Introduce -testactivationheight=name@height setting

Author: MarcoFalke

src/chainparams.cpp

@@ -487,15 +487,30 @@ class CRegTestParams : public CChainParams {
     void UpdateActivationParametersFromArgs(const ArgsManager& args);
 };
 
-void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args)
+static void MaybeUpdateHeights(const ArgsManager& args, Consensus::Params& consensus)
 {
-    if (args.IsArgSet("-segwitheight")) {
-        int64_t height = args.GetArg("-segwitheight", consensus.SegwitHeight);
-        if (height < 0 || height >= std::numeric_limits<int>::max()) {
-            throw std::runtime_error(strprintf("Activation height %ld for segwit is out of valid range.", height));
+    for (const std::string& arg : args.GetArgs("-testactivationheight")) {
+        const auto found{arg.find('@')};
+        if (found == std::string::npos) {
+            throw std::runtime_error(strprintf("Invalid format (%s) for -testactivationheight=name@height.", arg));
+        }
+        const auto name{arg.substr(0, found)};
+        const auto value{arg.substr(found + 1)};
+        int32_t height;
+        if (!ParseInt32(value, &height) || height < 0 || height >= std::numeric_limits<int>::max()) {
+            throw std::runtime_error(strprintf("Invalid height value (%s) for -testactivationheight=name@height.", arg));
+        }
+        if (name == "segwit") {
+            consensus.SegwitHeight = int{height};
+        } else {
+            throw std::runtime_error(strprintf("Invalid name (%s) for -testactivationheight=name@height.", arg));
         }
-        consensus.SegwitHeight = static_cast<int>(height);
     }
+}
+
+void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args)
+{
+    MaybeUpdateHeights(args, consensus);
 
     if (!args.IsArgSet("-vbparams")) return;
 

src/chainparamsbase.cpp

@@ -20,7 +20,7 @@ void SetupChainParamsBaseOptions(ArgsManager& argsman)
     argsman.AddArg("-chain=<chain>", "Use the chain <chain> (default: main). Allowed values: main, test, signet, regtest", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-regtest", "Enter regression test mode, which uses a special chain in which blocks can be solved instantly. "
                  "This is intended for regression testing tools and app development. Equivalent to -chain=regtest.", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS);
-    argsman.AddArg("-segwitheight=<n>", "Set the activation height of segwit. (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
+    argsman.AddArg("-testactivationheight=name@height.", "Set the activation height of 'name'. (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-testnet", "Use the test chain. Equivalent to -chain=test.", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-vbparams=deployment:start:end[:min_activation_height]", "Use given start/end times and min_activation_height for specified version bits deployment (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-signet", "Use the signet chain. Equivalent to -chain=signet. Note that the network is defined by the -signetchallenge parameter", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);

test/functional/feature_nulldummy.py

@@ -52,7 +52,7 @@ def set_test_params(self):
         # This script tests NULLDUMMY activation, which is part of the 'segwit' deployment, so we go through
         # normal segwit activation here (and don't use the default always-on behaviour).
         self.extra_args = [[
-            f'-segwitheight={COINBASE_MATURITY + 5}',
+            f'-testactivationheight=segwit@{COINBASE_MATURITY + 5}',
             '-addresstype=legacy',
             '-par=1',  # Use only one script thread to get the exact reject reason for testing
         ]]

test/functional/feature_presegwit_node_upgrade.py

@@ -16,7 +16,7 @@ class SegwitUpgradeTest(BitcoinTestFramework):
     def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
-        self.extra_args = [["-segwitheight=10"]]
+        self.extra_args = [["-testactivationheight=segwit@10"]]
 
     def run_test(self):
         """A pre-segwit node with insufficiently validated blocks needs to redownload blocks"""
@@ -37,14 +37,14 @@ def run_test(self):
         # Restarting the node (with segwit activation height set to 5) should result in a shutdown
         # because the blockchain consists of 3 insufficiently validated blocks per segwit consensus rules.
         node.assert_start_raises_init_error(
-            extra_args=["-segwitheight=5"],
+            extra_args=["-testactivationheight=segwit@5"],
             expected_msg=": Witness data for blocks after height 5 requires "
             f"validation. Please restart with -reindex..{os.linesep}"
             "Please restart with -reindex or -reindex-chainstate to recover.",
         )
 
         # As directed, the user restarts the node with -reindex
-        self.start_node(0, extra_args=["-reindex", "-segwitheight=5"])
+        self.start_node(0, extra_args=["-reindex", "-testactivationheight=segwit@5"])
 
         # With the segwit consensus rules, the node is able to validate only up to block 4
         assert_equal(node.getblockcount(), 4)

test/functional/feature_segwit.py

@@ -78,18 +78,18 @@ def set_test_params(self):
             [
                 "-acceptnonstdtxn=1",
                 "-rpcserialversion=0",
-                "-segwitheight=432",
+                "-testactivationheight=segwit@432",
                 "-addresstype=legacy",
             ],
             [
                 "-acceptnonstdtxn=1",
                 "-rpcserialversion=1",
-                "-segwitheight=432",
+                "-testactivationheight=segwit@432",
                 "-addresstype=legacy",
             ],
             [
                 "-acceptnonstdtxn=1",
-                "-segwitheight=432",
+                "-testactivationheight=segwit@432",
                 "-addresstype=legacy",
             ],
         ]

test/functional/p2p_segwit.py

@@ -192,8 +192,8 @@ def set_test_params(self):
         self.num_nodes = 2
         # This test tests SegWit both pre and post-activation, so use the normal BIP9 activation.
         self.extra_args = [
-            ["-acceptnonstdtxn=1", "-segwitheight={}".format(SEGWIT_HEIGHT), "[email protected]"],
-            ["-acceptnonstdtxn=0", "-segwitheight={}".format(SEGWIT_HEIGHT)],
+            ["-acceptnonstdtxn=1", f"-testactivationheight=segwit@{SEGWIT_HEIGHT}", "[email protected]"],
+            ["-acceptnonstdtxn=0", f"-testactivationheight=segwit@{SEGWIT_HEIGHT}"],
         ]
         self.supports_cli = False