[PATCH 2 of 9] py3: add tests to show `hg branches` and `hg bookmarks` work on Python 3

[Pulkit Goyal]

# HG changeset patch
# User Pulkit Goyal <7895pulkit at gmail.com>
# Date 1498078888 -19800
#      Thu Jun 22 02:31:28 2017 +0530
# Node ID 2ed2c527b9ff174c7a67ee7051c2968ea1ce4f7d
# Parent  8dce5f597161758063af4d58068f484f633afb85
py3: add tests to show `hg branches` and `hg bookmarks` work on Python 3

diff --git a/tests/test-py3-commands.t b/tests/test-py3-commands.t
--- a/tests/test-py3-commands.t
+++ b/tests/test-py3-commands.t
@@ -229,3 +229,11 @@
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ $PYTHON3 $HGBIN identify
   71c96e924262
+
+branches and bookmarks also works.
+
+  $ $PYTHON3 $HGBIN branches
+  default                        1:e1e9167203d4
+  $ $PYTHON3 $HGBIN bookmark book
+  $ $PYTHON3 $HGBIN bookmarks
+   * book                      0:71c96e924262