Merge #15483: rpc: Adding a 'logpath' entry to getrpcinfo

8a6810d0d2 Add a 'logpath' field to getrpcinfo (darosior)

Pull request description:

  as discussed in #15438

ACKs for top commit:
  laanwj:
    Tested ACK 8a6810d0d2

Tree-SHA512: 752c7d90f670677c8144efb338c5c97c2264f85f1e65e031fd5a44f04230b6eafbabd0f634db263eb42c25642ecc1c4b1b602d4735e3fab07ec00b566134ddab

test/functional/interface_rpc.py

@@ -4,6 +4,7 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Tests some generic aspects of the RPC interface."""
 
+import os
 from test_framework.authproxy import JSONRPCException
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_greater_than_or_equal
@@ -31,6 +32,7 @@ class RPCInterfaceTest(BitcoinTestFramework):
         command = info['active_commands'][0]
         assert_equal(command['method'], 'getrpcinfo')
         assert_greater_than_or_equal(command['duration'], 0)
+        assert_equal(info['logpath'], os.path.join(self.nodes[0].datadir, 'regtest', 'debug.log'))
 
     def test_batch_request(self):
         self.log.info("Testing basic JSON-RPC batch request...")