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https://github.com/neovim/neovim.git
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74751117eb
- redraw! in an invisible buffer rendered the screen unusable. - storing the autocmd window handle and using it in API function could lead to crashes. Unregister the handle when the window is not active.
264 lines
9.3 KiB
Lua
264 lines
9.3 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 dedent = helpers.dedent
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local eq = helpers.eq
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local eval = helpers.eval
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local feed = helpers.feed
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local clear = helpers.clear
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local meths = helpers.meths
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local meth_pcall = helpers.meth_pcall
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local funcs = helpers.funcs
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local expect = helpers.expect
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local command = helpers.command
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local exc_exec = helpers.exc_exec
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local curbufmeths = helpers.curbufmeths
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local source = helpers.source
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describe('autocmd', function()
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before_each(clear)
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it(':tabnew triggers events in the correct order', function()
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local expected = {
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'WinLeave',
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'TabLeave',
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'WinEnter',
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'TabNew',
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'TabEnter',
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'BufLeave',
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'BufEnter'
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}
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command('let g:foo = []')
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command('autocmd BufEnter * :call add(g:foo, "BufEnter")')
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command('autocmd BufLeave * :call add(g:foo, "BufLeave")')
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command('autocmd TabEnter * :call add(g:foo, "TabEnter")')
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command('autocmd TabLeave * :call add(g:foo, "TabLeave")')
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command('autocmd TabNew * :call add(g:foo, "TabNew")')
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command('autocmd WinEnter * :call add(g:foo, "WinEnter")')
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command('autocmd WinLeave * :call add(g:foo, "WinLeave")')
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command('tabnew')
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assert.same(expected, eval('g:foo'))
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end)
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it('v:vim_did_enter is 1 after VimEnter', function()
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eq(1, eval('v:vim_did_enter'))
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end)
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describe('BufLeave autocommand', function()
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it('can wipe out the buffer created by :edit which triggered autocmd',
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function()
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meths.set_option('hidden', true)
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curbufmeths.set_lines(0, 1, false, {
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'start of test file xx',
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'end of test file xx'})
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command('autocmd BufLeave * bwipeout yy')
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eq('Vim(edit):E143: Autocommands unexpectedly deleted new buffer yy',
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exc_exec('edit yy'))
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expect([[
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start of test file xx
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end of test file xx]])
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end)
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end)
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it('++once', function() -- :help autocmd-once
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--
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-- ":autocmd ... ++once" executes its handler once, then removes the handler.
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--
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local expected = {
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'Many1',
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'Once1',
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'Once2',
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'Many2',
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'Once3',
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'Many1',
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'Many2',
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'Many1',
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'Many2',
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}
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command('let g:foo = []')
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command('autocmd TabNew * :call add(g:foo, "Many1")')
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command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
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command('autocmd TabNew * ++once :call add(g:foo, "Once2")')
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command('autocmd TabNew * :call add(g:foo, "Many2")')
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command('autocmd TabNew * ++once :call add(g:foo, "Once3")')
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eq(dedent([[
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--- Autocommands ---
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TabNew
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* :call add(g:foo, "Many1")
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:call add(g:foo, "Once1")
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:call add(g:foo, "Once2")
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:call add(g:foo, "Many2")
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:call add(g:foo, "Once3")]]),
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funcs.execute('autocmd Tabnew'))
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command('tabnew')
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command('tabnew')
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command('tabnew')
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eq(expected, eval('g:foo'))
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eq(dedent([[
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--- Autocommands ---
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TabNew
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* :call add(g:foo, "Many1")
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:call add(g:foo, "Many2")]]),
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funcs.execute('autocmd Tabnew'))
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--
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-- ":autocmd ... ++once" handlers can be deleted.
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--
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expected = {}
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command('let g:foo = []')
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command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
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command('autocmd! TabNew')
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command('tabnew')
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eq(expected, eval('g:foo'))
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--
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-- ":autocmd ... <buffer> ++once ++nested"
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--
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expected = {
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'OptionSet-Once',
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'CursorMoved-Once',
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}
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command('let g:foo = []')
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command('autocmd OptionSet binary ++nested ++once :call add(g:foo, "OptionSet-Once")')
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command('autocmd CursorMoved <buffer> ++once ++nested setlocal binary|:call add(g:foo, "CursorMoved-Once")')
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command("put ='foo bar baz'")
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feed('0llhlh')
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eq(expected, eval('g:foo'))
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--
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-- :autocmd should not show empty section after ++once handlers expire.
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--
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expected = {
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'Once1',
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'Once2',
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}
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command('let g:foo = []')
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command('autocmd! TabNew') -- Clear all TabNew handlers.
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command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
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command('autocmd TabNew * ++once :call add(g:foo, "Once2")')
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command('tabnew')
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eq(expected, eval('g:foo'))
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eq(dedent([[
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--- Autocommands ---]]),
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funcs.execute('autocmd Tabnew'))
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end)
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it('window works', function()
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-- Nvim uses a special window to execute certain actions for an invisible buffer,
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-- internally called autcmd_win and mentioned in the docs at :help E813
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-- Do some safety checks for redrawing and api accesses to this window.
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local screen = Screen.new(50, 10)
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screen:attach()
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screen:set_default_attr_ids({
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[1] = {bold = true, foreground = Screen.colors.Blue1},
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[2] = {background = Screen.colors.LightMagenta},
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[3] = {background = Screen.colors.LightMagenta, bold = true, foreground = Screen.colors.Blue1},
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})
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source([[
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function! Doit()
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let g:winid = nvim_get_current_win()
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redraw!
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echo getchar()
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" API functions work when aucmd_win is in scope
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let g:had_value = has_key(w:, "testvar")
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call nvim_win_set_var(g:winid, "testvar", 7)
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let g:test = w:testvar
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endfunction
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set hidden
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" add dummy text to not discard the buffer
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call setline(1,"bb")
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autocmd User <buffer> call Doit()
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]])
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screen:expect([[
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^bb |
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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]])
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feed(":enew | doautoall User<cr>")
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screen:expect([[
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{2:bb }|
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{3:~ }|
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{3:~ }|
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{3:~ }|
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{3:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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^:enew | doautoall User |
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]])
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feed('<cr>')
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screen:expect([[
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^ |
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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13 |
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]])
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eq(7, eval('g:test'))
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-- API calls are blocked when aucmd_win is not in scope
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eq({false, 'Vim(call):Invalid window id'},
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meth_pcall(command, "call nvim_set_current_win(g:winid)"))
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-- second time aucmd_win is needed, a different code path is invoked
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-- to reuse the same window, so check again
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command("let g:test = v:null")
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command("let g:had_value = v:null")
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feed(":doautoall User<cr>")
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screen:expect([[
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{2:bb }|
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{3:~ }|
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{3:~ }|
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{3:~ }|
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{3:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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^:doautoall User |
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]])
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feed('<cr>')
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screen:expect([[
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^ |
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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13 |
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]])
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-- win vars in aucmd_win should have been reset
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eq(0, eval('g:had_value'))
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eq(7, eval('g:test'))
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eq({false, 'Vim(call):Invalid window id'},
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meth_pcall(command, "call nvim_set_current_win(g:winid)"))
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end)
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end)
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