Test to list all namespaces.py

def test_to_list_all_namespaces(k8s_client):
    ret = k8s_client.list_namespace()

    nscount = len(ret.items)
    print(nscount)
    assert(nscount > 0)
   
    # Iterate through all the namespaces in the K8s cluster and list it down
    for item in ret.items:
        print(item.metadata.name)