test `test_disallow_root::non_root` not working on Windows

Test Improvement

Summary

The test:

Lines 3386 to 3396 in 20a3d57

    
           #[proptest] 
        
           #[cfg_attr(windows, ignore = "TODO: investigate errors on Windows")] 
        
           fn non_root(item: walk::Item) { 
        
               if let Ok(entry) = item.inner.as_ref() { 
        
                   prop_assume!(entry.path() != Path::new("/")); 
        
                   prop_assume!(!entry.path().as_os_str().is_empty()); 
        
               } 
        
               let out = disallow_root(item.clone()); 
        
               prop_assert_eq!(out, item); 
        
           }

is currently flaky on Windows systems, failing on a proptest-regressions' shrinked value of:

... # shrinks to item = Item { inner: Ok(Entry { kind: Dir, path: "a" }), skip_reason: None, visited: false }

As of writing it is unclear whether this is because the test is faulty or because the implementation is faulty.

Notes

This test was originally mentioned in #1 as a test failing due to symlinks but this was incorrect. Hence, this issue was created after #1 was closed.

	#[proptest]
	#[cfg_attr(windows, ignore = "TODO: investigate errors on Windows")]
	fn non_root(item: walk::Item) {
	if let Ok(entry) = item.inner.as_ref() {
	prop_assume!(entry.path() != Path::new("/"));
	prop_assume!(!entry.path().as_os_str().is_empty());
	}

	let out = disallow_root(item.clone());
	prop_assert_eq!(out, item);
	}