[tests] TestNode: separate add_node from start_node

Separates the act of creating a TestNode object from starting the node.
The test_framework now keeps track of its list of TestNodes, and test
writers can call start_node() and stop_node() without having to update
the self.nodes list.

1 files changed, 3 insertions, 10 deletions

diff --git a/test/functional/forknotify.py b/test/functional/forknotify.py
index 3bcf0a6795..3a2a927098 100755
--- a/test/functional/forknotify.py
+++ b/test/functional/forknotify.py
@@ -7,7 +7,6 @@ import os
 import time
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
 
 class ForkNotifyTest(BitcoinTestFramework):
 
@@ -17,18 +16,12 @@ class ForkNotifyTest(BitcoinTestFramework):
         self.setup_clean_chain = False
 
     def setup_network(self):
-        self.nodes = []
         self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
         with open(self.alert_filename, 'w', encoding='utf8'):
             pass  # Just open then close to create zero-length file
-        self.nodes.append(self.start_node(0, self.options.tmpdir,
-                            ["-blockversion=2", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""]))
-        # Node1 mines block.version=211 blocks
-        self.nodes.append(self.start_node(1, self.options.tmpdir,
-                                ["-blockversion=211"]))
-        connect_nodes(self.nodes[1], 0)
-
-        self.sync_all()
+        self.extra_args = [["-blockversion=2", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""],
+                           ["-blockversion=211"]]
+        super().setup_network()
 
     def run_test(self):
         # Mine 51 up-version blocks