fix(primitives): handle conway extreme param updates (#462)

pallas-primitives/src/conway/model.rs

@@ -1,6 +1,6 @@
 //! Ledger primitives and cbor codec for the Conway era
 //!
-//! Handcrafted, idiomatic rust artifacts based on based on the [Conway CDDL](https://github.com/input-output-hk/cardano-ledger/blob/master/eras/conway/test-suite/cddl-files/conway.cddl) file in IOHK repo.
+//! Handcrafted, idiomatic rust artifacts based on based on the [Conway CDDL](https://github.com/IntersectMBO/cardano-ledger/blob/master/eras/conway/impl/cddl-files/conway.cddl) file in IntersectMBO repo.
 
 use std::ops::Deref;
 
@@ -541,23 +541,23 @@ pub struct CostMdls {
 #[cbor(map)]
 pub struct ProtocolParamUpdate {
     #[n(0)]
-    pub minfee_a: Option<u32>,
+    pub minfee_a: Option<u64>,
     #[n(1)]
-    pub minfee_b: Option<u32>,
+    pub minfee_b: Option<u64>,
     #[n(2)]
-    pub max_block_body_size: Option<u32>,
+    pub max_block_body_size: Option<u64>,
     #[n(3)]
-    pub max_transaction_size: Option<u32>,
+    pub max_transaction_size: Option<u64>,
     #[n(4)]
-    pub max_block_header_size: Option<u32>,
+    pub max_block_header_size: Option<u64>,
     #[n(5)]
     pub key_deposit: Option<Coin>,
     #[n(6)]
     pub pool_deposit: Option<Coin>,
     #[n(7)]
     pub maximum_epoch: Option<Epoch>,
     #[n(8)]
-    pub desired_number_of_stake_pools: Option<u32>,
+    pub desired_number_of_stake_pools: Option<u64>,
     #[n(9)]
     pub pool_pledge_influence: Option<RationalNumber>,
     #[n(10)]
@@ -589,7 +589,7 @@ pub struct ProtocolParamUpdate {
     #[n(26)]
     pub drep_voting_thresholds: Option<DRepVotingThresholds>,
     #[n(27)]
-    pub min_committee_size: Option<u32>,
+    pub min_committee_size: Option<u64>,
     #[n(28)]
     pub committee_term_limit: Option<Epoch>,
     #[n(29)]
@@ -1710,6 +1710,8 @@ mod tests {
         let test_blocks = [
             include_str!("../../../test_data/conway1.block"),
             include_str!("../../../test_data/conway2.block"),
+            // interesting block with extreme values
+            include_str!("../../../test_data/conway3.block"),
         ];
 
         for (idx, block_str) in test_blocks.iter().enumerate() {

test_data/conway3.block

@@ -0,0 +1 @@
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