt
|
|
call setline(1, "hi")
|
|
setlocal modified
|
|
|
|
hide buffer a.txt
|
|
|
|
autocmd CursorHold * buf b.txt | w | echo "'b' written"
|
|
]])
|
|
|
|
command('set updatetime=50')
|
|
feed('0$')
|
|
screen:expect([[
|
|
^hi |
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
{0:~ }|
|
|
'b' written |
|
|
]])
|
|
os.remove('b.txt')
|
|
end)
|
|
end)
|