add more ut to keep auto test for pr

[Nicole00]

We want to ensure the accuracy of ngbatis, so we need add more test.

[CorvusYe]

Maybe we need a accessable db or import nebula into project, right?

I always use the test in ngbatis-demo. There are more test cases then ngbatis. But I don't know how to automate this test.

It maybe give you some reference.

[wey-gu]

Maybe we need a accessable db or import nebula into project, right?

I always use the test in ngbatis-demo.

There are more test cases then ngbatis.

But I don't know how to automate this test.

It maybe give you some reference.

I will add that later :)

[Nicole00]

Maybe we need a accessable db or import nebula into project, right?

I always use the test in ngbatis-demo. There are more test cases then ngbatis. But I don't know how to automate this test.

It maybe give you some reference.

@CorvusYe @wey-gu I have add the nebula docker server in pr https://github.com/nebula-contrib/ngbatis/pull/23. In the ut, we can use 127.0.0.1:9669,127.0.0.1:9670,127.0.0.1:9671 to access the nebula graph server.