Add totalStake to the MintedReward event

Author: bbenligiray

packages/pool/contracts/RewardUtils.sol

@@ -36,7 +36,8 @@ abstract contract RewardUtils is GetterUtils, IRewardUtils {
                 emit MintedReward(
                     currentEpoch,
                     rewardAmount,
-                    apr
+                    apr,
+                    totalStake
                     );
             }
             epochIndexOfLastReward = currentEpoch;

packages/pool/contracts/interfaces/IRewardUtils.sol

@@ -7,7 +7,8 @@ interface IRewardUtils is IGetterUtils {
     event MintedReward(
         uint256 indexed epochIndex,
         uint256 amount,
-        uint256 newApr
+        uint256 newApr,
+        uint256 totalStake
         );
 
     function mintReward()

packages/pool/test/RewardUtils.sol.js

@@ -89,7 +89,7 @@ describe("mintReward", function () {
               .div(HUNDRED_PERCENT);
             await expect(api3Pool.connect(roles.randomPerson).mintReward())
               .to.emit(api3Pool, "MintedReward")
-              .withArgs(nextEpoch, rewardAmount, newApr);
+              .withArgs(nextEpoch, rewardAmount, newApr, totalStake.add(rewardAmount));
             expect(await api3Pool.totalStake()).to.equal(
               totalStake.add(rewardAmount)
             );
@@ -153,7 +153,7 @@ describe("mintReward", function () {
               .div(HUNDRED_PERCENT);
             await expect(api3Pool.connect(roles.randomPerson).mintReward())
               .to.emit(api3Pool, "MintedReward")
-              .withArgs(nextEpoch, rewardAmount, newApr);
+              .withArgs(nextEpoch, rewardAmount, newApr, totalStake.add(rewardAmount));
             expect(await api3Pool.totalStake()).to.equal(
               totalStake.add(rewardAmount)
             );
@@ -254,7 +254,7 @@ describe("mintReward", function () {
           .div(HUNDRED_PERCENT);
         await expect(api3Pool.connect(roles.randomPerson).mintReward())
           .to.emit(api3Pool, "MintedReward")
-          .withArgs(genesisEpochPlusFive, rewardAmount, newApr);
+          .withArgs(genesisEpochPlusFive, rewardAmount, newApr, totalStake.add(rewardAmount));
         expect(await api3Pool.totalStake()).to.equal(
           totalStake.add(rewardAmount)
         );