A look at a directory opens a pane listing it, as acme's directory window: named dir/, its entries in acme's columns (bytewise, dotfiles kept, a directory's marked /), a look at an entry from there, Get or a look again reads it again, never dirty, Save refused; DirLook terminal keeps ls in a terminal

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

1 files changed, 26 insertions, 0 deletions

diff --git a/test/fs.py b/test/fs.py
index 204f4b37..65b354d9 100644
--- a/test/fs.py
+++ b/test/fs.py
@@ -605,6 +605,28 @@ def unattended_messages_expire(binary):
             assert not shown(), 'an unattended message outlived MessageLinger'
 
 
+def directory_panes(binary):
+    """A look at a directory opens a pane listing it, as acme's directory
+    window: a text pane named with a trailing /, its body the entries (a
+    directory's marked /), ctl's isdir 1, and get reads it again."""
+    with tempfile.TemporaryDirectory(prefix='pardes-dirpane-') as directory:
+        root = Path(directory).resolve()
+        listed = root / 'listed'
+        (listed / 'sub').mkdir(parents=True)
+        (listed / '.dot').write_bytes(b'')
+        with session(binary, root, 'dirpane') as (client, _):
+            serial = look(client, str(listed))
+            rows = [row.split() for row in client.read('/index').decode().splitlines()]
+            row = next(r for r in rows if int(r[0]) == serial)
+            assert row[1:4] == ['text', '0', f'{listed}/'], row
+            body = client.read(f'/pane/{serial}/body').decode()
+            assert body.split() == ['.dot', 'sub/'], body
+            assert client.read(f'/pane/{serial}/ctl').split()[3] == b'1'
+            (listed / 'later').write_bytes(b'')
+            client.write(f'/pane/{serial}/ctl', b'get\n')
+            assert client.read(f'/pane/{serial}/body').decode().split() == ['.dot', 'later', 'sub/']
+
+
 def new_terminals_named_once(binary):
     """A terminal started outside the session's directory is named by that
     directory from its `new` on: no rename to the session's and back."""
@@ -612,6 +634,9 @@ def new_terminals_named_once(binary):
         root = Path(directory)
         (root / 'sub').mkdir()
         with session(binary, root, 'names') as (client, _):
+            # A look at a directory starts a terminal there (DirLook
+            # terminal); DirLook pane, the default, lists it in a pane.
+            client.write('/ctl', b'DirLook terminal\n')
             made = [look(client, str(root / 'sub'))]
             before = {int(row.split()[0]) for row in client.read('/index').splitlines()}
             client.write('/pane/1/ctl', b'Tty\n')
@@ -992,6 +1017,7 @@ def test(binary, quic=False):
     exit_answers(binary)
     unattended_messages_expire(binary)
     new_terminals_named_once(binary)
+    directory_panes(binary)
     workflow_canary(binary)
     recent_survives_restart(binary)
     python_repl_runs_one_line(binary)