Merge bitcoin/bitcoin#25937: test: add coverage for rpc error when trying to rescan beyond pruned data

cca4f82 test: add coverage for rpc error when trying to rescan beyond pruned data (brunoerg)

Pull request description:

  This PR adds test coverage for the following rpc error:
  https://github.com/bitcoin/bitcoin/blob/15692e2641592394bdd4da0a7c2d371de8e576dd/src/wallet/rpc/transactions.cpp#L896-L899

ACKs for top commit:
  MarcoFalke:
    lgtm ACK cca4f82
  aureleoules:
    ACK cca4f82

Tree-SHA512: 724a055e9f6cddf1935699e8769015115f24f6485a0bd87e8660072ee44a15c1bddfdda848acc101ea7184b7e65a33b5b0d80b563d2ba3ecdab7a631378d6476

Author: fanquake

test/functional/feature_pruning.py

@@ -135,6 +135,10 @@ def test_invalid_command_line_options(self):
             extra_args=['-prune=550', '-reindex-chainstate'],
         )
 
+    def test_rescan_blockchain(self):
+        self.restart_node(0, ["-prune=550"])
+        assert_raises_rpc_error(-1, "Can't rescan beyond pruned data. Use RPC call getblockchaininfo to determine your pruned height.", self.nodes[0].rescanblockchain)
+
     def test_height_min(self):
         assert os.path.isfile(os.path.join(self.prunedir, "blk00000.dat")), "blk00000.dat is missing, pruning too early"
         self.log.info("Success")
@@ -469,6 +473,9 @@ def run_test(self):
             self.log.info("Test wallet re-scan")
             self.wallet_test()
 
+            self.log.info("Test it's not possible to rescan beyond pruned data")
+            self.test_rescan_blockchain()
+
         self.log.info("Test invalid pruning command line options")
         self.test_invalid_command_line_options()