fix test action

.github/workflows/test.yaml

@@ -18,4 +18,4 @@ jobs:
           go-version: '1.22.x'
 
       - name: Run tests
-        run: make gotest
+        run: make build-and-test

Makefile

@@ -1,12 +1,14 @@
 
 all: build run
 
+build-and-test: build gotest
+
 ROOTDIR := $(shell pwd)
 OUTPUTDIR = $(ROOTDIR)/_output
 BINDIR = $(OUTPUTDIR)/.bin
 
 .PHONY: install-deps
-install-deps:
+install-deps: install-protoc
 	mkdir -p $(BINDIR)
 	GOBIN=$(BINDIR) go install github.com/golang/protobuf/protoc-gen-go
 
@@ -25,7 +27,31 @@ run:
 	protoc --plugin=./$(BINDIR)/protoc-gen-openapi --openapi_out=single_file=true,use_ref=true:$(OUTPUTDIR)/. -Itestdata testdata/testpkg/test1.proto testdata/testpkg/test2.proto testdata/testpkg/test6.proto testdata/testpkg2/test3.proto
 
 gotest:
-	go test -v ./...
+	PATH=$(BINDIR):$(PATH) go test -v ./...
+
+PROTOC_VERSION:=3.15.8
+PROTOC_URL:=https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}
+.PHONY: install-protoc
+install-protoc:
+	mkdir -p $(BINDIR)
+	if [ $(shell ${BINDIR}/protoc --version | grep -c ${PROTOC_VERSION}) -ne 0 ]; then \
+		echo expected protoc version ${PROTOC_VERSION} already installed ;\
+	else \
+		if [ "$(shell uname)" = "Darwin" ]; then \
+			echo "downloading protoc for osx" ;\
+			wget $(PROTOC_URL)-osx-x86_64.zip -O $(BINDIR)/protoc-${PROTOC_VERSION}.zip ;\
+		elif [ "$(shell uname -m)" = "aarch64" ]; then \
+			echo "downloading protoc for linux aarch64" ;\
+			wget $(PROTOC_URL)-linux-aarch_64.zip -O $(BINDIR)/protoc-${PROTOC_VERSION}.zip ;\
+		else \
+			echo "downloading protoc for linux x86-64" ;\
+			wget $(PROTOC_URL)-linux-x86_64.zip -O $(BINDIR)/protoc-${PROTOC_VERSION}.zip ;\
+		fi ;\
+		unzip $(BINDIR)/protoc-${PROTOC_VERSION}.zip -d $(BINDIR)/protoc-${PROTOC_VERSION} ;\
+		mv $(BINDIR)/protoc-${PROTOC_VERSION}/bin/protoc $(BINDIR)/protoc ;\
+		chmod +x $(BINDIR)/protoc ;\
+		rm -rf $(BINDIR)/protoc-${PROTOC_VERSION} $(BINDIR)/protoc-${PROTOC_VERSION}.zip ;\
+	fi
 
 clean:
 	@rm -fr $(OUTPUTDIR) $(BINDIR)/protoc-gen-openapi