def test_block_publisher_doesnt_finalize_block(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_wait_certificate, mock_poet_settings_view,
            mock_block_wrapper):
        """ Test verifies that PoET Block Publisher doesn't finalize
            a candidate block that doesn't have a valid wait certificate.
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_wait_certificate that pretends to fail
        mock_wait_certificate.create_wait_certificate.side_effect = \
            ValueError('Unit test fake failure')

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState().create_mock_consensus_state()

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        # create mock_batch_publisher
        mock_batch_publisher = mock.Mock(
            identity_signing_key=signing.generate_private_key())

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        with mock.patch('sawtooth_poet.poet_consensus.poet_block_publisher.'
                        'LOGGER') as mock_logger:
            block_publisher = \
                poet_block_publisher.PoetBlockPublisher(
                    block_cache=mock_block_cache,
                    state_view_factory=mock_state_view_factory,
                    batch_publisher=mock_batch_publisher,
                    data_dir=self._temp_dir,
                    config_dir=self._temp_dir,
                    validator_id='validator_deadbeef')

            with mock.patch('sawtooth_poet.poet_consensus.'
                            'poet_block_publisher.json') as _:
                self.assertFalse(
                    block_publisher.finalize_block(
                        block_header=mock_block.header))

            # Could be a hack, but verify that the appropriate log message is
            # generated - so we at least have some faith that the failure was
            # because of what we are testing and not something else.  I know
            # that this is fragile if the log message is changed, so would
            # accept any suggestions on a better way to verify that the
            # function fails for the reason we expect.

            (message, *_), _ = mock_logger.error.call_args
            self.assertTrue('Failed to create wait certificate: ' in message)
Ejemplo n.º 2
0
    def test_signup_info_not_committed_within_allowed_delay(
            self,
            mock_utils,
            mock_validator_registry_view,
            mock_consensus_state,
            mock_poet_enclave_factory,
            mock_consensus_state_store,
            mock_poet_key_state_store,
            mock_signup_info,
            mock_poet_settings_view,
            mock_block_wrapper):
        """ Test verifies that PoET Block Publisher fails if
        a validator's signup info was not committed to
        the block chain within the allowed configured delay
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff',
                    nonce='nonce'))

        # create a mock_wait_certificate that does nothing in check_valid
        mock_wait_certificate = mock.Mock()
        mock_wait_certificate.check_valid.return_value = None

        mock_utils.deserialize_wait_certificate.return_value = \
            mock_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state(
            committed_too_late=True)
        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # Create mock key state
        mock_poet_key_state_store.return_value.__getitem__.return_value = \
            mock.Mock(
                sealed_signup_data='sealed signup data',
                has_been_refreshed=False)

        # create mock_signup_info
        mock_signup_info.create_signup_info.return_value = \
            mock.Mock(
                poet_public_key='poet public key',
                proof_data='proof data',
                anti_sybil_id='anti-sybil ID',
                sealed_signup_data='sealed signup data')
        mock_signup_info.block_id_to_nonce.return_value = 'nonce'
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        context = create_context('secp256k1')
        private_key = context.new_random_private_key()
        crypto_factory = CryptoFactory(context)
        signer = crypto_factory.new_signer(private_key)

        mock_batch_publisher = mock.Mock(identity_signer=signer)

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        with mock.patch('sawtooth_poet.poet_consensus.poet_block_publisher.'
                        'LOGGER') as mock_logger:
            block_publisher = \
                poet_block_publisher.PoetBlockPublisher(
                    block_cache=mock_block_cache,
                    state_view_factory=mock_state_view_factory,
                    batch_publisher=mock_batch_publisher,
                    data_dir=self._temp_dir,
                    config_dir=self._temp_dir,
                    validator_id='validator_deadbeef')

            self.assertFalse(
                block_publisher.initialize_block(
                    block_header=mock_block.header))

            # Could be a hack, but verify that the appropriate log message is
            # generated - so we at least have some faith that the failure was
            # because of what we are testing and not something else.  I know
            # that this is fragile if the log message is changed, so would
            # accept any suggestions on a better way to verify that the
            # function fails for the reason we expect.
            self.assertTrue(
                any(
                    'Validator signup information not committed in a timely '
                    'manner.' in call[0][0] for call in
                    mock_logger.info.call_args_list))

            # check that create.signup_info() was called to create
            # the validator registry payload with new set of keys
            self.assertTrue(mock_signup_info.create_signup_info.called)
Ejemplo n.º 3
0
    def test_block_publisher_doesnt_claim_readiness(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_wait_time, mock_poet_settings_view,
            mock_block_wrapper):
        """ Test verifies that PoET Block Publisher doesn't
         claims readiness if the wait timer hasn't expired
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state()

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # Create mock key state
        mock_poet_key_state_store.return_value.__getitem__.return_value = \
            mock.Mock(
                sealed_signup_data='sealed signup data',
                has_been_refreshed=False)

        # create mock_signup_info
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        context = create_context('secp256k1')
        private_key = context.new_random_private_key()
        crypto_factory = CryptoFactory(context)
        signer = crypto_factory.new_signer(private_key)

        mock_batch_publisher = mock.Mock(identity_signer=signer)

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # create a mock_wait_timer that hasn't expired yet
        my_wait_time = mock.Mock()
        my_wait_time.has_expired.return_value = False

        mock_wait_time.create_wait_timer.return_value = my_wait_time

        # create mock_poet_enclave_module
        mock_poet_enclave_module = mock.Mock()
        mock_poet_enclave_module.return_value = \
            mock_poet_enclave_factory.get_poet_enclave_module.return_value

        # check test
        block_publisher = \
            poet_block_publisher.PoetBlockPublisher(
                block_cache=mock_block_cache,
                state_view_factory=mock_state_view_factory,
                batch_publisher=mock_batch_publisher,
                data_dir=self._temp_dir,
                config_dir=self._temp_dir,
                validator_id='validator_deadbeef')

        # check initialize_block() first to set wait_timer
        self.assertTrue(
            block_publisher.initialize_block(block_header=mock_block.header))

        # check that block_publisher only claims readiness
        # when the wait_timer has expired
        self.assertFalse(
            block_publisher.check_publish_block(
                block_header=mock_block.header))
    def test_block_publisher_finalize_block(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_wait_certificate, mock_poet_settings_view,
            mock_block_wrapper):
        """ Test verifies that PoET Block Publisher finalizes the block,
            meaning that the candidate block is good and should be generated.
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_wait_certificate that does nothing in check_valid
        my_wait_certificate = mock.Mock()
        my_wait_certificate.check_valid.return_value = None
        mock_wait_certificate.create_wait_certificate.return_value = \
            my_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState().create_mock_consensus_state()

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        # create mock_batch_publisher
        mock_batch_publisher = mock.Mock(
            identity_signing_key=signing.generate_private_key())

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        block_publisher = \
            poet_block_publisher.PoetBlockPublisher(
                block_cache=mock_block_cache,
                state_view_factory=mock_state_view_factory,
                batch_publisher=mock_batch_publisher,
                data_dir=self._temp_dir,
                config_dir=self._temp_dir,
                validator_id='validator_deadbeef')

        with mock.patch('sawtooth_poet.poet_consensus.'
                        'poet_block_publisher.json') as _:
            self.assertTrue(
                block_publisher.finalize_block(block_header=mock_block.header))
Ejemplo n.º 5
0
    def test_no_validator_registry(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_poet_settings_view, mock_block_wrapper):
        """ Test verifies that PoET Block Publisher fails
        if a validator doesn't have any signup info
        in the validator registry (the validator is not listed
        in the validator registry)
        """

        # create a mock_validator_registry_view that throws KeyError
        mock_validator_registry_view.return_value.get_validator_info. \
            side_effect = KeyError('Non-existent validator')

        # create a mock_wait_certificate that does nothing in check_valid
        mock_wait_certificate = mock.Mock()
        mock_wait_certificate.check_valid.return_value = None

        mock_utils.deserialize_wait_certificate.return_value = \
            mock_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state()

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_poet_key_state_store.return_value = \
            _MockPoetKeyStateStore(active_key=None)

        # create mock_signup_info
        mock_signup_info.create_signup_info.return_value = \
            mock.Mock(
                poet_public_key='poet public key',
                proof_data='proof data',
                anti_sybil_id='anti-sybil ID',
                sealed_signup_data='sealed signup data')
        mock_signup_info.block_id_to_nonce.return_value = 'nonce'

        # create mock_batch_publisher
        context = create_context('secp256k1')
        private_key = context.new_random_private_key()
        crypto_factory = CryptoFactory(context)
        signer = crypto_factory.new_signer(private_key)
        mock_batch_publisher = mock.Mock(identity_signer=signer)

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        block_publisher = \
            poet_block_publisher.PoetBlockPublisher(
                block_cache=mock_block_cache,
                state_view_factory=mock_state_view_factory,
                batch_publisher=mock_batch_publisher,
                data_dir=self._temp_dir,
                config_dir=self._temp_dir,
                validator_id='validator_deadbeef')

        self.assertFalse(
            block_publisher.initialize_block(block_header=mock_block.header))

        # check that batch publisher was called to send out
        # the txn header and txn for the validator registry update
        self.assertTrue(mock_batch_publisher.send.called)
Ejemplo n.º 6
0
    def test_z_policy(self, mock_utils, mock_validator_registry_view,
                      mock_consensus_state, mock_poet_enclave_factory,
                      mock_consensus_state_store, mock_poet_key_state_store,
                      mock_signup_info, mock_poet_settings_view,
                      mock_block_wrapper):
        """ Z Policy: Test verifies that PoET Block Publisher fails
        if a validator attempts to claim more blocks frequently than is allowed
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_wait_certificate that does nothing in check_valid
        mock_wait_certificate = mock.Mock()
        mock_wait_certificate.check_valid.return_value = None

        mock_utils.deserialize_wait_certificate.return_value = \
            mock_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state(
            claiming_too_frequently=True)

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # Create mock key state
        mock_poet_key_state_store.return_value.__getitem__.return_value = \
            mock.Mock(
                sealed_signup_data='sealed signup data',
                has_been_refreshed=False)

        # create mock_signup_info
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        context = create_context('secp256k1')
        private_key = context.new_random_private_key()
        crypto_factory = CryptoFactory(context)
        signer = crypto_factory.new_signer(private_key)

        mock_batch_publisher = mock.Mock(identity_signer=signer)

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_public_key = \
            '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        with mock.patch('sawtooth_poet.poet_consensus.poet_block_publisher.'
                        'LOGGER') as mock_logger:
            block_publisher = \
                poet_block_publisher.PoetBlockPublisher(
                    block_cache=mock_block_cache,
                    state_view_factory=mock_state_view_factory,
                    batch_publisher=mock_batch_publisher,
                    data_dir=self._temp_dir,
                    config_dir=self._temp_dir,
                    validator_id='validator_deadbeef')

            self.assertFalse(
                block_publisher.initialize_block(
                    block_header=mock_block.header))

            # Could be a hack, but verify that the appropriate log message is
            # generated - so we at least have some faith that the failure was
            # because of what we are testing and not something else.  I know
            # that this is fragile if the log message is changed, so would
            # accept any suggestions on a better way to verify that the
            # function fails for the reason we expect.

            (message, *_), _ = mock_logger.info.call_args
            self.assertTrue('is claiming blocks too ' 'frequently' in message)
Ejemplo n.º 7
0
    def test_block_publisher_success_case(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_poet_config_view, mock_block_wrapper):
        """ Test verifies that PoET Block Publisher succeeds
        if a validator successfully passes all criteria necessary
        to publish a block
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_wait_certificate that does nothing in check_valid
        mock_wait_certificate = mock.Mock()
        mock_wait_certificate.check_valid.return_value = None

        mock_utils.deserialize_wait_certificate.return_value = \
            mock_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state()

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # create mock_signup_info
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        mock_batch_publisher = mock.Mock(
            identity_signing_key=signing.generate_privkey())

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_pubkey = '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        block_publisher = \
            poet_block_publisher.PoetBlockPublisher(
                block_cache=mock_block_cache,
                state_view_factory=mock_state_view_factory,
                batch_publisher=mock_batch_publisher,
                data_dir=self._temp_dir,
                config_dir=self._temp_dir,
                validator_id='validator_deadbeef')

        self.assertTrue(
            block_publisher.initialize_block(block_header=mock_block.header))
Ejemplo n.º 8
0
    def test_k_policy(self, mock_utils, mock_validator_registry_view,
                      mock_consensus_state, mock_poet_enclave_factory,
                      mock_consensus_state_store, mock_poet_key_state_store,
                      mock_signup_info, mock_poet_config_view,
                      mock_block_wrapper):
        """ K Policy: Test verifies that PoET Block Publisher fails if
            if a validator attempts to claim more blocks than is allowed
            by the key block claim limit
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_wait_certificate that does nothing in check_valid
        mock_wait_certificate = mock.Mock()
        mock_wait_certificate.check_valid.return_value = None

        mock_utils.deserialize_wait_certificate.return_value = \
            mock_wait_certificate

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = MockConsensusState.create_mock_consensus_state(
            claimed_block_limit=True)

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # create mock_signup_info
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        mock_batch_publisher = mock.Mock(
            identity_signing_key=signing.generate_privkey())

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_pubkey = '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # check test
        with mock.patch('sawtooth_poet.poet_consensus.poet_block_publisher.'
                        'LOGGER') as mock_logger:
            block_publisher = \
                poet_block_publisher.PoetBlockPublisher(
                    block_cache=mock_block_cache,
                    state_view_factory=mock_state_view_factory,
                    batch_publisher=mock_batch_publisher,
                    data_dir=self._temp_dir,
                    config_dir=self._temp_dir,
                    validator_id='validator_deadbeef')

            self.assertFalse(
                block_publisher.initialize_block(
                    block_header=mock_block.header))

            # Could be a hack, but verify that the appropriate log message is
            # generated - so we at least have some faith that the failure was
            # because of what we are testing and not something else.  I know
            # that this is fragile if the log message is changed, so would
            # accept any suggestions on a better way to verify that the
            # function fails for the reason we expect.

            (message, *_), _ = mock_logger.error.call_args
            self.assertTrue('Validator has reached maximum number of '
                            'blocks with key pair' in message)

            # check that create.signup_info() wasn't called
            # to renew the set of keys
            self.assertFalse(mock_signup_info.create_signup_info.called)
    def test_block_publisher_claim_readiness(
            self, mock_utils, mock_validator_registry_view,
            mock_consensus_state, mock_poet_enclave_factory,
            mock_consensus_state_store, mock_poet_key_state_store,
            mock_signup_info, mock_wait_time, mock_poet_config_view,
            mock_block_wrapper):
        """ Test verifies that PoET Block Publisher only claims
         readiness if the wait timer has expired
        """

        # create a mock_validator_registry_view with
        # get_validator_info that does nothing
        mock_validator_registry_view.return_value.get_validator_info. \
            return_value = \
            ValidatorInfo(
                name='validator_001',
                id='validator_deadbeef',
                signup_info=SignUpInfo(
                    poet_public_key='00112233445566778899aabbccddeeff'))

        # create a mock_consensus_state that returns a mock with
        # the following settings:
        mock_state = mock.Mock()
        mock_state.validator_signup_was_committed_too_late.return_value = False
        mock_state.validator_has_claimed_block_limit.return_value = False
        mock_state.validator_is_claiming_too_early.return_value = False
        mock_state.validator_is_claiming_too_frequently.return_value = False

        mock_consensus_state.consensus_state_for_block_id.return_value = \
            mock_state

        mock_consensus_state_store.return_value.__getitem__.return_value = \
            mock_consensus_state

        # create mock_signup_info
        mock_signup_info.unseal_signup_data.return_value = \
            '00112233445566778899aabbccddeeff'

        # create mock_batch_publisher
        mock_batch_publisher = mock.Mock(
            identity_signing_key=signing.generate_privkey())

        mock_block_cache = mock.MagicMock()
        mock_state_view_factory = mock.Mock()

        # create mock_block_header with the following fields
        mock_block = mock.Mock(identifier='0123456789abcdefedcba9876543210')
        mock_block.header.signer_pubkey = '90834587139405781349807435098745'
        mock_block.header.previous_block_id = '2'
        mock_block.header.block_num = 1
        mock_block.header.state_root_hash = '6'
        mock_block.header.batch_ids = '4'

        # create a mock_wait_timer that has expired
        my_wait_time = mock.Mock()
        my_wait_time.has_expired.return_value = True

        mock_wait_time.create_wait_timer.return_value = my_wait_time

        # create mock_poet_enclave_module
        mock_poet_enclave_module = mock.Mock()
        mock_poet_enclave_module.return_value = \
            mock_poet_enclave_factory.get_poet_enclave_module.return_value

        # check test
        block_publisher = \
            poet_block_publisher.PoetBlockPublisher(
                block_cache=mock_block_cache,
                state_view_factory=mock_state_view_factory,
                batch_publisher=mock_batch_publisher,
                data_dir=self._temp_dir,
                config_dir=self._temp_dir,
                validator_id='validator_deadbeef')

        # check initialize_block() first to set wait_timer
        self.assertTrue(
            block_publisher.initialize_block(block_header=mock_block.header))

        # check that block_publisher only claims readiness
        # when the wait_timer has expired
        self.assertTrue(
            block_publisher.check_publish_block(
                block_header=mock_block.header))