diff --git a/test/integration/transactions-psbt.js b/test/integration/transactions-psbt.js
index 9d40ed0..9040fc2 100644
--- a/test/integration/transactions-psbt.js
+++ b/test/integration/transactions-psbt.js
@@ -283,41 +283,27 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
   });
 
   it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2WPKH) input with nonWitnessUtxo', async () => {
+    // For learning purposes, ignore this test.
+    // REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
     const p2sh = createPayment('p2sh-p2wpkh');
     const inputData = await getInputData(5e4, p2sh.payment, false, 'p2sh');
     const inputData2 = await getInputData(5e4, p2sh.payment, false, 'p2sh');
-    {
-      const {
-        hash,
-        index,
-        nonWitnessUtxo,
-        redeemScript,
-      } = inputData;
-      assert.deepStrictEqual(
-        { hash, index, nonWitnessUtxo, redeemScript },
-        inputData,
-      );
-    }
     const keyPair = p2sh.keys[0];
     const outputData = {
-      script: p2sh.payment.output, // sending to myself for fun
+      script: p2sh.payment.output,
       value: 2e4,
     };
     const outputData2 = {
-      script: p2sh.payment.output, // sending to myself for fun
+      script: p2sh.payment.output,
       value: 7e4,
     };
-
     const tx = new bitcoin.Psbt()
       .addInputs([inputData, inputData2])
       .addOutputs([outputData, outputData2])
       .signAllInputs(keyPair)
       .finalizeAllInputs()
       .extractTransaction();
-
-    // build and broadcast to the Bitcoin RegTest network
     await regtestUtils.broadcast(tx.toHex());
-
     await regtestUtils.verify({
       txId: tx.getId(),
       address: p2sh.payment.address,
@@ -361,15 +347,10 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
   });
 
   it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WPKH input with nonWitnessUtxo', async () => {
-    // the only thing that changes is you don't give a redeemscript for input data
-
+    // For learning purposes, ignore this test.
+    // REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
     const p2wpkh = createPayment('p2wpkh');
     const inputData = await getInputData(5e4, p2wpkh.payment, false, 'noredeem');
-    {
-      const { hash, index, nonWitnessUtxo } = inputData;
-      assert.deepStrictEqual({ hash, index, nonWitnessUtxo }, inputData);
-    }
-
     const psbt = new bitcoin.Psbt({ network: regtest })
       .addInput(inputData)
       .addOutput({
@@ -377,15 +358,9 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
         value: 2e4,
       })
       .signInput(0, p2wpkh.keys[0]);
-
-    assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
     psbt.finalizeAllInputs();
-
     const tx = psbt.extractTransaction();
-
-    // build and broadcast to the Bitcoin RegTest network
     await regtestUtils.broadcast(tx.toHex());
-
     await regtestUtils.verify({
       txId: tx.getId(),
       address: regtestUtils.RANDOM_ADDRESS,
@@ -435,21 +410,10 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
   });
 
   it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WSH(P2PK) input with nonWitnessUtxo', async () => {
+    // For learning purposes, ignore this test.
+    // REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
     const p2wsh = createPayment('p2wsh-p2pk');
     const inputData = await getInputData(5e4, p2wsh.payment, false, 'p2wsh');
-    {
-      const {
-        hash,
-        index,
-        nonWitnessUtxo,
-        witnessScript, // NEW: A Buffer of the witnessScript
-      } = inputData;
-      assert.deepStrictEqual(
-        { hash, index, nonWitnessUtxo, witnessScript },
-        inputData,
-      );
-    }
-
     const psbt = new bitcoin.Psbt({ network: regtest })
       .addInput(inputData)
       .addOutput({
@@ -457,15 +421,9 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
         value: 2e4,
       })
       .signInput(0, p2wsh.keys[0]);
-
-    assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
     psbt.finalizeAllInputs();
-
     const tx = psbt.extractTransaction();
-
-    // build and broadcast to the Bitcoin RegTest network
     await regtestUtils.broadcast(tx.toHex());
-
     await regtestUtils.verify({
       txId: tx.getId(),
       address: regtestUtils.RANDOM_ADDRESS,
@@ -525,22 +483,10 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
   });
 
   it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2WSH(P2MS(3 of 4))) (SegWit multisig) input with nonWitnessUtxo', async () => {
+    // For learning purposes, ignore this test.
+    // REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
     const p2sh = createPayment('p2sh-p2wsh-p2ms(3 of 4)');
     const inputData = await getInputData(5e4, p2sh.payment, false, 'p2sh-p2wsh');
-    {
-      const {
-        hash,
-        index,
-        nonWitnessUtxo,
-        redeemScript,
-        witnessScript,
-      } = inputData;
-      assert.deepStrictEqual(
-        { hash, index, nonWitnessUtxo, redeemScript, witnessScript },
-        inputData,
-      );
-    }
-
     const psbt = new bitcoin.Psbt({ network: regtest })
       .addInput(inputData)
       .addOutput({
@@ -550,22 +496,9 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
       .signInput(0, p2sh.keys[0])
       .signInput(0, p2sh.keys[2])
       .signInput(0, p2sh.keys[3]);
-
-    assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
-    assert.strictEqual(
-      psbt.validateSignaturesOfInput(0, p2sh.keys[3].publicKey),
-      true,
-    );
-    assert.throws(() => {
-      psbt.validateSignaturesOfInput(0, p2sh.keys[1].publicKey);
-    }, new RegExp('No signatures for this pubkey'));
     psbt.finalizeAllInputs();
-
     const tx = psbt.extractTransaction();
-
-    // build and broadcast to the Bitcoin RegTest network
     await regtestUtils.broadcast(tx.toHex());
-
     await regtestUtils.verify({
       txId: tx.getId(),
       address: regtestUtils.RANDOM_ADDRESS,