public void RewardPointsResult_ShouldSet_MonthlyTotals_MonthName_To_January_For_Value_1_In_Transaction_Month(int monthNumber, string monthName)
{
// Arrange
IEnumerable <Transaction> transactions = new List <Transaction>
{
new Transaction
{
CustomerId = 1,
ProductId = 1,
Amount = 120,
PurchaseDate = new DateTime(2020, monthNumber, 5)
}
};
var customer = new Customer {
CustomerId = 1, FirstName = "Fake", LastName = "Customer"
};
var expected = monthName;
// Act
var actual = new RewardPointsResult(customer, transactions, _calculator);
// Assert
Assert.AreEqual(expected, actual.MonthlyTotals.Single().MonthName);
}
public void RewardPointsResult_ShouldSetup_TotalPoints_Equal_ToSumOfAllMonths()
{
// Arrange
IEnumerable <Transaction> transactions = new List <Transaction>
{
new Transaction
{
CustomerId = 1,
ProductId = 1,
Amount = 51,
PurchaseDate = new DateTime(2020, 5, 5)
},
new Transaction
{
CustomerId = 1,
ProductId = 1,
Amount = 51,
PurchaseDate = new DateTime(2020, 4, 4)
}
};
var customer = new Customer {
CustomerId = 1, FirstName = "Fake", LastName = "Customer"
};
// Act
var actual = new RewardPointsResult(customer, transactions, _calculator);
// Assert
Assert.AreEqual(actual.TotalRewardsPoints, actual.MonthlyTotals.Sum(t => t.PointsEarned));
}
public void RewardPointsResult_ShouldSetup_2_Months_For_Transactions_In_2_Different_Months()
{
// Arrange
IEnumerable <Transaction> transactions = new List <Transaction>
{
new Transaction
{
CustomerId = 1,
ProductId = 1,
Amount = 120,
PurchaseDate = new DateTime(2020, 5, 5)
},
new Transaction
{
CustomerId = 1,
ProductId = 1,
Amount = 120,
PurchaseDate = new DateTime(2020, 4, 4)
}
};
var customer = new Customer {
CustomerId = 1, FirstName = "Fake", LastName = "Customer"
};
var expected = 2;
// Act
var actual = new RewardPointsResult(customer, transactions, _calculator);
// Assert
Assert.AreEqual(expected, actual.MonthlyTotals.Count);
}