fix: warning about manual implementation of '.is_multiple_of()'

Author: jpraynaud

internal/cardano-node/mithril-cardano-node-internal-database/src/digesters/immutable_digester.rs

@@ -177,7 +177,7 @@ pub(super) struct Progress {
 impl Progress {
     pub(super) fn report(&mut self, ix: usize) -> bool {
         self.index = ix;
-        (20 * ix) % self.total == 0
+        (20 * ix).is_multiple_of(self.total)
     }
 
     pub(super) fn percent(&self) -> f64 {

internal/cardano-node/mithril-cardano-node-internal-database/src/test/dummy_cardano_db.rs

@@ -211,7 +211,7 @@ impl DummyCardanoDbBuilder {
     /// Note: by default, the size of the produced files is less than 1 kb.
     pub fn set_immutable_trio_file_size(&mut self, trio_file_size: u64) -> &mut Self {
         assert!(
-            trio_file_size % 3 == 0,
+            trio_file_size.is_multiple_of(3),
             "'trio_file_size' must be a multiple of 3"
         );
 

mithril-aggregator/src/services/epoch_service.rs

@@ -1019,7 +1019,7 @@ mod tests {
 
             let stake_store = {
                 assert!(
-                    self.total_stake % self.total_spo as u64 == 0,
+                    self.total_stake.is_multiple_of(self.total_spo as u64),
                     "'total_stake' must be a multiple of 'total_spo' to create a uniform stake distribution"
                 );
                 let stake_per_spo = self.total_stake / self.total_spo as u64;