From c1cf067ad754b7856264181b45c22ffe11aa407d Mon Sep 17 00:00:00 2001
From: Emre Yilmaz <emre.yilmaz@markafoni.com>
Date: Fri, 7 Aug 2015 09:15:27 +0300
Subject: [PATCH] Add mutual_friends method and it's tests. this will bump the
 version to 0.0.2

---
 relationships/relationship.py |  6 ++++++
 setup.py                      | 15 +++++++++++++++
 tests.py                      | 21 +++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 setup.py

diff --git a/relationships/relationship.py b/relationships/relationship.py
index 8762201..f7166f8 100644
--- a/relationships/relationship.py
+++ b/relationships/relationship.py
@@ -1,4 +1,5 @@
 
+
 import redis
 
 from keys import key_list as default_key_list
@@ -81,6 +82,11 @@ def friends(self):
             "user:{}:{}".format(self._get_actor(), self.key_list["followers"]),
         )
 
+    def mutual_friends(self, to_id):
+        actor_friends, to_id_friends = self(self._get_actor()).friends(), self(to_id).friends()
+
+        return actor_friends.intersection(to_id_friends)
+
     def followers(self):
         return self._list_call(self.key_list["followers"])
 
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..a594586
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,15 @@
+from setuptools import setup
+
+setup(
+    name='relationships',
+    version='0.0.2',
+    packages=['relationships'],
+    url='http://github.com/emre/relationships',
+    license='MIT',
+    author='Emre Yilmaz',
+    author_email='hello@emre.sh',
+    description='redis backed user relationships',
+    install_requires=['redis'],
+
+)
+
diff --git a/tests.py b/tests.py
index be041e1..07591f4 100644
--- a/tests.py
+++ b/tests.py
@@ -151,6 +151,27 @@ def test_blocked_by(self):
 
         self.assertEqual(r(100).blocked(), set(['10000', '10001', '10002']))
 
+    def test_mutual_friends(self):
+
+        r = Relationship(redis_connection=self.redis_connection)
+
+        r('Emre').follow('Aydan')
+        r('Aydan').follow('Emre')
+
+        r('Emre').follow('Samed')
+        r('Samed').follow('Emre')
+
+        r('Emre').follow('Fka')
+        r('Fka').follow('Emre')
+
+        r('Fka').follow('Aydan')
+        r('Aydan').follow('Fka')
+
+        r('Fka').follow('Samed')
+        r('Samed').follow('Fka')
+
+        self.assertEqual(r('Emre').mutual_friends('Fka'), set(['Samed', 'Aydan']))
+
 
 if __name__ == '__main__':
     unittest.main()
\ No newline at end of file