Fixed vlan subnet issue.

Author: Fernando Ojeda

SoftLayer/managers/vs.py

@@ -367,7 +367,7 @@ def _generate_create_dict(
         if datacenter:
             data["datacenter"] = {"name": datacenter}
 
-        if private_vlan and public_vlan:
+        if private_vlan or public_vlan:
             network_components = self._create_network_components(public_vlan, private_vlan,
                                                                  private_subnet, public_subnet)
             data.update(network_components)

tests/managers/vs_tests.py

@@ -373,7 +373,7 @@ def test_generate_private_vlan(self):
             'localDiskFlag': True,
             'operatingSystemReferenceCode': "STRING",
             'hourlyBillingFlag': True,
-            'primaryBackendNetworkComponent': {"networkVlan": {"id": 1}},
+            'primaryBackendNetworkComponent': {'networkVlan': {'id': 1}},
             'supplementalCreateObjectOptions': {'bootMode': None},
         }