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

dot_vim/plugged/vimtex/test/test-delim/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-delim/test.tex

@@ -0,0 +1,12 @@
+\[
+\begin{gathered}
+First equation \\
+Second equation \\[1ex]
+Third and last equation
+\end{gathered}
+\]
+
+\begin{a}
+  \begin{b}
+  \end{c}
+\end{d}

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

@@ -0,0 +1,22 @@
+set nocompatible
+let &rtp = '../..,' . &rtp
+filetype plugin on
+syntax on
+
+nnoremap q :qall!<cr>
+
+silent edit test.tex
+
+normal! 7G
+let s:current = vimtex#delim#get_current('all', 'both')
+let s:corresponding = vimtex#delim#get_matching(s:current)
+call assert_equal(1, s:corresponding.lnum)
+
+normal! 9G
+let s:current = vimtex#delim#get_current('all', 'both')
+let s:corresponding = vimtex#delim#get_matching(s:current)
+call assert_equal(12, s:corresponding.lnum)
+call assert_equal('a', s:current.name)
+call assert_equal('d', s:corresponding.name)
+
+call vimtex#test#finished()