test: add gin test sample

test/services/sevices_test.go

@@ -0,0 +1,20 @@
+package services
+
+import (
+	"health-go/routers"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPingRoute(t *testing.T) {
+	router := routers.SetupRouter()
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "/fetchHosList", nil)
+	router.ServeHTTP(w, req)
+
+	assert.JSONEq(t, `{"code: 20"}`, w.Body.String())
+}