tests: fix elementsd failure for option_simple_close test.

tests/test_closing.py: disregard elements `fee` outputs on `test_simple_close_closer_pays_fee`.

Author: nGoline

tests/test_closing.py

@@ -4208,7 +4208,9 @@ def test_simple_close_closer_pays_fee(node_factory, bitcoind):
     # balance minus the fee.  Either (l1-closer, l2-closee) or the reverse is fine.
     txid = only_one(bitcoind.rpc.getrawmempool())
     tx = bitcoind.rpc.getrawtransaction(txid, True)
-    out_sats = sorted(int(round(v['value'] * 10**8)) for v in tx['vout'])
+    # Elements adds an explicit fee vout (scriptPubKey.type == 'fee'); filter it out.
+    real_vouts = [v for v in tx['vout'] if v['scriptPubKey'].get('type') != 'fee']
+    out_sats = sorted(int(round(v['value'] * 10**8)) for v in real_vouts)
     assert len(out_sats) == 2, f"Expected 2 outputs in closing tx, got {out_sats}"
 
     if l2_bal in out_sats:
@@ -4253,10 +4255,12 @@ def test_simple_close_dust_output_omitted(node_factory, bitcoind):
     wait_for(lambda: bitcoind.rpc.getmempoolinfo()['size'] >= 1)
 
     # Every closing tx in the mempool must have exactly 1 output: the dust
-    # output is omitted in all variants.
+    # output is omitted in all variants.  Elements appends an explicit fee
+    # output (scriptPubKey type 'fee') which must not be counted here.
     for txid in bitcoind.rpc.getrawmempool():
         tx = bitcoind.rpc.getrawtransaction(txid, True)
-        assert len(tx['vout']) == 1, \
+        real_vouts = [v for v in tx['vout'] if v['scriptPubKey'].get('type') != 'fee']
+        assert len(real_vouts) == 1, \
             f"tx {txid} has {len(tx['vout'])} outputs; expected 1 (dust omitted)"