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 on_fuzz_msg_changed(self, index: int):
        self.ui.comboBoxFuzzingLabel.setDisabled(False)

        sel_label_ind = self.ui.comboBoxFuzzingLabel.currentIndex()
        self.ui.comboBoxFuzzingLabel.blockSignals(True)
        self.ui.comboBoxFuzzingLabel.clear()

        if len(self.message.message_type) == 0:
            self.ui.comboBoxFuzzingLabel.setDisabled(True)
            return

        self.ui.comboBoxFuzzingLabel.addItems([lbl.name for lbl in self.message.message_type])
        self.ui.comboBoxFuzzingLabel.blockSignals(False)

        if sel_label_ind < self.ui.comboBoxFuzzingLabel.count():
            self.ui.comboBoxFuzzingLabel.setCurrentIndex(sel_label_ind)
        else:
            self.ui.comboBoxFuzzingLabel.setCurrentIndex(0)

        self.fuzz_table_model.fuzzing_label = self.current_label
        self.fuzz_table_model.update()
        self.update_message_data_string()