test: check P2SH sigop count for coinbase tx

Author: brunoerg

src/test/script_p2sh_tests.cpp

@@ -364,6 +364,12 @@ BOOST_AUTO_TEST_CASE(AreInputsStandard)
     // 22 P2SH sigops for all inputs (1 for vin[0], 6 for vin[3], 15 for vin[4]
     BOOST_CHECK_EQUAL(GetP2SHSigOpCount(CTransaction(txTo), coins), 22U);
 
+    CMutableTransaction coinbase_tx_mut;
+    coinbase_tx_mut.vin.resize(1);
+    CTransaction coinbase_tx{coinbase_tx_mut};
+    BOOST_CHECK(coinbase_tx.IsCoinBase());
+    BOOST_CHECK_EQUAL(GetP2SHSigOpCount(coinbase_tx, coins), 0U);
+
     CMutableTransaction txToNonStd1;
     txToNonStd1.vout.resize(1);
     txToNonStd1.vout[0].scriptPubKey = GetScriptForDestination(PKHash(key[1].GetPubKey()));