slapproxy: Add a no-op computerBang method for compatibility with recent slapos

slapos/proxy/views.py

@@ -732,6 +732,10 @@ def softwareInstanceRename():
 def getComputerPartitionStatus():
   return xml_marshaller.xml_marshaller.dumps('Not implemented.')
 
+@app.route('/computerBang', methods=['POST'])
+def computerBang():
+  return xml_marshaller.xml_marshaller.dumps('')
+
 @app.route('/getComputerPartitionCertificate', methods=['GET'])
 def getComputerPartitionCertificate():
   # proxy does not use partition certificate, but client calls this.

slapos/tests/slapproxy/__init__.py

@@ -271,6 +271,14 @@ class TestInformation(BasicMixin, unittest.TestCase):
     response = xml_marshaller.xml_marshaller.loads(rv.data)
     self.assertEquals({'certificate': '', 'key': ''}, response)
 
+  def test_computerBang(self):
+    """
+    Tests that computerBang method is implemented in slapproxy.
+    """
+    rv = self.app.post( '/computerBang?computer_id=%s' % ( self.computer_id))
+    response = xml_marshaller.xml_marshaller.loads(rv.data)
+    self.assertEquals('', response)
+
 class MasterMixin(BasicMixin, unittest.TestCase):
   """
   Define advanced tool for test proxy simulating behavior slap library tools