Check for unused function arguments (#6583)

* eslint: Check for unused function arguments

* eslint: Ignore unused '_' in argument list

Also allow any number of '_' e.g., '__' or '___' which is to be used sparingly

* Remove and rename unused arguments

4 files changed, 9 insertions, 9 deletions

diff --git a/test/unit/app/controllers/transactions/pending-tx-test.js b/test/unit/app/controllers/transactions/pending-tx-test.js
index 2988bf61f..1c5f59f5a 100644
--- a/test/unit/app/controllers/transactions/pending-tx-test.js
+++ b/test/unit/app/controllers/transactions/pending-tx-test.js
@@ -100,7 +100,7 @@ describe('PendingTransactionTracker', function () {
 
   describe('#_checkPendingTx', function () {
     it('should emit \'tx:failed\' if the txMeta does not have a hash', function (done) {
-      pendingTxTracker.once('tx:failed', (txId, err) => {
+      pendingTxTracker.once('tx:failed', (txId) => {
         assert(txId, txMetaNoHash.id, 'should pass txId')
         done()
       })
@@ -128,7 +128,7 @@ describe('PendingTransactionTracker', function () {
       pendingTxTracker.getPendingTransactions = () => txList
       pendingTxTracker._checkPendingTx = (tx) => { tx.resolve(tx) }
       Promise.all(txList.map((tx) => tx.processed))
-      .then((txCompletedList) => done())
+      .then(() => done())
       .catch(done)
 
       pendingTxTracker.updatePendingTxs()
@@ -152,7 +152,7 @@ describe('PendingTransactionTracker', function () {
       pendingTxTracker.getPendingTransactions = () => txList
       pendingTxTracker._resubmitTx = async (tx) => { tx.resolve(tx) }
       Promise.all(txList.map((tx) => tx.processed))
-      .then((txCompletedList) => done())
+      .then(() => done())
       .catch(done)
       pendingTxTracker.resubmitPendingTxs(blockNumberStub)
     })
@@ -178,7 +178,7 @@ describe('PendingTransactionTracker', function () {
         throw new Error(knownErrors.pop())
       }
       Promise.all(txList.map((tx) => tx.processed))
-      .then((txCompletedList) => done())
+      .then(() => done())
       .catch(done)
 
       pendingTxTracker.resubmitPendingTxs(blockNumberStub)
@@ -194,9 +194,9 @@ describe('PendingTransactionTracker', function () {
       })
 
       pendingTxTracker.getPendingTransactions = () => txList
-      pendingTxTracker._resubmitTx = async (tx) => { throw new TypeError('im some real error') }
+      pendingTxTracker._resubmitTx = async () => { throw new TypeError('im some real error') }
       Promise.all(txList.map((tx) => tx.processed))
-      .then((txCompletedList) => done())
+      .then(() => done())
       .catch(done)
 
       pendingTxTracker.resubmitPendingTxs(blockNumberStub)
diff --git a/test/unit/app/controllers/transactions/tx-gas-util-test.js b/test/unit/app/controllers/transactions/tx-gas-util-test.js
index 31defd6ed..f92d95507 100644
--- a/test/unit/app/controllers/transactions/tx-gas-util-test.js
+++ b/test/unit/app/controllers/transactions/tx-gas-util-test.js
@@ -11,7 +11,7 @@ describe('txUtils', function () {
 
   before(function () {
     txUtils = new TxUtils(new Proxy({}, {
-      get: (obj, name) => {
+      get: () => {
         return () => {}
       },
     }))
diff --git a/test/unit/app/controllers/transactions/tx-state-history-helper-test.js b/test/unit/app/controllers/transactions/tx-state-history-helper-test.js
index fba0e7fda..328c2ac6f 100644
--- a/test/unit/app/controllers/transactions/tx-state-history-helper-test.js
+++ b/test/unit/app/controllers/transactions/tx-state-history-helper-test.js
@@ -29,7 +29,7 @@ describe('Transaction state history helper', function () {
 
   describe('#migrateFromSnapshotsToDiffs', function () {
     it('migrates history to diffs and can recover original values', function () {
-      testVault.data.TransactionController.transactions.forEach((tx, index) => {
+      testVault.data.TransactionController.transactions.forEach((tx) => {
         const newHistory = txStateHistoryHelper.migrateFromSnapshotsToDiffs(tx.history)
         newHistory.forEach((newEntry, index) => {
           if (index === 0) {
diff --git a/test/unit/app/controllers/transactions/tx-state-manager-test.js b/test/unit/app/controllers/transactions/tx-state-manager-test.js
index 88bdaa60e..4ccade2aa 100644
--- a/test/unit/app/controllers/transactions/tx-state-manager-test.js
+++ b/test/unit/app/controllers/transactions/tx-state-manager-test.js
@@ -55,7 +55,7 @@ describe('TransactionStateManager', function () {
     it('should emit a rejected event to signal the exciton of callback', (done) => {
       const tx = { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} }
       txStateManager.addTx(tx)
-      const noop = function (err, txId) {
+      const noop = function (err) {
           if (err) {
             console.log('Error: ', err)
           }