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local helpers = require('test.functional.helpers')(after_each)
local dedent = helpers.dedent
local eq = helpers.eq
local eval = helpers.eval
local feed = helpers.feed
local clear = helpers.clear
local meths = helpers.meths
local funcs = helpers.funcs
local expect = helpers.expect
local command = helpers.command
local exc_exec = helpers.exc_exec
local curbufmeths = helpers.curbufmeths
describe('autocmd', function()
before_each(clear)
it(':tabnew triggers events in the correct order', function()
local expected = {
'WinLeave',
'TabLeave',
'WinEnter',
'TabNew',
'TabEnter',
'BufLeave',
'BufEnter'
}
command('let g:foo = []')
command('autocmd BufEnter * :call add(g:foo, "BufEnter")')
command('autocmd BufLeave * :call add(g:foo, "BufLeave")')
command('autocmd TabEnter * :call add(g:foo, "TabEnter")')
command('autocmd TabLeave * :call add(g:foo, "TabLeave")')
command('autocmd TabNew * :call add(g:foo, "TabNew")')
command('autocmd WinEnter * :call add(g:foo, "WinEnter")')
command('autocmd WinLeave * :call add(g:foo, "WinLeave")')
command('tabnew')
assert.same(expected, eval('g:foo'))
end)
it('v:vim_did_enter is 1 after VimEnter', function()
eq(1, eval('v:vim_did_enter'))
end)
describe('BufLeave autocommand', function()
it('can wipe out the buffer created by :edit which triggered autocmd',
function()
meths.set_option('hidden', true)
curbufmeths.set_lines(0, 1, false, {
'start of test file xx',
'end of test file xx'})
command('autocmd BufLeave * bwipeout yy')
eq('Vim(edit):E143: Autocommands unexpectedly deleted new buffer yy',
exc_exec('edit yy'))
expect([[
start of test file xx
end of test file xx]])
end)
end)
it('++once', function() -- :help autocmd-once
--
-- ":autocmd ... ++once" executes its handler once, then removes the handler.
--
local expected = {
'Many1',
'Once1',
'Once2',
'Many2',
'Once3',
'Many1',
'Many2',
'Many1',
'Many2',
}
command('let g:foo = []')
command('autocmd TabNew * :call add(g:foo, "Many1")')
command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
command('autocmd TabNew * ++once :call add(g:foo, "Once2")')
command('autocmd TabNew * :call add(g:foo, "Many2")')
command('autocmd TabNew * ++once :call add(g:foo, "Once3")')
eq(dedent([[
--- Autocommands ---
TabNew
* :call add(g:foo, "Many1")
:call add(g:foo, "Once1")
:call add(g:foo, "Once2")
:call add(g:foo, "Many2")
:call add(g:foo, "Once3")]]),
funcs.execute('autocmd Tabnew'))
command('tabnew')
command('tabnew')
command('tabnew')
eq(expected, eval('g:foo'))
eq(dedent([[
--- Autocommands ---
TabNew
* :call add(g:foo, "Many1")
:call add(g:foo, "Many2")]]),
funcs.execute('autocmd Tabnew'))
--
-- ":autocmd ... ++once" handlers can be deleted.
--
expected = {}
command('let g:foo = []')
command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
command('autocmd! TabNew')
command('tabnew')
eq(expected, eval('g:foo'))
--
-- ":autocmd ... <buffer> ++once ++nested"
--
expected = {
'OptionSet-Once',
'CursorMoved-Once',
}
command('let g:foo = []')
command('autocmd OptionSet binary ++nested ++once :call add(g:foo, "OptionSet-Once")')
command('autocmd CursorMoved <buffer> ++once ++nested setlocal binary|:call add(g:foo, "CursorMoved-Once")')
command("put ='foo bar baz'")
feed('0llhlh')
eq(expected, eval('g:foo'))
--
-- :autocmd should not show empty section after ++once handlers expire.
--
expected = {
'Once1',
'Once2',
}
command('let g:foo = []')
command('autocmd! TabNew') -- Clear all TabNew handlers.
command('autocmd TabNew * ++once :call add(g:foo, "Once1")')
command('autocmd TabNew * ++once :call add(g:foo, "Once2")')
command('tabnew')
eq(expected, eval('g:foo'))
eq(dedent([[
--- Autocommands ---]]),
funcs.execute('autocmd Tabnew'))
end)
end)
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