diff --git a/Makefile b/Makefile
index 9048359..e6451b0 100644
--- a/Makefile
+++ b/Makefile
@@ -25,4 +25,8 @@ examples:
 	CGO_ENABLED=0 GOOS=linux go build -o ./examples/delete_dir/delete_dir.out ./examples/delete_dir/delete_dir.go
 	CGO_ENABLED=0 GOOS=linux go build -o ./examples/make_dir/make_dir.out ./examples/make_dir/make_dir.go
 	CGO_ENABLED=0 GOOS=linux go build -o ./examples/get_ticket/get_ticket.out ./examples/get_ticket/get_ticket.go
-	CGO_ENABLED=0 GOOS=linux go build -o ./examples/get_ticket_anon/get_ticket_anon.out ./examples/get_ticket_anon/get_ticket_anon.go
\ No newline at end of file
+	CGO_ENABLED=0 GOOS=linux go build -o ./examples/get_ticket_anon/get_ticket_anon.out ./examples/get_ticket_anon/get_ticket_anon.go
+
+.PHONY: test
+test:
+	go test -timeout 3000s -v -p 1 ./...
diff --git a/test/testcases/main.go b/test/testcases/main.go
index 83101cf..4baa6aa 100644
--- a/test/testcases/main.go
+++ b/test/testcases/main.go
@@ -62,6 +62,11 @@ func shutdown() {
 		"function": "shutdown",
 	})
 
+	// empty global variables
+	account = nil
+	testFiles = []string{}
+	testDirs = []string{}
+
 	err := server.StopServer()
 	if err != nil {
 		logger.Error(err)