public async Task GetProducts_WhenCalled_ReturnsRightAnnualCost(string consumption, int expectedAnnualCostProductA, int expectedAnnualCostProductB)
{
// Act
var result = await TariffServiceUnderTest.GetProducts(consumption);
// Assert
Assert.Equal(expectedAnnualCostProductA, result.FirstOrDefault(c => c.Name == "basic electricity tariff").AnnualCost);
Assert.Equal(expectedAnnualCostProductB, result.FirstOrDefault(c => c.Name == "Packaged tariff").AnnualCost);
}
public void Should_Throw_TariffException_When_Consumption_IsInvalid()
{
// Arange
string consumption = "invalid";
// Act
var result = TariffServiceUnderTest.GetProducts(consumption);
// Assert
Assert.ThrowsAsync <TariffException>(async() => await result);
}
public async Task Get_WhenCalled_ReturnsAllItems()
{
// Arange
string consumption = "3500";
// Act
var result = await TariffServiceUnderTest.GetProducts(consumption);
// Assert
Assert.Equal(2, result.Count());
}