1 files changed, 86 insertions, 0 deletions
diff --git a/test/functional/feature_notifications.py b/test/functional/feature_notifications.py
new file mode 100755
index 0000000000..980bef5fc8
--- /dev/null
+++ b/test/functional/feature_notifications.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test the -alertnotify, -blocknotify and -walletnotify options."""
+import os
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, wait_until, connect_nodes_bi
+
+class NotificationsTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 2
+        self.setup_clean_chain = True
+
+    def setup_network(self):
+        self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
+        self.block_filename = os.path.join(self.options.tmpdir, "blocks.txt")
+        self.tx_filename = os.path.join(self.options.tmpdir, "transactions.txt")
+
+        # -alertnotify and -blocknotify on node0, walletnotify on node1
+        self.extra_args = [["-blockversion=2",
+                            "-alertnotify=echo %%s >> %s" % self.alert_filename,
+                            "-blocknotify=echo %%s >> %s" % self.block_filename],
+                           ["-blockversion=211",
+                            "-rescan",
+                            "-walletnotify=echo %%s >> %s" % self.tx_filename]]
+        super().setup_network()
+
+    def run_test(self):
+        self.log.info("test -blocknotify")
+        block_count = 10
+        blocks = self.nodes[1].generate(block_count)
+
+        # wait at most 10 seconds for expected file size before reading the content
+        wait_until(lambda: os.path.isfile(self.block_filename) and os.stat(self.block_filename).st_size >= (block_count * 65), timeout=10)
+
+        # file content should equal the generated blocks hashes
+        with open(self.block_filename, 'r') as f:
+            assert_equal(sorted(blocks), sorted(f.read().splitlines()))
+
+        self.log.info("test -walletnotify")
+        # wait at most 10 seconds for expected file size before reading the content
+        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
+
+        # file content should equal the generated transaction hashes
+        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
+        with open(self.tx_filename, 'r') as f:
+            assert_equal(sorted(txids_rpc), sorted(f.read().splitlines()))
+        os.remove(self.tx_filename)
+
+        self.log.info("test -walletnotify after rescan")
+        # restart node to rescan to force wallet notifications
+        self.restart_node(1)
+        connect_nodes_bi(self.nodes, 0, 1)
+
+        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
+
+        # file content should equal the generated transaction hashes
+        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
+        with open(self.tx_filename, 'r') as f:
+            assert_equal(sorted(txids_rpc), sorted(f.read().splitlines()))
+
+        # Mine another 41 up-version blocks. -alertnotify should trigger on the 51st.
+        self.log.info("test -alertnotify")
+        self.nodes[1].generate(41)
+        self.sync_all()
+
+        # Give bitcoind 10 seconds to write the alert notification
+        wait_until(lambda: os.path.isfile(self.alert_filename) and os.path.getsize(self.alert_filename), timeout=10)
+
+        with open(self.alert_filename, 'r', encoding='utf8') as f:
+            alert_text = f.read()
+
+        # Mine more up-version blocks, should not get more alerts:
+        self.nodes[1].generate(2)
+        self.sync_all()
+
+        with open(self.alert_filename, 'r', encoding='utf8') as f:
+            alert_text2 = f.read()
+
+        self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
+        assert_equal(alert_text, alert_text2)
+
+if __name__ == '__main__':
+    NotificationsTest().main()