diff --git a/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs b/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
index d94d73ed..774f48b5 100644
--- a/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
+++ b/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
@@ -3,7 +3,7 @@ import client_config from '../client_config.js';
 import mercurynodejslib from 'mercurynodejslib';
 import { CoinStatus } from 'mercurynodejslib/coin_enum.js';
 import crypto from 'crypto';
-import { createWallet, depositCoin, generateInvoice, payInvoice } from '../test_utils.js';
+import { sleep, createWallet, depositCoin, generateInvoice, payInvoice, settleInvoice } from '../test_utils.js';
 
 describe('TB04 - Lightning Latch', function() {
   this.timeout(30000);
@@ -279,7 +279,7 @@ describe('TB04 - Lightning Latch', function() {
     })
   })
 
-  context('Receiver tries to transfer invoice amount to another invoice before preimage retrieval should fail', () => {
+  context('Statecoin trade with invoice creation, payment and settlement', () => {
     it('should complete successfully', async () => {
 
       // await removeDatabase();
@@ -314,7 +314,7 @@ describe('TB04 - Lightning Latch', function() {
 
       const invoice = await generateInvoice(paymentHash.hash, amount);
 
-      await payInvoice(invoice.payment_request);
+      payInvoice(invoice.payment_request);
 
       const transferAddress = await mercurynodejslib.newTransferAddress(clientConfig, wallet_2_name, null);
 
@@ -339,6 +339,76 @@ describe('TB04 - Lightning Latch', function() {
           .digest('hex')
 
       expect(hash).to.equal(paymentHash.hash);
+
+      await settleInvoice(preimage);
+    })
+  })
+
+  context('Receiver tries to transfer invoice amount to another invoice before preimage retrieval should fail', () => {
+    it('should complete successfully', async () => {
+
+      // await removeDatabase();
+      const clientConfig = client_config.load();
+      let wallet_1_name = "w_ln_7";
+      let wallet_2_name = "w_ln_8";
+      await createWallet(clientConfig, wallet_1_name);
+      await createWallet(clientConfig, wallet_2_name);
+
+      const token = await mercurynodejslib.newToken(clientConfig, wallet_1_name);
+      const tokenId = token.token_id;
+
+      const amount = 60000;
+      const depositInfo = await mercurynodejslib.getDepositBitcoinAddress(clientConfig, wallet_1_name, amount);
+
+      const tokenList = await mercurynodejslib.getWalletTokens(clientConfig, wallet_1_name);
+      const usedToken = tokenList.find(token => token.token_id === tokenId);
+
+      expect(usedToken.spent).is.true;
+
+      await depositCoin(clientConfig, wallet_1_name, amount, depositInfo);
+
+      const listCoins = await mercurynodejslib.listStatecoins(clientConfig, wallet_1_name);
+
+      expect(listCoins.length).to.equal(1);
+
+      const coin = listCoins[0];
+
+      expect(coin.status).to.equal(CoinStatus.CONFIRMED);
+
+      const paymentHash = await mercurynodejslib.paymentHash(clientConfig, wallet_1_name, coin.statechain_id);
+
+      const invoice = await generateInvoice(paymentHash.hash, amount);
+
+      payInvoice(invoice.payment_request);
+
+      const transferAddress = await mercurynodejslib.newTransferAddress(clientConfig, wallet_2_name, null);
+
+      await mercurynodejslib.transferSend(clientConfig, wallet_1_name, coin.statechain_id, transferAddress.transfer_receive, false, paymentHash.batchId);
+
+      let transferReceiveResult = await mercurynodejslib.transferReceive(clientConfig, wallet_2_name);
+
+      expect(transferReceiveResult.isThereBatchLocked).is.true;
+      expect(transferReceiveResult.receivedStatechainIds).empty;
+
+      await mercurynodejslib.confirmPendingInvoice(clientConfig, wallet_1_name, coin.statechain_id);
+
+      transferReceiveResult = await mercurynodejslib.transferReceive(clientConfig, wallet_2_name);
+
+      expect(transferReceiveResult.isThereBatchLocked).is.false;
+      expect(transferReceiveResult.receivedStatechainIds).not.empty;
+
+      const { preimage } = await mercurynodejslib.retrievePreImage(clientConfig, wallet_1_name, coin.statechain_id, paymentHash.batchId);
+
+      const hash = crypto.createHash('sha256')
+          .update(Buffer.from(preimage, 'hex'))
+          .digest('hex')
+
+      expect(hash).to.equal(paymentHash.hash);
+
+      const paymentHashSecond = await mercurynodejslib.paymentHash(clientConfig, wallet_1_name, coin.statechain_id);
+      const invoiceSecond = await generateInvoice(paymentHashSecond.hash, amount);
+
+      payInvoice(invoiceSecond.payment_request);
     })
   })
 })
diff --git a/clients/apps/nodejs/test_utils.js b/clients/apps/nodejs/test_utils.js
index 9c72cc2f..1a22b2b1 100644
--- a/clients/apps/nodejs/test_utils.js
+++ b/clients/apps/nodejs/test_utils.js
@@ -108,18 +108,26 @@ const generateInvoice = async (paymentHash, amountInSats) => {
         console.error('Error:', stderr);
         return null;
     }
-    return stdout.trim();
-}
-
-const payInvoice = async (paymentRequest) => {
     
-    const payInvoiceCommand = `docker exec $(docker ps -qf "name=mercurylayer_bob_1") lncli -n regtest payinvoice ${paymentRequest}`;
-    const { stdout, stderr } = await exec(payInvoiceCommand);
-    if (stderr) {
-        console.error('Error:', stderr);
+    try {
+        const response = JSON.parse(stdout.trim());
+        return response;
+    } catch (error) {
+        console.error('Error parsing JSON:', error);
         return null;
     }
-    return stdout.trim();
+}
+
+const payInvoice = (paymentRequest) => {
+    
+    const payInvoiceCommand = `docker exec $(docker ps -qf "name=mercurylayer_bob_1") lncli -n regtest payinvoice --force ${paymentRequest}`;
+    exec(payInvoiceCommand);
+}
+
+const settleInvoice = async (preimage) => {
+
+    const settleInvoiceCommand = `docker exec $(docker ps -qf "name=mercurylayer_alice_1") lncli -n regtest settleinvoice ${preimage}`;
+    await exec(settleInvoiceCommand);
 }
 
 module.exports = { 
@@ -135,5 +143,6 @@ module.exports = {
     connectMercuryServer, 
     disconnectMercuryServer ,
     generateInvoice,
-    payInvoice
+    payInvoice,
+    settleInvoice
 };