message: test(core): test against stx to see if tests pass, then fix tstx
diff: import * as Promise from 'bluebird';
  -import { Stx } from '../../../../src/v2/coins/';
  +import { Stx, Tstx } from '../../../../src/v2/coins/';
  const co = Promise.coroutine;
  import { TestBitGo } from '../../../lib/test_bitgo';
  @@ -11,12 +11,15 @@ describe('STX:', function() {
  before(function() {
  bitgo = new TestBitGo({ env: 'mock' });
  bitgo.initializeTestVars();
  - basecoin = bitgo.coin('tstx');
  + basecoin = bitgo.coin('stx');
  });
  it('should instantiate the coin', function() {
  - const basecoin = bitgo.coin('stx');
  - basecoin.should.be.an.instanceof(Stx);
  + let localBasecoin = bitgo.coin('tstx');
  + localBasecoin.should.be.an.instanceof(Tstx);
  +
  + localBasecoin = bitgo.coin('stx');
  + localBasecoin.should.be.an.instanceof(Stx);
  });
  