diff -Nru hgsubversion-1.8.5/debian/changelog hgsubversion-1.8.5/debian/changelog
--- hgsubversion-1.8.5/debian/changelog	2016-03-10 05:32:51.000000000 +0000
+++ hgsubversion-1.8.5/debian/changelog	2016-04-07 10:55:08.000000000 +0000
@@ -1,3 +1,11 @@
+hgsubversion (1.8.5-1ubuntu1) xenial; urgency=medium
+
+  * debian/patches/717bf096197ecbd5c35fac899883db2c35fd21fe.patch
+    fix testfailure about deprecated repo.parents()[0] call
+    (now repo[None].parents()[0])
+
+ -- Gianfranco Costamagna <locutusofborg@debian.org>  Thu, 07 Apr 2016 12:50:45 +0200
+
 hgsubversion (1.8.5-1) unstable; urgency=medium
 
   * New upstream release
diff -Nru hgsubversion-1.8.5/debian/patches/717bf096197ecbd5c35fac899883db2c35fd21fe.patch hgsubversion-1.8.5/debian/patches/717bf096197ecbd5c35fac899883db2c35fd21fe.patch
--- hgsubversion-1.8.5/debian/patches/717bf096197ecbd5c35fac899883db2c35fd21fe.patch	1970-01-01 00:00:00.000000000 +0000
+++ hgsubversion-1.8.5/debian/patches/717bf096197ecbd5c35fac899883db2c35fd21fe.patch	2016-04-07 10:54:40.000000000 +0000
@@ -0,0 +1,70 @@
+# User Shun-ichi GOTO <shunichi.goto@gmail.com>
+# Date 1456193799 -32400
+# Branch stable
+# Node ID 717bf096197ecbd5c35fac899883db2c35fd21fe
+# Parent  34968c4a6a02e4e43596a367a2dca77efee92076
+compat: fix some more use of repo.parents()
+
+fix repo.parents() to repo[None].parents() in some places
+along with changeset 4f8b1f202c90.
+
+diff --git a/hgsubversion/util.py b/hgsubversion/util.py
+--- a/hgsubversion/util.py
++++ b/hgsubversion/util.py
+@@ -72,7 +72,7 @@
+ def parentrev(ui, repo, meta, hashes):
+     """Find the svn parent revision of the repo's dirstate.
+     """
+-    workingctx = repo.parents()[0]
++    workingctx = repo[None].parents()[0]
+     outrev = outgoing_revisions(repo, hashes, workingctx.node())
+     if outrev:
+         workingctx = repo[outrev[-1]].parents()[0]
+diff --git a/hgsubversion/wrappers.py b/hgsubversion/wrappers.py
+--- a/hgsubversion/wrappers.py
++++ b/hgsubversion/wrappers.py
+@@ -128,7 +128,7 @@
+     # split off #rev; TODO implement --revision/#rev support
+     svn = other.svn
+     meta = repo.svnmeta(svn.uuid, svn.subdir)
+-    parent = repo.parents()[0].node()
++    parent = repo[None].parents()[0].node()
+     hashes = meta.revmap.hashes()
+     common, heads = util.outgoing_common_and_heads(repo, hashes, parent)
+     outobj = getattr(discovery, 'outgoing', None)
+@@ -147,7 +147,7 @@
+     # svnurl, revs, checkout = util.parseurl(dest.svnurl, heads)
+     svn = dest.svn
+     meta = repo.svnmeta(svn.uuid, svn.subdir)
+-    parent = repo.parents()[0].node()
++    parent = repo[None].parents()[0].node()
+     hashes = meta.revmap.hashes()
+     return util.outgoing_revisions(repo, hashes, parent)
+ 
+@@ -160,7 +160,7 @@
+     meta = repo.svnmeta()
+     hashes = meta.revmap.hashes()
+     if not opts.get('rev', None):
+-        parent = repo.parents()[0]
++        parent = repo[None].parents()[0]
+         o_r = util.outgoing_revisions(repo, hashes, parent.node())
+         if o_r:
+             parent = repo[o_r[-1]].parents()[0]
+@@ -212,7 +212,7 @@
+ 
+         # Strategy:
+         # 1. Find all outgoing commits from this head
+-        if len(repo.parents()) != 1:
++        if len(repo[None].parents()) != 1:
+             ui.status('Cowardly refusing to push branch merge\n')
+             return 0 # results in nonzero exit status, see hg's commands.py
+         workingrev = repo[None].parents()[0]
+@@ -557,7 +557,7 @@
+         """
+         extra['branch'] = ctx.branch()
+     extrafn = opts.get('svnextrafn', extrafn2)
+-    sourcerev = opts.get('svnsourcerev', repo.parents()[0].node())
++    sourcerev = opts.get('svnsourcerev', repo[None].parents()[0].node())
+     meta = repo.svnmeta()
+     hashes = meta.revmap.hashes()
+     o_r = util.outgoing_revisions(repo, hashes, sourcerev=sourcerev)
diff -Nru hgsubversion-1.8.5/debian/patches/series hgsubversion-1.8.5/debian/patches/series
--- hgsubversion-1.8.5/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ hgsubversion-1.8.5/debian/patches/series	2016-04-07 10:55:02.000000000 +0000
@@ -0,0 +1 @@
+717bf096197ecbd5c35fac899883db2c35fd21fe.patch