neovim/test/functional/legacy/008_autocommands_spec.lua
Justin M. Keyes 9642903dea
test: Improve 008_autocommands_spec reliability (#9129)
Sometimes 008_autocommands_spec fails like this:

    [ RUN      ] autocommands that delete and unload buffers: BufUnload, VimLeave: -- Output to stderr:
    CMake Error at /home/travis/build/neovim/neovim/cmake/RunTests.cmake:53 (message):
      functional tests failed with error: 1

The final :quit + wait() is a race. Use command() instead, which is
synchronous.  Use command('silent! ...') everywhere else too, because
it's clearer instead of feeding input and clearing the expected errors
with CTRL-L.
2018-10-17 09:24:45 +02:00

83 lines
2.5 KiB
Lua

-- Test for BufWritePre autocommand that deletes or unloads the buffer.
-- Test for BufUnload autocommand that unloads all other buffers.
local helpers = require('test.functional.helpers')(after_each)
local source = helpers.source
local clear, command, expect, eq, eval = helpers.clear, helpers.command, helpers.expect, helpers.eq, helpers.eval
local write_file, dedent = helpers.write_file, helpers.dedent
local read_file = helpers.read_file
describe('autocommands that delete and unload buffers:', function()
local test_file = 'Xtest-008_autocommands.out'
local text1 = dedent([[
start of Xxx1
test
end of Xxx]])
local text2 = text1:gsub('1', '2')
setup(function()
write_file('Xxx1', text1..'\n')
write_file('Xxx2', text2..'\n')
end)
teardown(function()
os.remove(test_file)
os.remove('Xxx1')
os.remove('Xxx2')
end)
before_each(clear)
it('BufWritePre, BufUnload', function()
command('au BufWritePre Xxx1 bunload')
command('au BufWritePre Xxx2 bwipe')
command('e Xxx2')
eq('Xxx2', eval('bufname("%")'))
command('e Xxx1')
eq('Xxx1', eval('bufname("%")'))
-- The legacy test file did not check the error message.
command('let v:errmsg = "no error"')
command('silent! write')
eq('E203: Autocommands deleted or unloaded buffer to be written',
eval('v:errmsg'))
eq('Xxx2', eval('bufname("%")'))
expect(text2)
-- Start editing Xxx2.
command('e! Xxx2')
-- The legacy test file did not check the error message.
command('let v:errmsg = "no error"')
-- Write Xxx2, will delete the buffer and give an error msg.
command('silent! write')
eq('E203: Autocommands deleted or unloaded buffer to be written',
eval('v:errmsg'))
eq('Xxx1', eval('bufname("%")'))
expect(text1)
end)
it('BufUnload, VimLeave', function()
source([[
func CloseAll()
let i = 0
while i <= bufnr('$')
if i != bufnr('%') && bufloaded(i)
exe i . "bunload"
endif
let i += 1
endwhile
endfunc
func WriteToOut()
edit! ]]..test_file..[[
$put ='VimLeave done'
write
endfunc
set shada='100
au BufUnload * call CloseAll()
au VimLeave * call WriteToOut()
]])
command('silent! edit Xxx2')
command('silent! edit Xxx1')
command('silent! edit Makefile') -- an existing file
command('silent! split new2')
command('silent! quit')
eq('VimLeave done',
string.match(read_file(test_file), "^%s*(.-)%s*$"))
end)
end)