how to use plenary to unit test

[windwp]

i want to use plenary to do some unit test but i got a some issue with automatic feedkeys function.

describe('pair input test ', function()
  it("test case 1",function()
      local line=1
      local pos =4;
      vim.fn.setline(line , before)
      vim.fn.setpos('.' ,{0 , line , pos , 0})
      vim.fn.feedkeys("i(")
      vim.fn.feedkeys("<ESC>")

        vim.wait(5,function()
            local result = vim.fn.getline(line)
            --  text result still no change ?
            print('result'..vim.inspect(result))
            local pos = vim.fn.getpos('.')
            return true
         end)
end)
end)

how do i test the text result after i use feedkeys function?

Thank

[Conni2461]

luassert is bundled with plenary and is used to check if both entries are the same and more.
So what you wanna do is assert.are.equal(expected, result).
You can find a lot of examples in our test directory like curl_spec and the documentation how to test here.

[windwp]

hi it is not my issue
my issue is about feedkeys function it is not change the text line and execute my mapping function.
i already use vim.wait but it still not change a text.

[Conni2461]

Oh sorry my bad i completely misread the issue.
If i remember correctly tj also had issues with nvim_feedkeys for telescope integration tests so it might be best to wait for him but FWIW this first it runs this test which will make use of this feed function. Maybe this helps you a little bit more

[tjdevries]

That's not how vim.wait works. I am not sure what you're trying to do exactly.

[windwp]

@tjdevries
i want to use feedkeys and get a result text after that. My usecase is very simple i want to test my mapping function in insermode

You can get full code here.

https://github.com/windwp/nvim-autopairs/blob/testfeedkeys/tests/pairs_spec.lua

Thank

[Julian]

@windwp I don't know if you mean to ask about the same issue I had (how to write tests that insert text, then check for a result) but if that's what you're asking about, it took me about an hour or two to figure out the missing piece was passing 'x' to feedkeys, after which finally text actually gets inserted that I can read back.

Example is here via this helper.

Still can't figure out how to get empty buffers so that I don't have to do cleanup myself, but yeah I think that's maybe what you're after?

[windwp]

Thank @Julian
passing 'x' to feedkeys function will fix my issues.