Malformed Faults: introduces test for fault handler

This initial patch introduces a test to demonstrate current fault
handling in the VmomiSupport and SoapAdapter components.

partial: vmware#72

pyVmomi/SoapAdapter.py

@@ -582,11 +582,7 @@ def StartElementHandler(self, tag, attr):
       if not self.stack:
          if self.isFault:
             ns, name = self.SplitTag(tag)
-            try:
-               objType = self.LookupWsdlType(ns, name[:-5])
-            except KeyError:
-               message = "{0} was not found in the WSDL".format(name[:-5])
-               raise VmomiMessageFault(message)
+            objType = self.LookupWsdlType(ns, name[:-5])
             # Only top level soap fault should be deserialized as method fault
             deserializeAsLocalizedMethodFault = False
          else:
@@ -1257,12 +1253,13 @@ def InvokeMethod(self, mo, info, args, outerStub=None):
                fd = GzipReader(resp, encoding=GzipReader.GZIP)
             elif encoding == 'deflate':
                fd = GzipReader(resp, encoding=GzipReader.DEFLATE)
-            obj = SoapResponseDeserializer(outerStub).Deserialize(fd, info.result)
-         except:
+            deserializer = SoapResponseDeserializer(outerStub)
+            obj = deserializer.Deserialize(fd, info.result)
+         except Exception as exc:
             conn.close()
             # The server might be sick, drop all of the cached connections.
             self.DropConnections()
-            raise
+            raise exc
          else:
             resp.read()
             self.ReturnConnection(conn)

pyVmomi/VmomiSupport.py

@@ -1023,10 +1023,7 @@ def GuessWsdlType(name):
       # in multiple namespaces, we will load the first type that we
       # encounter and return it.
       for ns in _wsdlTypeMapNSs:
-         try:
-            return GetWsdlType(ns, name)
-         except KeyError:
-            pass
+         return GetWsdlType(ns, name)
       raise KeyError(name)
 
 ## Return a map that contains all the wsdl types