.

wcfs/wcfs_test.py

@@ -22,7 +22,10 @@ from wendelin.lib.testing import getTestDB
 from wendelin.bigfile.file_zodb import ZBigFile
 from wendelin.bigfile.tests.test_filezodb import blksize
 from wendelin import wcfs
+
 import transaction
+from persistent import Persistent
+from persistent.timestamp import TimeStamp
 
 import os, os.path, subprocess
 from pytest import raises
@@ -62,6 +65,11 @@ def readfile(path):
     with open(path) as f:
         return f.read()
 
+# ttime converts tid to transaction commit time.
+def ttime(tid):
+    return TimeStamp(tid).timeTime()
+
+
 # check that zurl does not change from one open to another storage open.
 def test_zurlstable():
     for i in range(10):
@@ -106,10 +114,18 @@ def test_join_autostart():
 def test_bigfile_empty():
     root = testdb.dbopen()
     root['zfile'] = f = ZBigFile(blksize)
+
+    # NOTE there is no clean way to retrieve tid of just committed transaction
+    #      we'll be using last._p_serial as workaround.
+    root['last'] = last = Persistent()
     transaction.commit()
+    tid1 = last._p_serial
 
-    root['aaa'] = 'bbb'
+    last._p_changed = 1
     transaction.commit()
+    tid2 = last._p_serial
+
+    assert ttime(tid2) > ttime(tid1)
 
     wc = wcfs.join(testzurl, autostart=True)
 
@@ -117,10 +133,11 @@ def test_bigfile_empty():
     fpath = "%s/bigfile/%s" % (wc.mountpoint, f._p_oid.encode('hex'))
 
     os.mkdir(fpath)
-    os.stat(fpath + "/head/data")
+    st = os.stat(fpath + "/head/data")
+    assert st.st_size == 0
+    assert st.st_mtime == ttime(tid1)
 
-    # XXX size(head/data) = 0
-    # XXX mtime(head/data) ~= last txn that changed bigdile
+    assert readfile(fpath + "/head/at") == 'txn2'
     # XXX head/at = last txn of whole db