Test on 1second resolution m_time file system

Summary

We normally test on filesystems with m_time resolution much finer then 1second however some file systems only provide 1sec resolution for m_times.

However every now and again we do run the test on these file systems and they do some times fail so we should have this style of file system tested if only to identify which test need to be skipped

However they also some times seem to exasperate and highlight real bugs eg #1063 (closed)

Steps to reproduce

Run the tests suite on a file system with one second resolution m_times

What is the expected correct behavior?

It is not clear if we need all the tests to pass or just for the test sweet to pass with some tests skipped

It is also not clear how often we should run these tests, for every patch? on master? on manual? but i think we should test them like this some times, and given how many OS's we test i think a file system test would make perfect sense.

Relevant logs and/or screenshots

Possible fixes

Other relevant information

• BuildStream version affected: /milestone %BuildStream_v1.x

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