Function test

test/integration/model/create.test.js:404–420

    if (current.dialect.supports.transactions) {
      it('should release transaction when meeting errors', async function() {
        const test = async times => {
          if (times > 10) {
            return true;
          }

          try {
            return await pTimeout(this.Student.findOrCreate({
              where: {
                no: 1
              }
            }), 1000);
          } catch (e) {
            if (e instanceof Sequelize.ValidationError) return test(times + 1);
            if (e instanceof pTimeout.TimeoutError) throw new Error(e);
            throw e;
          }
        };

        await test(0);
      });