From 220e9ca7020463662074f9b80efa0c1505d9506a Mon Sep 17 00:00:00 2001
From: kinggo <1510613524@qq.com>
Date: Wed, 3 Nov 2021 19:40:32 +0800
Subject: [PATCH] add connections leak test

---
 tests/conn_test.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/conn_test.go

diff --git a/tests/conn_test.go b/tests/conn_test.go
new file mode 100644
index 00000000..35647509
--- /dev/null
+++ b/tests/conn_test.go
@@ -0,0 +1,24 @@
+package tests_test
+
+import (
+	"context"
+	"database/sql"
+	. "gorm.io/gorm/utils/tests"
+	"reflect"
+	"testing"
+)
+
+func TestConnLeak(t *testing.T) {
+
+	DB.Table("non_existent").WithContext(context.Background()).FirstOrCreate(&User{Name: "foo"})
+	DB.Table("non_existent").WithContext(context.Background()).FirstOrCreate(&User{Name: "foo"})
+	DB.Table("non_existent").WithContext(context.Background()).FirstOrCreate(&User{Name: "foo"})
+
+	connPool := DB.ConnPool.(*sql.DB)
+	v := reflect.ValueOf(connPool).Elem()
+	f := v.FieldByName("numOpen")
+
+	if f.Int() > 1 {
+		t.Errorf("Expected open one connections but found %d", f.Int())
+	}
+}