Added test coverage for unicode keyword argument support in method signatures (#536)

tests/fixtures.py

@@ -78,6 +78,11 @@ class CallableObject(object):
         return u"I'm callable"
 
 
+class UnicodeStringObject(object):
+    def __repr__(self):
+        return u'é'.encode('utf-8')
+
+
 with Connection():
     @job(queue='default')
     def decorated_job(x, y):

tests/test_job.py

@@ -399,3 +399,11 @@ class TestJob(RQTestCase):
         job.perform()
 
         self.assertRaises(TypeError, queue.enqueue, fixtures.say_hello, job_id=1234)
+
+    def test_get_call_string_unicode(self):
+        """test call string with unicode keyword arguments"""
+        queue = Queue(connection=self.testconn)
+
+        job = queue.enqueue(fixtures.echo, arg_with_unicode=fixtures.UnicodeStringObject())
+        self.assertIsNotNone(job.get_call_string())
+        job.perform()