public async Task GivenATransactionIdThatIsntFound_ShouldReturnNull()
{
var sut = new InMemoryPaymentTransactionRepository();
var result = await sut.GetPaymentTransaction(new Guid());
Assert.That(result, Is.Null);
}
public async Task GivenATransactionIdThatExists_ShouldReturnThePayment()
{
var sut = new InMemoryPaymentTransactionRepository();
var result = await sut.GetPaymentTransaction(new Guid("6fa85f64-5717-4562-b3fc-2c963f66afa9"));
Assert.That(result, Is.Not.Null);
Assert.That(result.PaymentReference, Is.EqualTo("Order#9876"));
}
public async Task GivenATransactionThatExists_ShouldReturnThePayment()
{
var sut = new InMemoryPaymentTransactionRepository();
var result = await sut.GetPaymentTransaction(RequestForFindingTransaction);
Assert.That(result, Is.Not.Null);
Assert.That(result.PaymentReference, Is.EqualTo("Order#9876"));
}
public async Task GivenANewTransaction_ShouldSave()
{
var sut = new InMemoryPaymentTransactionRepository();
var payment = Payment();
await sut.SaveAsync(payment);
await HasStoredTheTransaction(sut, payment);
}
public async Task GivenATransactionIdThatExists_ShouldNotSave()
{
var sut = new InMemoryPaymentTransactionRepository();
var payment = Payment();
// saving the same payment twice
await sut.SaveAsync(payment);
await sut.SaveAsync(payment);
await HasStoredTheTransaction(sut, payment);
}
private static async Task HasStoredTheTransaction(InMemoryPaymentTransactionRepository sut, PaymentTransaction payment)
{
var result = await sut.GetPaymentTransaction(payment.TransactionId);
Assert.That(result, Is.Not.Null);
}
