optomization in getting game system

backend/gsmaster/game_system_test.go

@@ -0,0 +1,23 @@
+package gsmaster
+
+import (
+	"testing"
+
+	"bamort/database"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetGameSystem(t *testing.T) {
+	// Initialize test DB and migrations
+	database.SetupTestDB(true)
+	defer database.ResetTestDB()
+	t.Run("GetGameSystem", func(t *testing.T) {
+		gs := GetGameSystem(1, "")
+		assert.Equal(t, "M5", gs.Code)
+		gs = GetGameSystem(0, "midgard")
+		assert.Equal(t, "M5", gs.Code)
+		gs = GetGameSystem(1, "M5")
+		assert.Equal(t, "M5", gs.Code)
+	})
+}