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

dot_vim/plugged/vimtex/test/test-utils/Makefile

@@ -0,0 +1,14 @@
+MYVIM ?= nvim --clean --headless
+
+INMAKE := 1
+export INMAKE
+
+TESTS := $(wildcard *.vim)
+TESTS := $(TESTS:.vim=)
+
+.PHONY: test $(TESTS)
+
+test: $(TESTS)
+
+$(TESTS):
+	@$(MYVIM) -u $@.vim

dot_vim/plugged/vimtex/test/test-utils/test1.vim

@@ -0,0 +1,19 @@
+set nocompatible
+let &rtp = '../..,' . &rtp
+filetype plugin on
+
+set nomore
+
+let s:tree = vimtex#util#tex2tree(
+      \ '\newlabel{test}{{\textsc {D\''ej\`a vu}\relax }{caption.1}{}}')
+call assert_equal(3, len(s:tree))
+call assert_equal('\textsc', s:tree[2][0][0])
+
+" Test for #1599: Fail label completion due to tex2unicode
+let s:line = vimtex#util#tex2unicode('{\textsc {D\''ej\`a}\relax }')
+call assert_equal('{\textsc {Déjà}\relax }', s:line)
+
+let s:str = 'title={Temporary, complete list of references}'
+call assert_equal([s:str], vimtex#util#texsplit(s:str))
+
+call vimtex#test#finished()