tests for new epoch credits methods

tests/tests/validator_history/mod.rs

@@ -4,3 +4,5 @@ mod test_initialize;
 mod test_mev_commission;
 mod test_stake;
 mod test_vote_account;
+
+mod test_state;

tests/tests/validator_history/test_state.rs

@@ -0,0 +1,74 @@
+
+se validator_history::constants::TVC_MULTIPLIER;
+use validator_history::state::CircBuf;
+use validator_history::ValidatorHistoryEntry;
+
+const MAX_ITEMS: usize = 512;
+#[test]
+fn test_normalized_epoch_credits_latest() {
+    let mut circ_buf = CircBuf {
+        idx: 4,
+        is_empty: 0,
+        padding: [0; 7],
+        arr: [ValidatorHistoryEntry::default(); MAX_ITEMS],
+    };
+
+    for i in 0..5 {
+        circ_buf.arr[i] = ValidatorHistoryEntry {
+            epoch_credits: 1000,
+            epoch: i as u16,
+            ..ValidatorHistoryEntry::default()
+        };
+    }
+
+    // Test normalizing an epoch before tvc activation
+    assert_eq!(
+        circ_buf.epoch_credits_latest_normalized(3, 4),
+        Some(1000 * TVC_MULTIPLIER)
+    );
+
+    // Test normalizing an epoch after tvc activation
+    assert_eq!(circ_buf.epoch_credits_latest_normalized(3, 3), Some(1000));
+}
+
+#[test]
+fn test_epoch_credits_range_normalized() {
+    let mut circ_buf = CircBuf {
+        idx: 4,
+        is_empty: 0,
+        padding: [0; 7],
+        arr: [ValidatorHistoryEntry::default(); MAX_ITEMS],
+    };
+
+    for i in 0..5 {
+        circ_buf.arr[i] = ValidatorHistoryEntry {
+            epoch_credits: 1000,
+            epoch: i as u16,
+            ..ValidatorHistoryEntry::default()
+        };
+    }
+
+    // Test normalizing epochs before tvc activation
+    assert_eq!(
+        circ_buf.epoch_credits_range_normalized(0, 4, 5),
+        vec![
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000 * TVC_MULTIPLIER)
+        ]
+    );
+
+    // Test normalizing epochs with tvc activation in middle of range
+    assert_eq!(
+        circ_buf.epoch_credits_range_normalized(0, 4, 2),
+        vec![
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000 * TVC_MULTIPLIER),
+            Some(1000),
+            Some(1000),
+            Some(1000)
+        ]
+    );
+}