122         Ok(Sha256Hasher::new()?  in new_hash_for_incomplete_write()
140             Ok(Sha256Hasher::new()?.update(source)?.finalize()?)  in new_chunk_hash()
191                 Ok(hash) => hash,  in write_at()
198                         return Ok(written as usize);  in write_at()
217         Ok(buf.len())  in write_at()
253         Ok(())  in resize()
294             Ok(buf.len())  in write_at()
301             Ok(())  in resize()
322             Ok(chunk.len())  in read_chunk()
339         Ok(())  in test_writer()
351         Ok(())  in test_verified_writer_no_write()
382         Ok(())  in test_verified_writer_from_zero()
404         Ok(())  in test_verified_writer_unaligned()
435         Ok(())  in test_verified_writer_with_hole()
475         Ok(())  in test_verified_writer_various_writes()
505         Ok(())  in test_verified_writer_inconsistent_read()
517         Ok(())  in test_verified_writer_failed_read_back()
533         Ok(())  in test_resize_to_same_size()
550         Ok(())  in test_resize_to_grow()
567         Ok(())  in test_resize_to_shrink()
579         Ok(())  in test_resize_to_shrink_with_read_failure()
599         Ok(())  in test_resize_to_shirink_to_chunk_boundary()