A look at a path not there under a peer's mount is a miss, the write answered, as any path to no file is

It failed the write with the peer's "file does not exist". A file not
found, here or through a mount, is now said and logged as a miss.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/test/fs.py b/test/fs.py
index 424a67e2..8eed2e29 100644
--- a/test/fs.py
+++ b/test/fs.py
@@ -1132,6 +1132,10 @@ def test(binary, quic=False):
                 remote.write(f'/pane/{opened}/exec', b'Save\n')
                 assert large_path.read_bytes() == edited
                 assert client.read('/os' + str(large_path)) == edited
+                # A path not there under a peer's mount is a miss, as any
+                # path to no file is: the write answered, the err logged.
+                remote.write('/look', b'/n/peer/os' + str(root / 'no-such-file.txt').encode() + b'\n')
+                assert b'no such file' in remote.read('/log')
 
             with session(binary, root, 'runtime') as (remote, own_address):
                 control = new_pane(remote, b'')