From ba0bdb381ce186fcb1f53bcb16a66f9178088547 Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Sat, 22 Aug 2026 18:34:47 +0000
Subject: [PATCH] regtest, cmdtest.py regtest: minor cleanups

---
 mmgen/proto/btc/regtest.py | 13 +++++++++----
 test/cmdtest_d/regtest.py  | 28 +++++++++++++++++-----------
 2 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/mmgen/proto/btc/regtest.py b/mmgen/proto/btc/regtest.py
index 8e286889..acd2cbd1 100755
--- a/mmgen/proto/btc/regtest.py
+++ b/mmgen/proto/btc/regtest.py
@@ -65,6 +65,8 @@ class MMGenRegtest(MMGenObject):
 		'mempool',
 		'cli',
 		'wallet_cli')
+
+	# for legacy BDB wallets only:
 	bdb_hdseed = 'beadcafe' * 8
 	bdb_miner_wif = 'cTyMdQ2BgfAsjopRVZrj7AoEGp97pKfrC2NkqLuwHr4KHfPNAKwp'
 	bdb_miner_addrs = {
@@ -104,7 +106,9 @@ class MMGenRegtest(MMGenObject):
 	@property
 	async def miner_wif(self):
 		if not hasattr(self, '_miner_wif'):
-			self._miner_wif = self.bdb_miner_wif if self.bdb_wallet else None
+			self._miner_wif = (
+				self.bdb_miner_wif if self.bdb_wallet else
+				None)
 		return self._miner_wif
 
 	def create_hdseed_wif(self):
@@ -137,6 +141,7 @@ class MMGenRegtest(MMGenObject):
 			gmsg(f'Mined {blocks} block{suf(blocks)}')
 
 	async def create_wallet(self, user):
+		gmsg(f'Creating {capfirst(user)}’s tracking wallet')
 		return await (await self.rpc).icall(
 			'createwallet',
 			wallet_name     = user,
@@ -162,7 +167,6 @@ class MMGenRegtest(MMGenObject):
 		self.d.start(silent=True)
 
 		for user in ('miner', 'bob', 'alice'):
-			gmsg(f'Creating {capfirst(user)}’s tracking wallet')
 			await self.create_wallet(user)
 
 		# BCH and LTC daemons refuse to set HD seed with empty blockchain ("in IBD" error),
@@ -181,8 +185,9 @@ class MMGenRegtest(MMGenObject):
 
 		# Broken litecoind can only mine 431 blocks in regtest mode, so generate just enough
 		# blocks to fund the test suite.  Generation is slow, so divide into chunks:
-		for n in (100, 100, 100, 92): # 392 blocks
-			await self.generate(n)
+		for _ in range(15): # 15 * 25 + 17 = 392 blocks
+			await self.generate(25)
+		await self.generate(17)
 
 		gmsg('Setup complete')
 
diff --git a/test/cmdtest_d/regtest.py b/test/cmdtest_d/regtest.py
index 94588736..d6ddc8aa 100755
--- a/test/cmdtest_d/regtest.py
+++ b/test/cmdtest_d/regtest.py
@@ -514,6 +514,7 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 		self.user_sids = {}
 		self.protos = (self.proto,)
 		self.dump_hex_subdir = os.path.join(self.tmpdir, 'nochg_tx')
+		self.regtest_opts = (['--bdb-wallet'] if self.use_bdb_wallet else [])
 
 	def _add_comments_to_addr_file(self, proto, addrfile, outfile, use_comments=False):
 		silence()
@@ -549,12 +550,15 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 				pass
 		t = self.spawn(
 			'mmgen-regtest',
-			(['--bdb-wallet'] if self.use_bdb_wallet else [])
+			self.regtest_opts
+			+ (['--wallet-src=wallets'] if self.deterministic else [])
 			+ [f'--coin={proto.coin}', '--setup-no-stop-daemon', 'setup'],
 			no_passthru_opts = True)
 		t.expect('Starting')
-		for _ in range(3): t.expect('Creating')
-		for _ in range(5): t.expect('Mined')
+		for _ in range(3):
+			t.expect('Creating')
+		for _ in range(17):
+			t.expect('Mined')
 		t.expect('Setup complete')
 		return t
 
@@ -764,7 +768,8 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 			user, sid, mmtype, 0, addr_range=addr_range, proto=proto)
 		t = self.spawn(
 			'mmgen-regtest',
-			[f'--coin={proto.coin}', 'send', str(addr), str(amt)],
+			self.regtest_opts
+			+ [f'--coin={proto.coin}', 'send', str(addr), str(amt)],
 			no_passthru_opts = True)
 		t.expect(f'Sending {amt} miner {proto.coin}')
 		t.expect('Mined 1 block')
@@ -779,17 +784,18 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 	def user_twview(
 			self,
 			user,
-			chk      = None,
+			*,
 			expect   = None,
+			chk      = None,
 			cmd      = 'twview',
 			opts     = [],
 			sort     = 'age',
 			exit_val = None):
 		t = self.spawn('mmgen-tool', [f'--{user}'] + opts + [cmd] + [f'sort={sort}'], exit_val=exit_val)
-		if chk:
-			t.expect(r'{}\b.*\D{}\b'.format(*chk), regex=True)
 		if expect:
 			t.expect(expect, regex=True)
+		if chk:
+			t.expect(r'{}\b.*\D{}\b'.format(*chk), regex=True)
 		return t
 
 	def bob_twview_noaddrs(self):
@@ -1049,7 +1055,7 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 			outputs_list = '1')
 
 	def bob_alice_bal(self):
-		t = self.spawn('mmgen-regtest', ['balances'])
+		t = self.spawn('mmgen-regtest', self.regtest_opts + ['balances'])
 		ret = t.expect_getend("Bob's balance:").strip()
 		cmp_or_die(rtBals[4], ret)
 		ret = t.expect_getend("Alice's balance:").strip()
@@ -1244,7 +1250,7 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 
 	def generate(self, num_blocks=1, add_opts=[]):
 		int(num_blocks)
-		t = self.spawn('mmgen-regtest', add_opts + ['generate', str(num_blocks)])
+		t = self.spawn('mmgen-regtest', self.regtest_opts + add_opts + ['generate', str(num_blocks)])
 		t.expect(f'Mined {num_blocks} block')
 		return t
 
@@ -1254,7 +1260,7 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 	def _do_mmgen_regtest(self, cmd_args, decode_json=False):
 		ret = self.spawn(
 			'mmgen-regtest',
-			cmd_args,
+			self.regtest_opts + cmd_args,
 			env = cleanup_env(self.cfg),
 			no_msg = True
 		).read().strip()
@@ -1599,7 +1605,7 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 		imsg('Unloading Carol’s tracking wallet')
 		if self.proto.coin == 'BCH':
 			time.sleep(0.2)
-		t = self.spawn('mmgen-regtest', ['cli', 'unloadwallet', 'carol'])
+		t = self.spawn('mmgen-regtest', self.regtest_opts + ['cli', 'unloadwallet', 'carol'])
 		t.ok()
 		wdir = joinpath((await self.rt.rpc).daemon.network_datadir, 'wallets', 'carol')
 		from shutil import rmtree