public void MakeChange_CostGreaterThanPaid_ThrowsArguementException()
{
// Arrange
var cost = _fixture.Create <decimal>();
var isRandom = _fixture.Create <bool>();
var changeOutput = new ChangeOutput(new UnitedStatesCurrency());
// Act
changeOutput.MakeChange(cost + 1, cost, isRandom);
}
public void MakeChange_CostAndPaidDiffNotRandom_ReturnsList()
{
// Arrange
var changeOutput = new ChangeOutput(new UnitedStatesCurrency());
// Act
var result = changeOutput.MakeChange(.5m, 1.02m, false);
// Assert
Assert.AreEqual("2 quarters,2 pennies", result);
}
public void MakeChange_MultipleDenominationsNotRandom_ReturnsList()
{
// Arrange
var changeOutput = new ChangeOutput(new UnitedStatesCurrency());
// Act
var result = changeOutput.MakeChange(0, .52m, false);
// Assert
Assert.AreEqual("2 quarters,2 pennies", result);
}
public void MakeChange_SingleDenominationsNotRandom_ReturnsList()
{
// Arrange
var changeOutput = new ChangeOutput(new UnitedStatesCurrency());
// Act
var result = changeOutput.MakeChange(0, 1.41m, false);
// Assert
Assert.AreEqual("1 dollar,1 quarter,1 dime,1 nickel,1 penny", result);
}
public void MakeChange_NoChange_ReturnsNoChangePhrase()
{
// Arrange
var testCurrency = _fixture.Create <TestCurrency>();
var cost = _fixture.Create <decimal>();
var isRandom = _fixture.Create <bool>();
var changeOutput = new ChangeOutput(testCurrency);
// Act
var result = changeOutput.MakeChange(cost, cost, isRandom);
// Assert
Assert.AreEqual(testCurrency.NoChangePhrase, result);
}
public void RandomChange_ValueIsSmallest_ReturnMaxCount()
{
// Arrange
var testCurrency = _fixture.Create <TestCurrency>();
var smallest = testCurrency.Denominations.Min(x => x.Value);
var expected = _fixture.Create <int>();
var changeOutput = new ChangeOutput(testCurrency);
// Act
var result = changeOutput.RandomCount(expected, smallest);
// Assert
Assert.AreEqual(expected, result);
}
public void MakeChange_RandomDenominations_ReturnsList()
{
// Arrange
var changeOutput = new ChangeOutput(new UnitedStatesCurrency());
var result = string.Empty;
var expected = "4 dollars,1 quarter,1 nickel,1 penny";
expected += (expected + expected);
// Act
result += changeOutput.MakeChange(0, 4.31m, true);
result += changeOutput.MakeChange(0, 4.31m, true);
result += changeOutput.MakeChange(0, 4.31m, true);
// Assert
Assert.AreNotEqual(expected, result);
}
public void RandomChange_ValueIsNotSmallest_ReturnRandomCount()
{
// Arrange
var testCurrency = _fixture.Create <TestCurrency>();
var largest = testCurrency.Denominations.Max(x => x.Value);
var maxCount = _fixture.Create <int>();
var result = 0;
var changeOutput = new ChangeOutput(testCurrency);
// Act
result += changeOutput.RandomCount(maxCount, largest);
result += changeOutput.RandomCount(maxCount, largest);
result += changeOutput.RandomCount(maxCount, largest);
// Assert
Assert.AreNotEqual(maxCount * 3, result);
}
