From 148d05c8bf4f5a7c0fa5075946b350c524e8b43e Mon Sep 17 00:00:00 2001
From: xzg <xzg@broada.com>
Date: Tue, 12 Dec 2017 23:34:44 +0800
Subject: [PATCH] Add sort for string and test case

---
 pydu/string.py       | 11 +++++++++++
 tests/test_string.py | 12 +++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/pydu/string.py b/pydu/string.py
index cdd541f..7ff0f08 100644
--- a/pydu/string.py
+++ b/pydu/string.py
@@ -132,3 +132,14 @@ def common_suffix(l):
         commons.append(common)
     return ''.join(reversed(commons))
 
+
+def sort(string, reverse=False):
+    l = list(string)
+    l.sort(reverse=reverse)
+    return "".join(l)
+
+
+def
+
+
+
diff --git a/tests/test_string.py b/tests/test_string.py
index 6715995..f25b4dd 100644
--- a/tests/test_string.py
+++ b/tests/test_string.py
@@ -1,6 +1,6 @@
 # coding: utf-8
 from pydu.string import (safeencode, safeunicode, strips, lstrips, rstrips,
-                         common_prefix, common_suffix)
+                         common_prefix, common_suffix,sort)
 
 
 def test_safeencode():
@@ -48,3 +48,13 @@ def test_common_prefix():
 def test_common_suffix():
     l = ['dabc', '1abc']
     assert common_suffix(l) == 'abc'
+
+
+def test_sort():
+    assert sort('abc21') == '12abc'
+    assert sort('abc21',reversed=True) == 'cba21'
+
+
+
+
+