Allow to test against real server.

slapos/libnetworkcachetests.py

@@ -160,13 +160,14 @@ class OnlineMixin:
   def setUp(self):
     self.host = "127.0.0.1"
     self.port = 8080
-    self.tree = tempfile.mkdtemp()
-    self._start_nc()
     self.url = 'http://%s:%s/' % (self.host, self.port)
     self.shacache = os.environ.get('TEST_SHA_CACHE',
       self.url + 'shacache')
     self.shadir = os.environ.get('TEST_SHA_DIR',
       self.url + 'shadir')
+    if not 'TEST_SHA_CACHE' in os.environ and not 'TEST_SHA_DIR' in os.environ:
+      self.tree = tempfile.mkdtemp()
+      self._start_nc()
     self.test_data = tempfile.TemporaryFile()
     self.test_string = str(random.random())
     self.test_data.write(self.test_string)
@@ -175,6 +176,7 @@ class OnlineMixin:
     self.test_data.seek(0)
 
   def tearDown(self):
+    if not 'TEST_SHA_CACHE' in os.environ and not 'TEST_SHA_DIR' in os.environ:
       try:
         httplib.HTTPConnection(self.host, self.port).request('KILL', '/')
       except Exception: