fixed type error in test

tangostationcontrol/tangostationcontrol/test/clients/test_snmp_client.py

@@ -59,7 +59,7 @@ class server_imitator:
                 for _i in range(dims[0]):
                     read_val.append((None, snmp_type(1)))
         else:
-            raise Exception("Image not yet supported :(")
+            raise Exception("Image not supported :(")
 
         return read_val
 
@@ -72,14 +72,14 @@ class server_imitator:
         if dims == self.dim_list["scalar"]:
             snmp_type_dict = {hlapi.ObjectIdentity:"1.3.6.1.2.1.1.1.0.1",
                             hlapi.IpAddress: "1.1.1.1",
-                            str: "1"}
+                            hlapi.OctetString: "1"}
             check_val = 1
             for k,v in snmp_type_dict.items():
                 if snmp_type is k:  check_val = v
         elif dims == self.dim_list["spectrum"]:
             snmp_type_dict = {hlapi.ObjectIdentity:["1.3.6.1.2.1.1.1.0.1"] * dims[0],
                             hlapi.IpAddress: ["1.1.1.1"] * dims[0],
-                            str: ["1"] * dims[0]}
+                            hlapi.OctetString: ["1"] * dims[0]}
             check_val = check_val = [1] * dims[0]
             for k,v in snmp_type_dict.items():
                 if snmp_type is k:  check_val = v