[Enhancement]: Change all test case to suite based one

[congqixia]

Is there an existing issue for this?

• [X] I have searched the existing issues

What would you like to be added?

Change all test case to suite based one

Why is this needed?

All unit test was build on manual crafted mocked server, using pre-set suite shall make logic clearer

Anything else?

No response

[congqixia]

Unit tests

• [ ] Collection
  • [x] ListCollections
  • [x] CreateCollection
  • [ ] DescribeCollection
  • [ ] HasCollection
  • [ ] DropCollection
  • [ ] AlterCollection
• [ ] Partition
• [ ] Index
• [ ] Insert
• [ ] Search
• [ ] Maintenance