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

dot_vim/plugged/vimtex/test/test-paths/Makefile

@@ -0,0 +1,9 @@
+.PHONY: test
+
+MYVIM ?= nvim --clean --headless
+
+INMAKE := 1
+export INMAKE
+
+test:
+	@$(MYVIM) -u test.vim

dot_vim/plugged/vimtex/test/test-paths/main.tex

@@ -0,0 +1,6 @@
+\documentclass{minimal}
+\begin{document}
+
+Hello World!
+
+\end{document}

dot_vim/plugged/vimtex/test/test-paths/test.vim

@@ -0,0 +1,25 @@
+set nocompatible
+let &rtp = '../..,' . &rtp
+filetype plugin on
+
+nnoremap q :qall!<cr>
+
+silent edit main.tex
+
+if empty($INMAKE) | finish | endif
+
+call assert_true(vimtex#paths#is_abs('/some/path'))
+call assert_false(vimtex#paths#is_abs('other/path'))
+
+call assert_equal('a', vimtex#paths#relative('a', 'b'))
+call assert_equal('test1',
+      \ vimtex#paths#relative('/test2/test1', '/test2'))
+call assert_equal('Tex/test2',
+      \ vimtex#paths#relative('\Files\2016-2017\Tex\test2', '\Files\2016-2017'))
+call assert_equal('tilde~/test3',
+      \ vimtex#paths#relative('/path/with/tilde~/test3', '/path/with'))
+
+call assert_equal('some/path',
+      \ vimtex#paths#shorten_relative(expand('%:p:h') . '/some/path'))
+
+call vimtex#test#finished()