public async Task Test_Apply_Loan()
{
//Arrange
var fakeLoan = LoanFakes.GetFakeLoan();
//Act
await _customerLoanController.Apply(fakeLoan);
var loans = await _customerLoanController.Index();
var loansValue = (loans.Result as OkObjectResult).Value as IEnumerable <Loan>;
//Assert
loansValue.Should().NotBeNull();
loansValue.Count().Should().Be(1);
loansValue.ToArray()[0].CustomerID.Should().Be(2);
}