@Override
  protected Set<? extends AttributeProvider> createInheritedProviders() {
    return ImmutableSet.of(
        new BasicAttributeProvider(), new OwnerAttributeProvider(), new PosixAttributeProvider());
  }
Tests for {@link UnixAttributeProvider}.

@author Colin Decker
jimfs/src/test/java/com/google/common/jimfs/UnixAttributeProviderTest.java