Make timestamp_tolerance_ms is const

crates/iota-e2e-tests/tests/shared_objects_tests.rs

@@ -28,6 +28,9 @@ use rand::distributions::Distribution;
 use test_cluster::TestClusterBuilder;
 use tokio::time::sleep;
 
+// Permitted timestamp tolerance for calculating potential time delay
+const TIMESTAMP_TOLERANCE_MS: u64 = 500;
+
 /// Send a simple shared object transaction to Iota and ensures the client gets
 /// back a response.
 #[sim_test]
@@ -470,8 +473,6 @@ async fn call_shared_object_contract() {
 
 #[sim_test]
 async fn access_clock_object_test() {
-    // Permitted timestamp tolerance for calculating potential time delay
-    let timestamp_tolerance_ms: u64 = 500;
     let test_cluster = TestClusterBuilder::new().build().await;
     let package_id = publish_basics_package(&test_cluster.wallet).await.0;
 
@@ -540,7 +541,7 @@ async fn access_clock_object_test() {
         // should match timestamp of the checkpoint where transaction is included
         assert!(
             (checkpoint.timestamp_ms as i64 - event.timestamp_ms as i64).abs()
-                <= timestamp_tolerance_ms as i64,
+                <= TIMESTAMP_TOLERANCE_MS as i64,
             "timestamps are not within the allowed tolerance. Checkpoint: {}, Event: {}",
             checkpoint.timestamp_ms,
             event.timestamp_ms