message: test: assert on mediantime in getblockheader and getblockchaininfo
diff: @@ -50,6 +50,7 @@ from test_framework.wallet import MiniWallet
  TIME_RANGE_STEP = 600 # ten-minute steps
  +TIME_RANGE_MTP = TIME_GENESIS_BLOCK + 194 * TIME_RANGE_STEP
  TIME_RANGE_END = TIME_GENESIS_BLOCK + 200 * TIME_RANGE_STEP
  @@ -103,6 +104,7 @@ class BlockchainTest(BitcoinTestFramework):
  res = self.nodes[0].getblockchaininfo()
  assert_equal(res['time'], TIME_RANGE_END - TIME_RANGE_STEP)
  + assert_equal(res['mediantime'], TIME_RANGE_MTP)
  # result should have these additional pruning keys if manual pruning is enabled
  assert_equal(sorted(res.keys()), sorted(['pruneheight', 'automatic_pruning'] + keys))
  @@ -310,7 +312,7 @@ class BlockchainTest(BitcoinTestFramework):
  assert_is_hash_string(header['merkleroot'])
  assert_is_hash_string(header['bits'], length=None)
  assert isinstance(header['time'], int)
  - assert isinstance(header['mediantime'], int)
  + assert_equal(header['mediantime'], TIME_RANGE_MTP)
  assert isinstance(header['nonce'], int)
  assert isinstance(header['version'], int)
  assert isinstance(int(header['versionHex'], 16), int)
  