### What problem does this PR solve?
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
Signed-off-by: zhanluxianshen <zhanluxianshen@163.com>
### What problem does this PR solve?
Test cases about dataset
### Type of change
- [x] Other (please describe): test cases
---------
Signed-off-by: jinhai <haijin.chn@gmail.com>