ci: Re-run tests 3 times to ensure it's not a false positive

Author: kristijanhusak

.github/workflows/tests.yml

@@ -39,4 +39,4 @@ jobs:
           neovim: true
           version: ${{ matrix.version }}
       - name: Run tests
-        run: make test
+        run: make test-ci

Makefile

@@ -2,6 +2,9 @@ clean:
 	nvim --headless --clean -n -c "lua vim.fn.delete('./tests/.deps', 'rf')" +q
 test:
 	nvim --headless --clean -u tests/test.lua "$(FILE)"
+# Re-run CI tests 3 times before failing, to avoid reporting false negatives
+test-ci:
+	for i in {1..3}; do nvim --headless --clean -u tests/test.lua && break || sleep 1; done
 vim_docs:
 	./scripts/build_docs.sh
 api_docs: