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 search(self, search_base=None, search_scope=None,
               search_filter=None, attributes=None, paged_size=5,
               size_limit=0, paged_cookie=None):
        s_filter = list()
        candidates = list()
        self.response = list()
        self.result = dict()

        try:
            if isinstance(search_filter, bytes):
                # We need to convert to unicode otherwise pyparsing will not
                # find the u"ö"
                search_filter = to_unicode(search_filter)
            expr = Connection._parse_filter()
            s_filter = expr.parseString(search_filter).asList()[0]
        except pyparsing.ParseBaseException as exx:
            # Just for debugging purposes
            s = "{!s}".format(exx)

        for item in s_filter:
            if item[0] in self.operation:
                candidates = self.operation.get(item[0])(search_base,
                                                         s_filter)
        self.response = Connection._deDuplicate(candidates)

        return True