.

wcfs/client/client_test.py

@@ -30,6 +30,7 @@ from __future__ import print_function, absolute_import
 from golang import func, defer, b
 from wendelin.wcfs.wcfs_test import tDB, tAt
 from wendelin.wcfs import wcfs_test
+from wendelin.wcfs.internal.wcfs_test import read_mustfault
 
 # XXX so that e.g. testdb is set up + ...
 def setup_module():         wcfs_test.setup_module()
@@ -160,3 +161,12 @@ def test_wcfs_client():
     # XXX wconn.open()      after wconn.close() -> error
     # XXX wconn.resync()    after wconn.close() -> error
     # XXX all fileh / mappings become invalid after wconn.close
+
+
+# verify that on Conn/FileH down/closed -> Mappings switch to EFAULT on access.
+@func
+def test_wcfs_client_down_efault():
+    t = tDB(); zf = t.zfile; at0=t.at0
+    defer(t.close)
+    pinned = lambda fh: fhpinned(t, fh)
+

wcfs/wcfs_test.py

@@ -51,9 +51,9 @@ from golang import context, errors, sync, time
 from zodbtools.util import ashex as h, fromhex
 import pytest; xfail = pytest.mark.xfail
 from pytest import raises, fail
-from .internal import io, mm
-from .internal.wcfs_test import _tDB, read_nogil, install_sigbus_trap, fadvise_dontneed
-from .client._wcfs import _tpywlinkwrite as _twlinkwrite
+from wendelin.wcfs.internal import io, mm
+from wendelin.wcfs.internal.wcfs_test import _tDB, read_nogil, install_sigbus_trap, fadvise_dontneed
+from wendelin.wcfs.client._wcfs import _tpywlinkwrite as _twlinkwrite
 
 
 # setup: