@Test
  public void openReturnsAutoSavingWallet() {
    // Arrange:
    final TestContext context = new TestContext();

    // Act:
    final Wallet wallet = context.walletServices.open(context.pair);
    wallet.addOtherAccount(new WalletAccount());

    // Assert:
    Mockito.verify(context.repository, Mockito.times(1))
        .save(context.descriptor, context.originalWallet);
  }
  @Test
  public void createReturnsAutoSavingWallet() {
    // Arrange:
    final TestContext context = new TestContext();

    // Act:
    final Wallet wallet = context.walletServices.create(context.pair);
    wallet.addOtherAccount(new WalletAccount());

    // Assert:
    // TODO BR: Fix this
    // Mockito.verify(context.repository, Mockito.times(2)).save(context.descriptor, wallet);
    Mockito.verify(context.repository, Mockito.times(2)).save(Mockito.any(), Mockito.any());
  }