I broke up with neovim....vim is my best friend now

dot_vim/plugged/vimtex/test/test-completion-documentclass/test.vim

@@ -0,0 +1,14 @@
+set nocompatible
+let &rtp = '../..,' . &rtp
+filetype plugin on
+
+nnoremap q :qall!<cr>
+
+silent edit main.tex
+
+if empty($INMAKE) | finish | endif
+
+let s:candidates = vimtex#test#completion('\documentclass{', 'mini')
+call assert_equal(s:candidates[0].word, 'minimal')
+
+call vimtex#test#finished()