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tests: fix "api nvim_get_proc_children returns child process ids" (#10296)

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There might be an existing job already - maybe due to some other test,
but in this case there was only one failure in the test run.

```
[----------] Running tests from C:/projects/neovim/test/functional\api\proc_spec.lua
  [ RUN      ] api nvim_get_proc_children returns child process ids: ERR
  test\functional\helpers.lua:392:
  retry() attempts: 450
  C:/projects/neovim/test/functional\api\proc_spec.lua:22: Expected objects to be the same.
  Passed in:
  (number) 2
  Expected:
  (number) 1

  stack traceback:
  	test\functional\helpers.lua:392: in function 'retry'
  	C:/projects/neovim/test/functional\api\proc_spec.lua:21: in function <C:/projects/neovim/test/functional\api\proc_spec.lua:17>
```

https://ci.appveyor.com/project/neovim/neovim/builds/25461215/job/8ns204v6091iy9rs?fullLog=true#L2672
This commit is contained in:
Daniel Hahler
2019-06-22 15:29:39 +02:00
committed by Justin M. Keyes
parent f1f9a2f97b
commit bc10a15ea7
1 changed files with 8 additions and 4 deletions
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12
test/functional/api/proc_spec.lua
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@@ -17,24 +17,28 @@ describe('api', function()
it('returns child process ids', function()
local this_pid = funcs.getpid()
-- Might be non-zero already (left-over from some other test?),
-- but this is not what is tested here.
local initial_childs = request('nvim_get_proc_children', this_pid)
local job1 = funcs.jobstart(nvim_argv)
retry(nil, nil, function()
eq(1, #request('nvim_get_proc_children', this_pid))
eq(#initial_childs + 1, #request('nvim_get_proc_children', this_pid))
end)
local job2 = funcs.jobstart(nvim_argv)
retry(nil, nil, function()
eq(2, #request('nvim_get_proc_children', this_pid))
eq(#initial_childs + 2, #request('nvim_get_proc_children', this_pid))
end)
funcs.jobstop(job1)
retry(nil, nil, function()
eq(1, #request('nvim_get_proc_children', this_pid))
eq(#initial_childs + 1, #request('nvim_get_proc_children', this_pid))
end)
funcs.jobstop(job2)
retry(nil, nil, function()
eq(0, #request('nvim_get_proc_children', this_pid))
eq(#initial_childs, #request('nvim_get_proc_children', this_pid))
end)
end)