public void AddNegativeFractionsTest(int leftNum, int leftDen, int rightNum, int rightDen, int resNum, int resDen)
{
var left = new Fraction(leftNum, leftDen);
var right = new Fraction(rightNum, rightDen);
var result = FractionCalculator.Add(left, right);
Assert.Equal(resNum, result.Numerator);
Assert.Equal(resDen, result.Denominator);
}
public void AddTest(
int augendNumerator,
int augendDenominator,
int addendNumerator,
int addendDenominator,
int expectedNumerator,
int expectedDenominator)
{
var augend = new Fraction(augendNumerator, augendDenominator);
var addend = new Fraction(addendNumerator, addendDenominator);
var sum = _calculator.Add(augend, addend);
Assert.AreEqual(expectedNumerator, sum.Numerator);
Assert.AreEqual(expectedDenominator, sum.Denominator);
}
public void Should_add_zero_fractions()
{
Assert.That(FractionCalculator.Add(new Fraction(0, 0), new Fraction(0, 0)),
Is.EqualTo(new Fraction(0, 0)));
}
public void Should_add_negative_fractions(int addendNumerator, int addendDenominator, int augendNumerator, int augendDenominator, int expectedNumerator, int expectedDenominator)
{
Assert.That(FractionCalculator.Add(new Fraction(addendNumerator, addendDenominator), new Fraction(augendNumerator, augendDenominator)),
Is.EqualTo(new Fraction(expectedNumerator, expectedDenominator)));
}
public void Should_add_negative_whole_numbers(int addendNumerator, int augendNumerator, int expectedNumerator)
{
Assert.That(FractionCalculator.Add(new Fraction(addendNumerator), new Fraction(augendNumerator)),
Is.EqualTo(new Fraction(expectedNumerator)));
}
public void Should_add_fractions_when_one_addend_is_zero(int addendNumerator, int addendDenominator, int augendNumerator, int augendDenominator, int expectedNumerator, int expectedDenominator)
{
Assert.That(FractionCalculator.Add(new Fraction(addendNumerator, addendDenominator), new Fraction(augendNumerator, augendDenominator)),
Is.EqualTo(new Fraction(expectedNumerator, expectedDenominator)));
}
public void Should_add_fractions_with_different_denominator()
{
Assert.That(FractionCalculator.Add(new Fraction(1, 4), new Fraction(2, 5)),
Is.EqualTo(new Fraction(13, 20)));
}
public void Should_add_fractions_with_same_denominator()
{
Assert.That(FractionCalculator.Add(new Fraction(1, 4), new Fraction(2, 4)),
Is.EqualTo(new Fraction(3, 4)));
}