Adds 'should reject and refund a legacy pegin from a multisig account…

… with the value exactly minimum' test

lib/constants.js

@@ -45,6 +45,7 @@ const FUNDS_MIGRATION_AGE_SINCE_ACTIVATION_END = 150;
 
 const PEGIN_REJECTION_REASONS = {
   PEGIN_CAP_SURPASSED_REASON: '1',
+  LEGACY_PEGIN_MULTISIG_SENDER: '2',
   PEGIN_V1_INVALID_PAYLOAD_REASON: '4',
   INVALID_AMOUNT: '5',
 };

lib/tests/2wp.js

@@ -83,7 +83,7 @@ const execute = (description, getRskHost) => {
       federationAddress = await bridge.methods.getFederationAddress().call();
       minimumPeginValueInSatoshis = Number(await bridge.methods.getMinimumLockTxValue().call());
       minimumPeginValueInBtc = Number(satoshisToBtc(minimumPeginValueInSatoshis));
-      btcFeeInSatoshis = btcToSatoshis(await btcTxHelper.getFee());
+      btcFeeInSatoshis = Number(btcToSatoshis(await btcTxHelper.getFee()));
 
       await btcTxHelper.importAddress(federationAddress, 'federation');
       await waitAndUpdateBridge(rskTxHelper);
@@ -478,6 +478,53 @@ const execute = (description, getRskHost) => {
 
     });
 
+    it('should reject and refund a legacy pegin from a multisig account with the value exactly minimum', async () => {
+
+      // Arrange
+
+      const initialFederationAddressBalanceInSatoshis = await getBtcAddressBalanceInSatoshis(btcTxHelper, federationAddress);
+
+      const multisigSenderAddressInfo = await btcTxHelper.generateMultisigAddress(3, 2, 'legacy');
+      const peginValueInSatoshis = minimumPeginValueInSatoshis;
+      await btcTxHelper.fundAddress(multisigSenderAddressInfo.address, satoshisToBtc(peginValueInSatoshis + btcFeeInSatoshis));
+
+      // Act
+
+      const btcPeginTxHash = await sendPegin(rskTxHelper, btcTxHelper, multisigSenderAddressInfo, satoshisToBtc(peginValueInSatoshis));
+
+      // Assert
+
+      // The btc pegin tx is marked as processed by the bridge.
+      const isBtcTxHashAlreadyProcessed = await bridge.methods.isBtcTxHashAlreadyProcessed(btcPeginTxHash).call();
+      expect(isBtcTxHashAlreadyProcessed).to.be.true;
+
+      // The rejected_pegin event is emitted with the expected values
+      const btcTxHashProcessedHeight = Number(await bridge.methods.getBtcTxHashProcessedHeight(btcPeginTxHash).call());
+      const expectedEvent = createExpectedRejectedPeginEvent(PEGIN_EVENTS.REJECTED_PEGIN, btcPeginTxHash, PEGIN_REJECTION_REASONS.LEGACY_PEGIN_MULTISIG_SENDER);
+      const peginBtcEvent = await findEventInBlock(rskTxHelper, expectedEvent.name, btcTxHashProcessedHeight);
+      expect(peginBtcEvent).to.be.deep.equal(expectedEvent);
+
+      // Expecting the federation balance to have increased by the pegin value up to this point.
+      const federationAddressBalanceAfterPeginInSatoshis = await getBtcAddressBalanceInSatoshis(btcTxHelper, federationAddress);
+      expect(federationAddressBalanceAfterPeginInSatoshis).to.be.equal(initialFederationAddressBalanceInSatoshis + peginValueInSatoshis);
+
+      // Expecting the btc sender balance to be zero after the pegin.
+      const senderAddressBalanceAfterPegin = await getBtcAddressBalanceInSatoshis(btcTxHelper, multisigSenderAddressInfo.address);
+      expect(Number(senderAddressBalanceAfterPegin)).to.be.equal(0);
+
+      // We are expecting a refund pegout to go through. So, let's push it.
+      await triggerRelease(rskTxHelpers, btcTxHelper);
+
+      // Now, after our expected refund, the federation balance should have decreased by the pegin amount, meaning, should have its initial balance.
+      const finalFederationAddressBalanceInSatoshis = await getBtcAddressBalanceInSatoshis(btcTxHelper, federationAddress);
+      expect(finalFederationAddressBalanceInSatoshis).to.be.equal(initialFederationAddressBalanceInSatoshis)
+
+      // Finally, the multisig sender address should have received the funds back minus certain fee.
+      const finalSenderAddressBalanceInSatoshis = await getBtcAddressBalanceInSatoshis(btcTxHelper, multisigSenderAddressInfo.address);
+      expect(finalSenderAddressBalanceInSatoshis).to.be.above(peginValueInSatoshis - btcFeeInSatoshis).and.below(peginValueInSatoshis)
+
+    });
+
   });
 
 }