public void PayMoreThanPriceThenReturnChangeCorrectly(int price, int amount, int expected)
{
var sut = new ChangeCalculator();
var result = sut.GetChange(price, amount);
Assert.Equal(expected, result);
}
public void ChangeCalculatorReturnsTwoQuartersAndANickelFor55Cents()
{
var change = ChangeCalculator.GetChange(0.55d);
change.Coins.Count.ShouldBe(3);
change.Coins.Count(c => c.MonetaryValue == 0.25).ShouldBe(2);
change.Coins.Count(c => c.MonetaryValue == 0.05).ShouldBe(1);
}
public void ChangeCalculatorReturnsThreeQuartersAndADimeFor85Cents()
{
var change = ChangeCalculator.GetChange(0.85d);
change.Coins.Count.ShouldBe(4);
change.Coins.Count(c => c.MonetaryValue == 0.25).ShouldBe(3);
change.Coins.Count(c => c.MonetaryValue == 0.1).ShouldBe(1);
}
public void ChangeCalculatorReturnsAQuarterFor25()
{
var change = ChangeCalculator.GetChange(0.25d);
change.Coins.ShouldNotBeEmpty();
change.Value.ShouldBe(0.25d);
change.Coins.Count.ShouldBe(1);
}
public void ChangeCalculatorReturnsAQuarterANickelAndADimeFor40Cents()
{
var change = ChangeCalculator.GetChange(0.4d);
change.Coins.Count.ShouldBe(3);
change.Coins.Count(c => c.MonetaryValue == 0.25).ShouldBe(1);
change.Coins.Count(c => c.MonetaryValue == 0.05).ShouldBe(1);
change.Coins.Count(c => c.MonetaryValue == 0.1).ShouldBe(1);
}
public void ChangeCalculatorReturnsThreeQuartersFor75cents()
{
var change = ChangeCalculator.GetChange(0.75d);
change.Coins.ShouldNotBeEmpty();
change.Value.ShouldBe(0.75d);
change.Coins.Count.ShouldBe(3);
change.Coins.Count(c => c.MonetaryValue == 0.25).ShouldBe(3);
}
public void GetChange_NotNull()
{
var change = ChangeCalculator.GetChange(0, 0);
Assert.IsNotNull(change);
}
public void GetChange_Various_CorrectChange(int receivedMoney, int productPrice, int expected)
{
var change = ChangeCalculator.GetChange(receivedMoney, productPrice);
Assert.AreEqual(expected, change);
}
