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

dot_vim/plugged/vimtex/test/test-parser-bib/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-parser-bib/test.bib

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+@string{ test= "something" }
+@string{ name1 = "Mr. Foo" }
+
+@comment{
+  blahrg
+}
+
+@preamble{silly things
+}
+
+@SomeType{key,
+  title  = "Some title, with a comma in it",
+  year   = {2017},
+  author = "Author1 and Author2",
+  other  = {Something else}
+}
+
+@article{knuth,
+  title  = "Other title",
+  year   = {1938},
+  author = "Donald Knuth",
+}
+
+@misc{key2,
+  title = {A new title},
+  author = name1 # " and Mr. Bar",
+  year = "1960",
+}
+
+@misc{key3,
+  tag1 = {{Bib}\TeX},
+  tag2 = "{Bib}\TeX",
+  tag3 = "{Bib}" # "\TeX",
+  publisher = "nob" # "ody",
+  year = 2005,
+}
+
+@misc{key4,
+  
+}
+
+@article{knuth-single-line, title  = "Other title", year   = {1938}, author = "Donald Knuth", }
+
+@errorintags{key4,
+  title = {some title}
+  author = "should not work",
+}

dot_vim/plugged/vimtex/test/test-parser-bib/test.vim

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+set nocompatible
+let &rtp = '../..,' . &rtp
+
+function! TestBackend(bibfile, backend) abort
+  let g:vimtex_parser_bib_backend = a:backend
+  return vimtex#parser#bib(a:bibfile)
+endfunction
+
+
+let s:parsed = TestBackend('test.bib', 'bibtex')
+call assert_equal(6, len(s:parsed))
+
+let s:parsed = TestBackend('test.bib', 'vim')
+call assert_equal(7, len(s:parsed))
+
+call vimtex#log#set_silent()
+let s:parsed = TestBackend('test.bib', 'badparser')
+call assert_equal(0, len(s:parsed))
+
+" let s:parsed = TestBackend('test.bib', 'bibparse')
+" call assert_equal(7, len(s:parsed))
+
+" let s:parsed = TestBackend('test.bib', 'bibtexparser')
+" call assert_equal(5, len(s:parsed))
+
+let s:bib = vimtex#kpsewhich#find('biblatex-examples.bib')
+if !empty(s:bib) && filereadable(s:bib)
+  let s:parsed = TestBackend(s:bib, 'bibtex')
+  call assert_equal(92, len(s:parsed))
+
+  let s:parsed = TestBackend(s:bib, 'vim')
+  call assert_equal(92, len(s:parsed))
+
+  " let s:parsed = TestBackend(s:bib, 'bibparse')
+  " call assert_equal(92, len(s:parsed))
+
+  " let s:parsed = TestBackend(s:bib, 'bibtexparser')
+  " call assert_equal(92, len(s:parsed))
+endif
+
+call vimtex#test#finished()