neovim/test/functional/legacy/006_argument_list_spec.lua
Thiago de Arruda 168a46fd31 test: Improve test environment setup and error handling/reporting
During test setup, we used to call a vimscript function(BeforeEachTest) that
attempted to restore Nvim to it's initial state as much as possible in order to
provide a clean environment for running new tests. This approach has proven to
be unreliable, as some tests leave state that can affect other tests, eventually
causing failures that are difficult to debug.

This commit changes the 'clear' function so it will restart Nvim every time it
is called, which is a slower, but more reliable solution that will simplify
spotting bugs in the future.

Some other improvements/fixes were also performed:

- Whenever an error is detected in a handler passed to "run()", the event loop
  will be stopped and the error will be propagated to the main thread.
- Errors and the "cleanup()" function will always send a quit command to the
  current Nvim instance. This should prevent memory starvation when running
  tests under valgrind(where each Nvim instance can consume a lot of memory).
- Fixed a wrong assertion in server_requests_spec.lua. Previously the failure
  was undetected in a notification handler.
- Fixed some tests to expect fully clean registers. The deleted cleanup function
  used to put an empty string in every register, but that resulted in a extra
  line being added.
2014-11-07 00:55:58 -03:00

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-- Test for autocommand that redefines the argument list, when doing ":all".
local helpers = require('test.functional.helpers')
local clear, feed, insert = helpers.clear, helpers.feed, helpers.insert
local execute, dedent, eq = helpers.execute, helpers.dedent, helpers.eq
local curbuf_contents = helpers.curbuf_contents
describe('argument list', function()
setup(clear)
it('is working', function()
insert([[
start of test file Xxx
this is a test
this is a test
this is a test
this is a test
end of test file Xxx]])
execute('au BufReadPost Xxx2 next Xxx2 Xxx1')
execute('/^start of')
-- Write test file Xxx1
feed('A1<Esc>:.,/end of/w! Xxx1<cr>')
-- Write test file Xxx2
feed('$r2:.,/end of/w! Xxx2<cr>')
-- Write test file Xxx3
feed('$r3:.,/end of/w! Xxx3<cr>')
-- Redefine arglist; go to Xxx1
execute('next! Xxx1 Xxx2 Xxx3')
-- Open window for all args
execute('all')
-- Write contents of Xxx1
execute('%yank A')
-- Append contents of last window (Xxx1)
feed('')
execute('%yank A')
-- should now be in Xxx2
execute('rew')
-- Append contents of Xxx2
execute('%yank A')
execute('%d')
execute('0put=@a')
execute('$d')
eq(dedent([[
start of test file Xxx1
this is a test
this is a test
this is a test
this is a test
end of test file Xxx
start of test file Xxx1
this is a test
this is a test
this is a test
this is a test
end of test file Xxx
start of test file Xxx2
this is a test
this is a test
this is a test
this is a test
end of test file Xxx]]), curbuf_contents())
end)
teardown(function()
os.remove('Xxx1')
os.remove('Xxx2')
os.remove('Xxx3')
end)
end)