How do I validate littlefs?

[namjaejeon]

How do I generally test to know if this filesystem is stable? Is there any filesystem testsuite or something ?

[geky]

littlefs has a test suite here: https://github.com/littlefs-project/littlefs/tree/master/tests. They can be run locally with make test -j if you have a Linux/BSD dev environment.

If you're looking for integration tests to run on a test device, it's a good item to add to the TODO list, but littlefs doesn't have anything like that ready at the moment. The current tests rely on a simulated block device to test things like powerloss and write failures, so porting them to a device might take some work. They're also written really to test the filesystem itself, so I'm not sure how well they would serve to test an integration...