test: refactor: replace OP_1/OP_TRUE magic numbers by constants

test/functional/wallet_taproot.py

@@ -10,7 +10,12 @@ from decimal import Decimal
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 from test_framework.descriptors import descsum_create
-from test_framework.script import (CScript, OP_CHECKSIG, taproot_construct)
+from test_framework.script import (
+    CScript,
+    OP_1,
+    OP_CHECKSIG,
+    taproot_construct,
+)
 from test_framework.segwit_addr import encode_segwit_address
 
 # xprvs/xpubs, and m/* derived x-only pubkeys (created using independent implementation)
@@ -165,7 +170,7 @@ def pk(hex_key):
 def compute_taproot_address(pubkey, scripts):
     """Compute the address for a taproot output with given inner key and scripts."""
     tap = taproot_construct(pubkey, scripts)
-    assert tap.scriptPubKey[0] == 0x51
+    assert tap.scriptPubKey[0] == OP_1
     assert tap.scriptPubKey[1] == 0x20
     return encode_segwit_address("bcrt", 1, tap.scriptPubKey[2:])