.

wcfs/testdata/.gitignore

+/*.lock
+/*.tmp
+/*.tr[0-9]

wcfs/testdata/zblk_test_gen.py

+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+# Copyright (C) 2018  Nexedi SA and Contributors.
+#                     Kirill Smelkov <kirr@nexedi.com>
+#
+# This program is free software: you can Use, Study, Modify and Redistribute
+# it under the terms of the GNU General Public License version 3, or (at your
+# option) any later version, as published by the Free Software Foundation.
+#
+# You can also Link and Combine this program with other software covered by
+# the terms of any of the Free Software licenses or any of the Open Source
+# Initiative approved licenses and Convey the resulting work. Corresponding
+# source of such a combination shall include the source code for all other
+# software used.
+#
+# This program is distributed WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# See COPYING file for full licensing terms.
+# See https://www.nexedi.com/licensing for rationale and options.
+"""zblk_test_gen.py generates test data for zblk_test.go"""
+
+from ZODB.DB import DB
+from ZODB.utils import u64
+from wendelin.bigfile.file_zodb import ZBlk0, ZBlk1, ZBigFile
+from numpy import arange, uint32
+import os, os.path, transaction
+
+blksize   = 2*1024*1024   # XXX hardcoded
+blksize32 = blksize // 4
+
+def main():
+    import zodbtools.test.gen_testdata  # to make time predictable (XXX)
+
+    outfs = "testdata/zblk.fs"
+    if os.path.exists(outfs):
+        os.remove(outfs)
+    db = DB(outfs)
+    conn = db.open()
+    root = conn.root()
+
+    # 0, 1, 2, ... as u32
+    data = bytes(arange(0, blksize32, dtype=uint32))
+
+    root['zblk0'] = z0 = ZBlk0()
+    root['zblk1'] = z1 = ZBlk1()    # also covers ZData
+    root['zbigf'] = zf = ZBigFile(blksize)
+
+    z0.setblkdata(data)
+    z1.setblkdata(data)
+    zf.blktab[0] = z0
+    zf.blktab[1] = z1
+
+    transaction.commit()
+
+    with open("ztestdata_zblk_test.go", "w") as f:
+        def emit(v):
+            print >>f, v
+        emit("// Code generated by %s; DO NOT EDIT." % __file__)
+        emit("package main\n")
+
+        emit("const z0_oid = %s" % u64(z0._p_oid))
+        emit("const z1_oid = %s" % u64(z1._p_oid))
+        emit("const zf_oid = %s" % u64(zf._p_oid))
+
+
+    conn.close()
+    db.close()
+
+
+if __name__ == '__main__':
+    main()

wcfs/zblk_test.go

@@ -19,4 +19,4 @@
 
 package main
 
-// TODO
+//go:generate ./testdata/zblk_test_gen.py

wcfs/ztestdata_zblk_test.go

+// Code generated by ./testdata/zblk_test_gen.py; DO NOT EDIT.
+package main
+
+const z0_oid = 2
+const z1_oid = 3
+const zf_oid = 1