feat(sdk-coin-apt): explained tx test case

Ticket: COIN-2258

Author: baltiyal

modules/sdk-coin-apt/test/unit/apt.ts

@@ -1,7 +1,7 @@
 import 'should';
 import { TestBitGo, TestBitGoAPI } from '@bitgo/sdk-test';
 import { BitGoAPI } from '@bitgo/sdk-api';
-import { Apt, Tapt } from '../../src';
+import { Apt, Tapt, TransferTransaction } from '../../src';
 import * as testData from '../resources/apt';
 import _ from 'lodash';
 import sinon from 'sinon';
@@ -18,6 +18,7 @@ import {
   Network,
 } from '@aptos-labs/ts-sdk';
 import utils from '../../src/lib/utils';
+import { coins } from '@bitgo/statics';
 
 describe('APT:', function () {
   let bitgo: TestBitGoAPI;
@@ -100,7 +101,7 @@ describe('APT:', function () {
     });
   });
 
-  describe('Parse Transactions: ', () => {
+  describe('Parse and Explain Transactions: ', () => {
     const transferInputsResponse = [
       {
         address: testData.sender2.address,
@@ -126,6 +127,48 @@ describe('APT:', function () {
       });
     });
 
+    it('should explain a transfer transaction', async function () {
+      const rawTx = newTxPrebuild().txHex;
+      const transaction = new TransferTransaction(coins.get('tapt'));
+      transaction.fromRawTransaction(rawTx);
+      const explainedTx = transaction.explainTransaction();
+      console.log(explainedTx);
+      explainedTx.should.deepEqual({
+        displayOrder: [
+          'id',
+          'outputs',
+          'outputAmount',
+          'changeOutputs',
+          'changeAmount',
+          'fee',
+          'withdrawAmount',
+          'sender',
+          'type',
+        ],
+        id: '0x43ea7697550d5effb68c47488fd32a7756ee418e8d2be7d6b7f634f3ac0d7766',
+        outputs: [
+          {
+            address: '0xf7405c28a02cf5bab4ea4498240bb3579db45951794eb1c843bef0534c093ad9',
+            amount: '1000',
+          },
+        ],
+        outputAmount: '1000',
+        changeOutputs: [],
+        changeAmount: '0',
+        fee: { fee: 'UNKNOWN' },
+        sender: '0xc8f02d25aa698b3e9fbd8a08e8da4c8ee261832a25a4cde8731b5ec356537d09',
+        type: 0,
+      });
+    });
+
+    it('should fail to explain a invalid raw transaction', async function () {
+      const rawTx = 'invalidRawTransaction';
+      const transaction = new TransferTransaction(coins.get('tapt'));
+      await assert.rejects(async () => transaction.fromRawTransaction(rawTx), {
+        message: 'invalid raw transaction',
+      });
+    });
+
     it('should fail to parse a transfer transaction when explainTransaction response is undefined', async function () {
       const stub = sinon.stub(Apt.prototype, 'explainTransaction');
       stub.resolves(undefined);