ERROR: Add failing test to check compatibility with old signet

Author: jtimon

test/functional/feature_signet.py

@@ -25,20 +25,26 @@ def add_options(self, parser):
                             help='Path to write down the generated config for signet into files.')
 
     def set_test_params(self):
+        self.chain = 'signet'
         self.setup_clean_chain = True
-        self.num_nodes = 3
-        self.extra_args = [[
-            '-fallbackfee=0.00001',
-            '-addresstype=legacy',
-            '-deprecatedrpc=validateaddress',
-            '-bech32_hrp=sb',
-            '-pchmessagestart=F0C7706A',
-            '-pubkeyprefix=125',
-            '-scriptprefix=87',
-            '-secretprefix=217',
-            '-extpubkeyprefix=043587CF',
-            '-extprvkeyprefix=04358394',
-        ]] * 3
+        self.num_nodes = 4
+        self.extra_args = []
+        for i in range(self.num_nodes):
+            self.extra_args.append([
+                '-printtoconsole=1'
+                '-fallbackfee=0.00001',
+                '-addresstype=legacy',
+                '-deprecatedrpc=validateaddress',
+                '-bech32_hrp=sb',
+                '-pchmessagestart=F0C7706A',
+                '-pubkeyprefix=125',
+                '-scriptprefix=87',
+                '-secretprefix=217',
+                '-extpubkeyprefix=043587CF',
+                '-extprvkeyprefix=04358394',
+            ])
+        self.extra_args[3].append('-con_genesis_style=signet_old')
+        self.extra_args[3].append('-signet_blockscript=512103e464a9f3070da4d3e0b34ce971ff36f3e07c47a8f4beadf32e8ea7e2afa8a82451ae')
 
     def setup_network(self):
 
@@ -73,6 +79,11 @@ def setup_network(self):
 
     def run_test(self):
 
+        self.log.info('Check compatibility with old signet...')
+        self.start_node(3)
+        assert_equal(self.nodes[3].getblockhash(0), '22861f488a5c6cb033a843e476581a8abf5b82a34926babfde1241ed97ba268e')
+
+        self.log.info('Generate a few blocks...')
         self.nodes[0].generate(100)
         self.sync_all([self.nodes[0:1]])
         self.nodes[1].generate(100)