util: Disallow negative mocktime

Signed-off-by: practicalswift <practicalswift@users.noreply.github.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/test/functional/rpc_uptime.py b/test/functional/rpc_uptime.py
index e86f91b1d0..6177970872 100755
--- a/test/functional/rpc_uptime.py
+++ b/test/functional/rpc_uptime.py
@@ -10,6 +10,7 @@ Test corresponds to code in rpc/server.cpp.
 import time
 
 from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_raises_rpc_error
 
 
 class UptimeTest(BitcoinTestFramework):
@@ -18,8 +19,12 @@ class UptimeTest(BitcoinTestFramework):
         self.setup_clean_chain = True
 
     def run_test(self):
+        self._test_negative_time()
         self._test_uptime()
 
+    def _test_negative_time(self):
+        assert_raises_rpc_error(-8, "Mocktime can not be negative: -1.", self.nodes[0].setmocktime, -1)
+
     def _test_uptime(self):
         wait_time = 10
         self.nodes[0].setmocktime(int(time.time() + wait_time))