test: add coverage for `/rest/deploymentinfo`

test/functional/interface_rest.py

@@ -383,6 +383,17 @@ class RESTTest (BitcoinTestFramework):
         assert_equal(self.test_rest_request(f"/headers/{bb_hash}", query_params={"count": 1}), self.test_rest_request(f"/headers/1/{bb_hash}"))
         assert_equal(self.test_rest_request(f"/blockfilterheaders/basic/{bb_hash}", query_params={"count": 1}), self.test_rest_request(f"/blockfilterheaders/basic/5/{bb_hash}"))
 
+        self.log.info("Test the /deploymentinfo URI")
+
+        deployment_info = self.nodes[0].getdeploymentinfo()
+        assert_equal(deployment_info, self.test_rest_request('/deploymentinfo'))
+
+        non_existing_blockhash = '42759cde25462784395a337460bde75f58e73d3f08bd31fdc3507cbac856a2c4'
+        resp = self.test_rest_request(f'/deploymentinfo/{non_existing_blockhash}', ret_type=RetType.OBJ, status=400)
+        assert_equal(resp.read().decode('utf-8').rstrip(), "Block not found")
+
+        resp = self.test_rest_request(f"/deploymentinfo/{INVALID_PARAM}", ret_type=RetType.OBJ, status=400)
+        assert_equal(resp.read().decode('utf-8').rstrip(), f"Invalid hash: {INVALID_PARAM}")
 
 if __name__ == '__main__':
     RESTTest().main()