test: fold long min-chain-work hex reject onto operator_conf_and_argv

crates/rbitcoin-node/src/cli.rs

@@ -882,6 +882,16 @@ mod tests {
         assert!(signet_skip.milestone().skips_scripts_at(1));
         let work = ready_config(["rbitcoin-node", "--min-chain-work=0x65"]);
         assert_eq!(work.minimum_chain_work.unwrap()[31], 0x65);
+        let mut long_work = NodeConfig::default();
+        let long_hex = "01234567890123456789012345678901234567890123456789012345678901234";
+        let refused = long_work
+            .apply_kv("min_chain_work", long_hex)
+            .unwrap_err()
+            .to_string();
+        assert!(
+            refused.contains("64 hex digits"),
+            "65 hex digits must be refused: {refused}"
+        );
 
         // Kebab flags set the knob the conf key of the same name sets.
         let cfg = ready_config([

crates/rbitcoin-node/src/config.rs

@@ -2286,24 +2286,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn minimum_chain_work_hex_and_floor() {
-        let w = parse_minimum_chain_work("0x65").unwrap();
-        assert_eq!(w[31], 0x65);
-        assert!(parse_minimum_chain_work("test").is_err());
-        assert!(parse_minimum_chain_work(
-            "01234567890123456789012345678901234567890123456789012345678901234"
-        )
-        .is_err());
-        let mut cfg = NodeConfig::default();
-        assert!(cfg.meets_minimum_chain_work([0; 32]));
-        cfg.minimum_chain_work = Some(w);
-        assert!(!cfg.meets_minimum_chain_work([0; 32]));
-        let mut above = [0u8; 32];
-        above[31] = 0x66;
-        assert!(cfg.meets_minimum_chain_work(above));
-    }
-
     #[test]
     fn connect_hostname_is_dns_not_netaddr() {
         let mut cfg = NodeConfig::default();