Merge bitcoin#26259: test: Test year 2106 block timestamps

Co-authored-by: fanquake <[email protected]>

Author: 2 people

test/functional/mining_basic.py

@@ -179,7 +179,7 @@ def assert_submitblock(block, result_str_1, result_str_2=None):
 
         self.log.info("getblocktemplate: Test bad timestamps")
         bad_block = copy.deepcopy(block)
-        bad_block.nTime = 2**31 - 1
+        bad_block.nTime = 2**32 - 1
         assert_template(node, bad_block, 'time-too-new')
         assert_submitblock(bad_block, 'time-too-new', 'time-too-new')
         bad_block.nTime = 0

test/functional/rpc_blockchain.py

@@ -92,6 +92,7 @@ def run_test(self):
         self._test_stopatheight()
         self._test_waitforblockheight()
         self._test_getblock()
+        self._test_y2106()
         assert self.nodes[0].verifychain(4, 0)
 
     def mine_chain(self):
@@ -247,6 +248,14 @@ def _test_getblockchaininfo(self):
                 'active': False},
         })
 
+    def _test_y2106(self):
+        self.log.info("Check that block timestamps work until year 2106")
+        self.generate(self.nodes[0], 8)[-1]
+        time_2106 = 2**32 - 1
+        self.nodes[0].setmocktime(time_2106)
+        last = self.generate(self.nodes[0], 6)[-1]
+        assert_equal(self.nodes[0].getblockheader(last)["mediantime"], time_2106)
+
     def _test_getchaintxstats(self):
         self.log.info("Test getchaintxstats")