public void CalculateChange_WhenPassedValueDivisibleBySingleCoinValue_ShouldReturnObjectWithOneKeyValPair()
{
// arrange
double original = 1;
var expected = new Dictionary <string, double>()
{
{ "1", 1 }
};
double original2 = 2;
var expected2 = new Dictionary <string, double>()
{
{ "2", 1 }
};
var x = new ChangeCalculator();
// act
var actual = x.CalculateChange(original);
var actual2 = x.CalculateChange(original2);
// assert
Assert.Equal(expected, actual);
Assert.Equal(expected2, actual2);
}
public void Returns_Correct_Change(int amount, int quarters, int dimes, int nickles, int pennies)
{
var change = _calculator.CalculateChange(amount);
var calculatedAmount = change.Quarters * 25 + change.Dimes * 10 + change.Nickles * 5 + change.Pennies;
Assert.AreEqual(amount, calculatedAmount, $"Expected {amount} cents total, got {calculatedAmount}");
Assert.AreEqual(quarters, change.Quarters, $"Expected {quarters} quarters, got {change.Quarters}");
Assert.AreEqual(dimes, change.Dimes, $"Expected {dimes} dimes, got {change.Dimes}");
Assert.AreEqual(nickles, change.Nickles, $"Expected {nickles} quarters, got {change.Nickles}");
Assert.AreEqual(pennies, change.Pennies, $"Expected {pennies} quarters, got {change.Pennies}");
}
public void CalculateChange_ExpectChangeCalculated_ExpectCorrectChange()
{
int cost = 2;
var transaction = new Transaction
{
Product = new Product
{
Name = "Pickle",
Cost = cost
},
CoinsEntered = new double[]
{
1,
2,
3,
4,
5
}
};
var expectedChange = transaction.CoinsEntered.Sum() - cost; //Preferred something human readable over autofixture
var productList = _fixture.Create <List <Product> >();
productList.Add(transaction.Product); //Ensure that our product is in there
var result = _sut.CalculateChange(transaction);
Assert.AreEqual(expectedChange, result);
}
public void ChangeCalculatorTest(int amount, int pay, ChangeModel expected)
{
var sut = new ChangeCalculator();
var actual = sut.CalculateChange(amount, pay);
actual.Should().BeEquivalentTo(expected);
}
public void CalculateChangeSuccessWithMinimumChange()
{
var calc = new ChangeCalculator();
var actual = calc.CalculateChange(0.02m, 0.01m);
Assert.AreEqual(1, actual.Count);
Assert.AreEqual(1, actual[0.01m]);
}
public void CalculateChangeSuccessWithExampleData()
{
var calc = new ChangeCalculator();
var actual = calc.CalculateChange(20.00m, 5.50m);
Assert.AreEqual(3, actual.Count);
Assert.AreEqual(1, actual[10.00m]);
Assert.AreEqual(2, actual[2.00m]);
Assert.AreEqual(1, actual[0.50m]);
}
public void CalculateChange_WhenPassedNoChange_ShouldReturnEmptyObject()
{
// arrange
double original = 0;
var expected = new Dictionary <string, double>();
var x = new ChangeCalculator();
// act
var actual = x.CalculateChange(original);
// assert
Assert.Equal(expected, actual);
}
public void CalculateChange_WhenPassedValueNotEqualToAnyKey_ShouldDivideIntoSeveralKeys_AndReturnObject()
{
// arrange
double original = 7;
var expected = new Dictionary <string, double>()
{
{ "2", 1 },
{ "5", 1 }
};
var x = new ChangeCalculator();
// act
var actual = x.CalculateChange(original);
// assert
Assert.Equal(expected, actual);
}
public void CalculateChange_WhenPassedDoubleDigitNum_ShouldStillReturnCorrectObject()
{
//arrange
double original = 13;
var expected = new Dictionary <string, double>()
{
{ "1", 1 },
{ "2", 1 },
{ "10", 1 }
};
var x = new ChangeCalculator();
// act
var actual = x.CalculateChange(original);
// assert
Assert.Equal(expected, actual);
}
public void CalculateChange_WhenPassedTripleDigitNum_ShouldReturnObjectWithMultipleCoinsWherePossible()
{
//arrange
double original = 229;
var expected = new Dictionary <string, double>()
{
{ "2", 2 },
{ "5", 1 },
{ "20", 1 },
{ "50", 4 }
};
var x = new ChangeCalculator();
// act
var actual = x.CalculateChange(original);
// assert
Assert.Equal(expected, actual);
}
public void CalculateChangeSuccessWithAllDenominations()
{
var calc = new ChangeCalculator();
var actual = calc.CalculateChange(88.89m, 0.01m);
Assert.AreEqual(12, actual.Count);
Assert.AreEqual(1, actual[0.01m]);
Assert.AreEqual(1, actual[0.02m]);
Assert.AreEqual(1, actual[0.05m]);
Assert.AreEqual(1, actual[0.10m]);
Assert.AreEqual(1, actual[0.20m]);
Assert.AreEqual(1, actual[0.50m]);
Assert.AreEqual(1, actual[1.00m]);
Assert.AreEqual(1, actual[2.00m]);
Assert.AreEqual(1, actual[5.00m]);
Assert.AreEqual(1, actual[10.00m]);
Assert.AreEqual(1, actual[20.00m]);
Assert.AreEqual(1, actual[50.00m]);
}
public void CalculateChangeFailurePriceGreaterThanMoneyGiven()
{
var calc = new ChangeCalculator();
Assert.ThrowsException <ArgumentException>(() => calc.CalculateChange(10m, 20m));
}
public void CalculateChangeFailurePriceNegative()
{
var calc = new ChangeCalculator();
Assert.ThrowsException <ArgumentOutOfRangeException>(() => calc.CalculateChange(10m, -10m));
}
public void CalculateChangeFailureMoneyGivenZero()
{
var calc = new ChangeCalculator();
Assert.ThrowsException <ArgumentOutOfRangeException>(() => calc.CalculateChange(0m, 5.50m));
}