patch 8.1.1251: no test for completion of mapping keys commit https://github.com/vim/vim/commit/2cb9f0253228478ec27265ff40f59c629874d695 Author: Bram Moolenaar <Bram@vim.org> Date: Fri May 3 15:13:57 2019 +0200 patch 8.1.1251: no test for completion of mapping keys Problem: No test for completion of mapping keys. Solution: Add a test. Also clean up the code.

function Test_Comparators()
  try
    let oldisident=&isident
    set isident+=#
    call assert_equal(1, 1 is#1)
  finally
    let &isident=oldisident
  endtry
endfunction