ci(workflows): initial support for test

Add a Makefile task to locally run it

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.22'
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v ./...

Makefile

@@ -2,18 +2,36 @@
 
 VERSION ?= $(shell ./hack/get-version.sh)
 
-.PHONY:fmt vet build
+GO_IMG ?= golang:alpine3.20@sha256:1b455a3f7786e5765dbeb4f7ab32a36cdc0c3f4ddd35406606df612dc6e3269b
+
+.PHONY: fmt vet build unit-test
+
+DOCKER_CMD = docker run --rm -v $(PWD):/app -w /app ${GO_IMG}
+
+## verify: Format code
 fmt:
 	go fmt ./...
 
+## verify: Verify code
 vet: fmt
 	go vet ./...
 
+## build: Build binary
 build: vet
-	go build
+	go build -v ./...
+
+## unit-test: Run unit tests
+unit-test:
+ifeq ($(USE_DOCKER), 1)
+	@${DOCKER_CMD} go test -v ./...
+else
+	go test -v ./..
+endif
 
+## build-image: Build image
 build-docker: vet
 	docker build -t numberly/vault-db-injector:${VERSION} .
 
+## build-image: Push image
 push-docker: build-docker
 	docker push numberly/vault-db-injector:${VERSION}