test/functional/forknotify.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2014-2016 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5 """Test the -alertnotify option."""
   6 import os
   7
   8 from test_framework.test_framework import BitcoinTestFramework
   9 from test_framework.util import assert_equal, wait_until
  10
  11 class ForkNotifyTest(BitcoinTestFramework):
  12     def set_test_params(self):
  13         self.num_nodes = 2
  14
  15     def setup_network(self):
  16         self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
  17         self.extra_args = [["-alertnotify=echo %%s >> %s" % self.alert_filename],
  18                            ["-blockversion=211"]]
  19         super().setup_network()
  20
  21     def run_test(self):
  22         # Mine 51 up-version blocks. -alertnotify should trigger on the 51st.
  23         self.nodes[1].generate(51)
  24         self.sync_all()
  25
  26         # Give bitcoind 10 seconds to write the alert notification
  27         wait_until(lambda: os.path.isfile(self.alert_filename) and os.path.getsize(self.alert_filename), timeout=10)
  28
  29         with open(self.alert_filename, 'r', encoding='utf8') as f:
  30             alert_text = f.read()
  31
  32         # Mine more up-version blocks, should not get more alerts:
  33         self.nodes[1].generate(2)
  34         self.sync_all()
  35
  36         with open(self.alert_filename, 'r', encoding='utf8') as f:
  37             alert_text2 = f.read()
  38
  39         self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
  40         assert_equal(alert_text, alert_text2)
  41
  42 if __name__ == '__main__':
  43     ForkNotifyTest().main()