On 09/02/2018 22:41, Lifepillar wrote:

Unfortunately, I still have some problems when I test my plugin's
mappings. I have traced back the issue to the following:

   fun! s:dup_complete()
     " Get the text in front of the cursor
     return getline('.')[0:col('.') - 2]
   endf

   fun! Test_dup_completion()
     new
     imap <buffer> <expr> <silent> <plug>(Dup) <sid>dup_complete()
     call feedkeys("ajump\<plug>(Dup)", "tx")
     call assert_equal("jumpjump", getline(1))
     bwipe!
   endf

It seems that in s:dup_complete() getline('.') is always empty and
col('.') is always 1. Is there anything I can do about it?

For the record, I was able to make the test pass by rewriting it as
follows:

  fun! Test_FOO_dup_completion()
    new
    imap <buffer> <expr> <silent> <plug>(Dup) <sid>dup_complete()
    call feedkeys("ajump", "tx")
    call feedkeys("a", "t!")
    call feedkeys("\<plug>(Dup)", "tx")
    call assert_equal("jumpjump", getline(1))
    bwipe!
  endf

Life.

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