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3e78319ac6
Nvim doesn't expect a window-changing command on an created-window event.
autocmd WinNew * wincmd p
help help
- A snapshot for window 1000 is created.
- The window is split and the cursor changes to the new window 1001.
- The autocmd kicks in and switches back to 1000.
- The help buffer is opened.
- On closing the help window 1000, it tries to go back to the snapshotted window
which is... 1000.
- wp1000->w_buffer == NULL
- w_buffer is used by check_cursor()
- 🧨 -> 💥
Fixes https://github.com/neovim/neovim/issues/9773
28 lines
762 B
Lua
28 lines
762 B
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local command = helpers.command
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local eq = helpers.eq
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local funcs = helpers.funcs
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describe(':help', function()
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before_each(clear)
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it('window closed makes cursor return to a valid win/buf #9773', function()
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command('help help')
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eq(1001, funcs.win_getid())
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command('quit')
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eq(1000, funcs.win_getid())
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command('autocmd WinNew * wincmd p')
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command('help help')
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-- Window 1002 is opened, but the autocmd switches back to 1000 and
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-- creates the help buffer there instead.
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eq(1000, funcs.win_getid())
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command('quit')
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-- Before #9773, Nvim would crash on quitting the help window.
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eq(1002, funcs.win_getid())
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end)
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end)
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