remove duplicate test target @ root

add structure for [lint,vet,test-unit] all wrapped up
by the test target

Makefile

@@ -49,5 +49,3 @@ $(TARGETS) : % : $(addsuffix %,$(SUBDIRS))
 $(SUBDIRS_TARGETS) :
 	$(MAKE) -C $(@D) $(@F:.%=%)
 
-test:
-	go test -v ./...

expandybird/Makefile

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+include ../include.mk
+
 .PHONY : all build test push container clean
 
 DOCKER_REGISTRY := gcr.io
@@ -47,5 +49,17 @@ clean:
 	-docker rmi $(PREFIX)/$(IMAGE):$(TAG)
 	rm -f expandybird
 
-test:
-	go test -v ./...
+.PHONY: test
+test: lint vet test-unit
+
+.PHONY: test-unit
+test-unit:
+	$(GO_TEST)
+
+.PHONY: lint
+lint:
+	$(GO_LINT)
+
+.PHONY: vet
+vet:
+	$(GO_VET)

include.mk

@@ -0,0 +1,2 @@
+GO_VET := echo using go vet
+GO_TEST := go test -v ./...