update functional test
add hidden folder check
Revert "add hidden folder check"

This reverts commit 69c0a976e3b4f65d9b5380d3f57c48d481ccbb1f.
Revert "Revert "add hidden folder check""

This reverts commit ec8a53cdcf7fcd73ff47f4c78ec3f4c54f3ff4e5.
update ut
add hidden file check
add debug info
add debug info
update ut
update unit test
fix failed cases
update fixed tests
add try catch on reading seed
Merge pull request #8 from liangji101/develop

update functional test