Test overflow fix via update_l2_block_data()

crates/fuel-gas-price-algorithm/src/v1/tests/algorithm_v1_tests.rs

@@ -150,27 +150,37 @@ fn worst_case__same_block_gives_the_same_value_as_calculate() {
 
 #[test]
 fn da_change_should_not_panic() {
-    let updater = AlgorithmUpdaterV1 {
+    const HEIGHT: u32 = 0;
+
+    // The following values are chosen to make the `p.saturating_add(d)` result in
+    // i128::MIN, which would cause a panic if the calculation is not using `saturating_abs()`.
+    const LAST_PROFIT: i128 = i128::MIN / 2;
+    const TOTAL_DA_REWARDS_EXCESS: i128 = i128::MAX / 2;
+    const P: i64 = 1;
+    const D: i64 = 1;
+
+    let mut updater = AlgorithmUpdaterV1 {
         new_scaled_exec_price: 0,
         min_exec_gas_price: 0,
         exec_gas_price_change_percent: 0,
-        l2_block_height: 0,
+        l2_block_height: HEIGHT,
         l2_block_fullness_threshold_percent: ClampedPercentage::new(0),
         new_scaled_da_gas_price: 0,
         gas_price_factor: NonZeroU64::new(1).unwrap(),
         min_da_gas_price: 0,
         max_da_gas_price_change_percent: 0,
-        total_da_rewards_excess: 0,
+        total_da_rewards_excess: TOTAL_DA_REWARDS_EXCESS as u128,
         da_recorded_block_height: 0,
         latest_known_total_da_cost_excess: 0,
         projected_total_da_cost: 0,
-        da_p_component: 0,
-        da_d_component: 0,
-        last_profit: 0,
+        da_p_component: P,
+        da_d_component: D,
+        last_profit: LAST_PROFIT,
         second_to_last_profit: 0,
         latest_da_cost_per_byte: 0,
         unrecorded_blocks: vec![],
     };
 
-    updater.da_change(i128::MIN / 2, i128::MIN / 2);
+    let _ =
+        updater.update_l2_block_data(HEIGHT + 1, 0, NonZeroU64::new(1).unwrap(), 0, 0);
 }