public async Task TransactionShouldBeAddedUsingAccount()
{
var acc = new AccountFactory(_dbContext).WithDefaultValues().Build();
var transaction = new TransactionFactory().WithDefaultValues().Build();
acc.AddCredit(transaction);
var repo = await GetRepository <Account>();
Func <Task> add = async() => {
await repo.AddAsync(acc, default);
};
add.Should().NotThrow();
acc.Transactions.Should().HaveCount(1);
acc.GetCurrentBalance().Should().Be(transaction.Value);
}