From: Zooko O'Whielacronx <zooko@zooko.com>
Date: Thu, 7 Feb 2013 16:35:23 +0000 (+0000)
Subject: unit test for #1679
X-Git-Tag: allmydata-tahoe-1.10a1~22
X-Git-Url: https://git.rkrishnan.org/components/%22news.html/frontends/%22file:/status?a=commitdiff_plain;h=8df3a076255caeac1035ab87e515b5820bb59304;p=tahoe-lafs%2Ftahoe-lafs.git

unit test for #1679
---

diff --git a/src/allmydata/test/test_client.py b/src/allmydata/test/test_client.py
index 04458e68..ec713abc 100644
--- a/src/allmydata/test/test_client.py
+++ b/src/allmydata/test/test_client.py
@@ -331,6 +331,18 @@ class NodeMaker(testutil.ReallyEqualMixin, unittest.TestCase):
         self.failUnless(n.is_readonly())
         self.failIf(n.is_mutable())
 
+        # Testing #1679. There was a bug that would occur when downloader was
+        # downloading the same readcap more than once concurrently, so the
+        # filenode object was cached, and there was a failure from one of the
+        # servers in one of the download attempts. No subsequent download
+        # attempt would attempt to use that server again, which would lead to
+        # the file being undownloadable until the gateway was restarted. The
+        # current fix for this (hopefully to be superceded by a better fix
+        # eventually) is to prevent re-use of filenodes, so the NodeMaker is
+        # hereby required *not* to cache and re-use filenodes for CHKs.
+        other_n = c.create_node_from_uri("URI:CHK:6nmrpsubgbe57udnexlkiwzmlu:bjt7j6hshrlmadjyr7otq3dc24end5meo5xcr5xe5r663po6itmq:3:10:7277")
+        self.failIf(n is other_n, (n, other_n))
+
         n = c.create_node_from_uri("URI:LIT:n5xgk")
         self.failUnless(IFilesystemNode.providedBy(n))
         self.failUnless(IFileNode.providedBy(n))