public void TestAddToNumberMethodWhenSignChangedToPositive()
{
// Arrange
var sut = new Term
{
Number = 0.5f,
Sign = Signs.Minus
};
// Act
var sum = sut.AddToNumber(1.5f);
// Assert
Assert.AreEqual(1f, sum, 0.001);
}
public void TestAddToNumberMethodWhenNeativeSignDoNotChanged()
{
// Arrange
var sut = new Term
{
Number = 6.6f,
Sign = Signs.Minus
};
// Act
var sum = sut.AddToNumber(-1.2f);
// Assert
Assert.AreEqual(-7.8, sum, 0.001);
}
public void TestAddToNumberMethodWhenSignChangedToNegative()
{
// Arrange
var sut = new Term
{
Number = 1.1f,
Sign = Signs.Plus
};
// Act
var sum = sut.AddToNumber(-2.9f);
// Assert
Assert.AreEqual(-1.8, sum, 0.001);
}
public void TestAddToNumberMethodWhenPositiveSignDoNotChanged()
{
// Arrange
var sut = new Term
{
Number = 3.1f,
Sign = Signs.Plus
};
// Act
var sum = sut.AddToNumber(2.2f);
// Assert
Assert.AreEqual(5.3, sum, 0.001);
}