Test EIP-1559 transaction support

Test case copied over from
MetaMask/eth-ledger-bridge-keyring#99

test/test-eth-trezor-keyring.js

@@ -10,8 +10,11 @@ const sinon = require('sinon');
 const EthereumTx = require('ethereumjs-tx');
 const HDKey = require('hdkey');
 const TrezorConnect = require('trezor-connect').default;
-const { TransactionFactory } = require('@ethereumjs/tx');
-const Common = require('@ethereumjs/common').default;
+const {
+  TransactionFactory,
+  FeeMarketEIP1559Transaction,
+} = require('@ethereumjs/tx');
+const { default: Common, Chain, Hardfork } = require('@ethereumjs/common');
 
 const TrezorKeyring = require('..');
 
@@ -52,6 +55,10 @@ const fakeTx = new EthereumTx({
 });
 
 const common = new Common({ chain: 'mainnet' });
+const commonEIP1559 = new Common({
+  chain: Chain.Mainnet,
+  hardfork: Hardfork.London,
+});
 const newFakeTx = TransactionFactory.fromTxData(
   {
     nonce: '0x00',
@@ -64,6 +71,21 @@ const newFakeTx = TransactionFactory.fromTxData(
   { common, freeze: false },
 );
 
+const fakeTypeTwoTx = FeeMarketEIP1559Transaction.fromTxData(
+  {
+    nonce: '0x00',
+    maxFeePerGas: '0x19184e72a000',
+    maxPriorityFeePerGas: '0x09184e72a000',
+    gasLimit: '0x2710',
+    to: '0x0000000000000000000000000000000000000000',
+    value: '0x00',
+    data: '0x7f7465737432000000000000000000000000000000000000000000000000000000600057',
+    type: 2,
+    v: '0x01',
+  },
+  { common: commonEIP1559, freeze: false },
+);
+
 chai.use(spies);
 
 describe('TrezorKeyring', function () {
@@ -393,6 +415,41 @@ describe('TrezorKeyring', function () {
       assert.equal(returnedTx.common.chainIdBN().toString('hex'), '1');
       assert(TrezorConnect.ethereumSignTransaction.calledOnce);
     });
+
+    it('should pass correctly encoded EIP1559 transaction to trezor and return signed tx', async function () {
+      // Copied from @MetaMask/eth-ledger-bridge-keyring
+      // Generated by signing fakeTypeTwoTx with an unknown private key
+      const expectedRSV = {
+        v: '0x0',
+        r: '0x5ffb3adeaec80e430e7a7b02d95c5108b6f09a0bdf3cf69869dc1b38d0fb8d3a',
+        s: '0x28b234a5403d31564e18258df84c51a62683e3f54fa2b106fdc1a9058006a112',
+      };
+      // Override actual address of 0x391535104b6e0Ea6dDC2AD0158aB3Fbd7F04ed1B
+      sinon.stub(TransactionFactory, 'fromTxData').callsFake((...args) => {
+        const tx = TransactionFactory.fromTxData.wrappedMethod(...args);
+        sinon.stub(tx, 'getSenderAddress').returns(fakeAccounts[0]);
+        return tx;
+      });
+
+      sinon.stub(TrezorConnect, 'ethereumSignTransaction').callsFake(() => {
+        return Promise.resolve({
+          success: true,
+          payload: expectedRSV,
+        });
+      });
+
+      const returnedTx = await keyring.signTransaction(
+        fakeAccounts[0],
+        fakeTypeTwoTx,
+        commonEIP1559,
+      );
+
+      assert(TrezorConnect.ethereumSignTransaction.calledOnce);
+      expect(returnedTx.toJSON()).to.deep.equal({
+        ...fakeTypeTwoTx.toJSON(),
+        ...expectedRSV,
+      });
+    });
   });
 
   describe('signMessage', function () {