'Test the crawler to request the latest block.'

def test_crawl_block_latest(self):

    (node, other, crawler) = self.create_nodes(3)
    TestTrustChainCommunity.create_block(node, other, self._create_target(node, other), {'id': 42})
    TestTrustChainCommunity.crawl_node(crawler, node, self._create_target(crawler, node))
    self.assertBlocksInDatabase(node, 2)
    self.assertBlocksInDatabase(crawler, 2)
    self.assertBlocksAreEqual(node, crawler)
