Add vader new test shim

Install vader properly

.gitlab-ci.yml

@@ -9,6 +9,7 @@ stages:
     - apk add curl git bash make
     - apk add build-base neovim python3
     - curl -sSL https://bootstrap.pypa.io/get-pip.py | python3
+    - git clone --depth=1 https://github.com/junegunn/vader.vim.git ./test/vader/vader.vim
 
 test-latest:
   stage: test

test/new/test-vader/Makefile

@@ -0,0 +1,15 @@
+.PHONY: test
+
+MYVIM ?= nvim --headless
+
+INMAKE := 1
+export INMAKE
+
+VADER_DIR := ../../vader
+TESTS := $(wildcard $(VADER_DIR)/*.vader)
+TESTS := $(TESTS:.vader=)
+
+test: $(TESTS)
+
+$(VADER_DIR)/%: $(VADER_DIR)/%.vader
+	$(MYVIM) -u $(VADER_DIR)/minvimrc +Vader! $<