diff --git a/chainsyncer/unittest/base.py b/chainsyncer/unittest/base.py
index d924834..2674d85 100644
--- a/chainsyncer/unittest/base.py
+++ b/chainsyncer/unittest/base.py
@@ -128,44 +128,3 @@ class MockDriver(SyncDriver):
             self.process_single(conn, block, tx)
             item.next()
             i += 1
-
-
-#class TestSyncer(HistorySyncer):
-#    """Unittest extension of history syncer driver.
-#
-#    :param backend: Syncer backend
-#    :type backend: chainsyncer.backend.base.Backend implementation
-#    :param chain_interface: Chain interface
-#    :type chain_interface: chainlib.interface.ChainInterface implementation
-#    :param tx_counts: List of integer values defining how many mock transactions to generate per block. Mock blocks will be generated for each element in list.
-#    :type tx_counts: list
-#    """
-#
-#    def __init__(self, backend, chain_interface, tx_counts=[]):
-#        self.tx_counts = tx_counts
-#        super(TestSyncer, self).__init__(backend, chain_interface)
-#
-#
-#    def get(self, conn):
-#        """Implements the block getter of chainsyncer.driver.base.Syncer.
-#
-#        :param conn: RPC connection
-#        :type conn: chainlib.connection.RPCConnection
-#        :raises NoBlockForYou: End of mocked block array reached
-#        :rtype: chainsyncer.unittest.base.MockBlock
-#        :returns: Mock block.
-#        """
-#        (pair, fltr) = self.backend.get()
-#        (target_block, fltr) = self.backend.target()
-#        block_height = pair[0]
-#
-#        if block_height == target_block:
-#            self.running = False
-#            raise NoBlockForYou()
-#
-#        block_txs = []
-#        if block_height < len(self.tx_counts):
-#            for i in range(self.tx_counts[block_height]):
-#                block_txs.append(add_0x(os.urandom(32).hex()))
-#     
-#        return MockBlock(block_height, block_txs)