public async Task AddMember_Database_Call_Is_Made_Once()
{
// Arrange
var cardId = "ByDJ0lbYcPkzp2Ja";
var newAmount = new AdjustAmount
{
CardId = cardId,
Amount = 10
};
var newBalance = new BalanceDto()
{
Balance = 10
};
var transactionRepo = new Mock <ITransactionsRepository>();
transactionRepo.Setup(x => x.AddAmount(newAmount)).Returns(newBalance);
// Act
var transactionService = new TransactionService(transactionRepo.Object);
var result = transactionService.AddAmount(newAmount);
// Assert
transactionRepo.Verify(x => x.AddAmount(newAmount), Times.Once);
}