Merge #11121: TestNode tidyups

7148b74dc [tests] Functional tests must explicitly set num_nodes (John Newbery)
5448a1471 [tests] don't override __init__() in individual tests (John Newbery)
6cf094a02 [tests] Avoid passing around member variables in test_framework (John Newbery)
36b626867 [tests] TestNode: separate add_node from start_node (John Newbery)
be2a2ab6a [tests] fix - use rpc_timeout as rpc timeout (John Newbery)

Pull request description:

  Some additional tidyups after the introduction of TestNode:

  - commit 1 makes TestNode use the correct rpc timeout. This should have been included in #11077
  - commit 2 separates `add_node()` from `start_node()` as originally discussed here: https://github.com/bitcoin/bitcoin/pull/10556#discussion_r121161453 with @kallewoof . The test writer no longer needs to assign to `self.nodes` when starting/stopping nodes.
  - commit 3 adds a `set_test_params()` method, so individual tests don't need to override `__init__()` and call `super().__init__()`

Tree-SHA512: 0adb030623b96675b5c29e2890ce99ccd837ed05f721d0c91b35378c5ac01b6658174aac12f1f77402e1d38b61f39b3c43b4df85c96952565dde1cda05b0db84

1 files changed, 4 insertions, 6 deletions

diff --git a/test/functional/p2p-segwit.py b/test/functional/p2p-segwit.py
index de69cba393..943bc2c6d2 100755
--- a/test/functional/p2p-segwit.py
+++ b/test/functional/p2p-segwit.py
@@ -32,8 +32,8 @@ def get_virtual_size(witness_block):
     return vsize
 
 class TestNode(NodeConnCB):
-    def __init__(self):
-        super().__init__()
+    def set_test_params(self):
+        self.num_nodes = 3
         self.getdataset = set()
 
     def on_getdata(self, conn, message):
@@ -108,9 +108,7 @@ def sign_P2PK_witness_input(script, txTo, inIdx, hashtype, value, key):
 
 
 class SegWitTest(BitcoinTestFramework):
-
-    def __init__(self):
-        super().__init__()
+    def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 3
         self.extra_args = [["-whitelist=127.0.0.1"], ["-whitelist=127.0.0.1", "-acceptnonstdtxn=0"], ["-whitelist=127.0.0.1", "-vbparams=segwit:0:0"]]
@@ -1495,7 +1493,7 @@ class SegWitTest(BitcoinTestFramework):
 
         # Restart with the new binary
         self.stop_node(node_id)
-        self.nodes[node_id] = self.start_node(node_id, self.options.tmpdir)
+        self.start_node(node_id, extra_args=[])
         connect_nodes(self.nodes[0], node_id)
 
         sync_blocks(self.nodes)