454     fn check_file(root: &Path, file: &str, content: &[u8]) {  in check_file()  function
523                 check_file(root, "foo", b"0123456789");  in single_file()
585                 check_file(root, "a/b2/c1", &[]);  in complex_hierarchy()
586                 check_file(root, "a/b2/c2/d1", &[]);  in complex_hierarchy()
587                 check_file(root, "a/b2/c2/d2", &[]);  in complex_hierarchy()
588                 check_file(root, "a/b2/c2/d3", &[]);  in complex_hierarchy()
589                 check_file(root, "x/y1", &[]);  in complex_hierarchy()
590                 check_file(root, "x/y2", &[]);  in complex_hierarchy()
591                 check_file(root, "foo", &[]);  in complex_hierarchy()
592                 check_file(root, "bar", &[]);  in complex_hierarchy()
607                 check_file(root, "foo", &data);  in large_file()