def deploy_service_registry_and_set_urls(
    private_keys, web3, contract_manager, service_registry_address
) -> Tuple[ServiceRegistry, List[str]]:
    urls = ["http://foo", "http://boo", "http://coo"]
    c1_client = JSONRPCClient(web3, private_keys[0])
    c1_service_proxy = ServiceRegistry(
        jsonrpc_client=c1_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )
    c2_client = JSONRPCClient(web3, private_keys[1])
    c2_service_proxy = ServiceRegistry(
        jsonrpc_client=c2_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )
    c3_client = JSONRPCClient(web3, private_keys[2])
    c3_service_proxy = ServiceRegistry(
        jsonrpc_client=c3_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )

    # Test that getting a random service for an empty registry returns None
    pfs_address = get_random_service(c1_service_proxy, "latest")
    assert pfs_address is None

    # Test that setting the urls works
    c1_service_proxy.set_url(urls[0])
    c2_service_proxy.set_url(urls[1])
    c3_service_proxy.set_url(urls[2])

    return c1_service_proxy, urls
def test_methods_etc(self):
        mock_session = Mock()
        mock_session.bind = "the bind"

        sess = scoped_session(lambda: mock_session)

        sess.add("add")
        sess.delete("delete")

        sess.get("Cls", 5)

        eq_(sess.bind, "the bind")

        eq_(
            mock_session.mock_calls,
            [
                mock.call.add("add", _warn=True),
                mock.call.delete("delete"),
                mock.call.get(
                    "Cls",
                    5,
                    options=None,
                    populate_existing=False,
                    with_for_update=None,
                    identity_token=None,
                    execution_options=None,
                ),
            ],
        )

        with mock.patch(
            "sqlalchemy.orm.session.object_session"
        ) as mock_object_session:
            sess.object_session("foo")

        eq_(mock_object_session.mock_calls, [mock.call("foo")])