test: add more tests

tests/prepared_stmt_test.go

@@ -52,13 +52,31 @@ func TestPreparedStmt(t *testing.T) {
 		t.Fatalf("no error should happen but got %v", err)
 	}
 
-	user3 := *GetUser("prepared_stmt_transaction", Config{})
+	users := []User{
+		*GetUser("prepared_stmt_transaction_1", Config{}),
+		*GetUser("prepared_stmt_transaction_2", Config{}),
+		*GetUser("prepared_stmt_transaction_3", Config{}),
+	}
 	err := tx.Transaction(func(tx1 *gorm.DB) error {
-		return tx1.Transaction(func(tx2 *gorm.DB) error {
+		tx1.Create(&users[0])
-			return tx2.Create(&user3).Error
+
+		tx1.Transaction(func(tx2 *gorm.DB) error {
+			tx2.Create(&users[1])
+			return errors.New("rollback user2") // Rollback user3
 		})
+
+		tx1.Transaction(func(tx2 *gorm.DB) error {
+			tx2.Create(&users[2])
+			return nil
+		})
+		return nil
 	})
 	AssertEqual(t, nil, err)
+
+	var psUsers []User
+	err = tx.Where("name like ?", "prepared_stmt_transaction%").Find(&psUsers).Error
+	AssertEqual(t, nil, err)
+	AssertEqual(t, 2, len(psUsers))
 }
 
 func TestPreparedStmtFromTransaction(t *testing.T) {