.

wcfs/wcfs_test.py

@@ -20,6 +20,7 @@
 """test wcfs filesystem from outside as python client process"""
 
 from wendelin.lib.testing import getTestDB
+from wendelin.lib.mem import memcpy
 from wendelin.bigfile.file_zodb import ZBigFile
 from wendelin.bigfile.tests.test_filezodb import blksize
 from wendelin import wcfs
@@ -158,6 +159,37 @@ def test_bigfile_empty():
     assert readfile(fpath + "/head/at") == tid2.encode('hex')
     # TODO check head/at syncs to later non-bigfile commits
 
+
+    # commit data to f and make sure we can see it on wcfs
+    fh  = f.fileh_open()
+    vma = fh.mmap(10, 1)    # 1 page at offset=10
+    s   = b"hello world"
+    memcpy(vma, s)
+
+    last._p_changed = 1
+    transaction.commit()
+    tidlast = last._p_serial
+
+    # XXX force sync of wcfs - how?
+
+    fsize = 10*blksize + len(s)    # trailing \0 not counted   XXX ok?
+
+    """
+    st = os.stat(fpath + "/head/data")
+    assert st.st_size  == fsize
+    assert st.st_mtime == tidtime(tidlast)
+    assert readfile(fpath + "/head/at") == tidlast.encode("hex")
+    """
+
+    data = readfile(fpath + "/head/data")
+    assert len(data) == fsize
+    for i in range(10):
+        assert data[i*blksize:(i+1)*blksize] == b'\0'*blksize
+    assert data[10*blksize:] == s
+
+
+
+
     wc.close()