test: explicit fee rates with invalid amounts

1 files changed, 5 insertions, 0 deletions

diff --git a/test/functional/wallet_send.py b/test/functional/wallet_send.py
index ac64f44f1f..4b3aac3158 100755
--- a/test/functional/wallet_send.py
+++ b/test/functional/wallet_send.py
@@ -360,6 +360,11 @@ class WalletSendTest(BitcoinTestFramework):
         for zero_value in [0, 0.000, 0.00000000, "0", "0.000", "0.00000000"]:
             self.test_send(from_wallet=w0, to_wallet=w1, amount=1, fee_rate=zero_value, expect_error=(-4, msg))
             self.test_send(from_wallet=w0, to_wallet=w1, amount=1, arg_fee_rate=zero_value, expect_error=(-4, msg))
+        msg = "Invalid amount"
+        # Test fee_rate values that don't pass fixed-point parsing checks.
+        for invalid_value in ["", 0.000000001, 1e-09, 1.111111111, 1111111111111111, "31.999999999999999999999"]:
+            self.test_send(from_wallet=w0, to_wallet=w1, amount=1, fee_rate=invalid_value, expect_error=(-3, msg))
+            self.test_send(from_wallet=w0, to_wallet=w1, amount=1, arg_fee_rate=invalid_value, expect_error=(-3, msg))
 
         # TODO: Return hex if fee rate is below -maxmempool
         # res = self.test_send(from_wallet=w0, to_wallet=w1, amount=1, conf_target=0.1, estimate_mode="sat/b", add_to_wallet=False)