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

dot_vim/plugged/vimtex/test/test-compiler-generic/Makefile

@@ -0,0 +1,19 @@
+MYVIM ?= nvim --clean --headless
+
+INMAKE := 1
+export INMAKE
+
+TESTS := $(wildcard test*.vim)
+
+.PHONY: dummy test $(TESTS)
+
+test: $(TESTS)
+
+$(TESTS):
+	@$(MYVIM) -u $@
+
+
+dummy:
+	@echo Compiling...
+	@echo SillyWalks
+	@echo Compiling...Done!

dot_vim/plugged/vimtex/test/test-compiler-generic/test.tex

@@ -0,0 +1,4 @@
+\documentclass{minimal}
+\begin{document}
+Hello world!
+\end{document}

dot_vim/plugged/vimtex/test/test-compiler-generic/test.vim

@@ -0,0 +1,32 @@
+set nocompatible
+set runtimepath^=../..
+filetype plugin on
+
+nnoremap q :qall!<cr>
+
+let g:test = 0
+
+function! Callback(msg)
+  if a:msg =~# 'SillyWalk'
+    let g:test = 1
+  endif
+endfunction
+
+let g:vimtex_view_automatic = 0
+let g:vimtex_compiler_method = 'generic'
+let g:vimtex_compiler_generic = {
+      \ 'command': 'make dummy',
+      \ 'hooks': [function('Callback')],
+      \}
+
+call vimtex#log#set_silent()
+
+silent edit test.tex
+
+if empty($INMAKE) | finish | endif
+
+call vimtex#compiler#start()
+call b:vimtex.compiler.wait()
+call assert_equal(1, g:test)
+
+call vimtex#test#finished()