Add autopkgtest for python3 testsuite.

debian/changelog

@@ -4,6 +4,7 @@ dulwich (0.16.2-1) UNRELEASED; urgency=medium
   * Drop upstream applied patch 'older-git'.
   * Update homepage to www.dulwich.io.
   * Drop (now unnecessary) workaround for #799485.
+  * Add autopkgtest for python3 testsuite.
 
  -- Jelmer Vernooij <jelmer@debian.org>  Sun, 08 Jan 2017 02:12:51 +0000
 

debian/tests/control

@@ -1,3 +1,7 @@
-Tests: testsuite
+Tests: testsuite2
 Depends: python-dulwich, git
 Restrictions: allow-stderr
+
+Tests: testsuite3
+Depends: python3-dulwich, git
+Restrictions: allow-stderr

debian/tests/testsuite3

@@ -0,0 +1,3 @@
+#!/bin/sh
+set -e
+python3 -m unittest dulwich.tests.test_suite