Check case of uploading twice the same data.

slapos/libnetworkcachetests.py

@@ -33,6 +33,12 @@ class OnlineTest(unittest.TestCase):
     nc = NetworkcacheClient(self.shacache, self.shadir)
     nc.upload(self.test_data)
 
+  def test_upload_twice_same(self):
+    nc = NetworkcacheClient(self.shacache, self.shadir)
+    nc.upload(self.test_data)
+    self.test_data.seek(0)
+    nc.upload(self.test_data)
+
   def test_download(self):
     # prepare some test data