public void TestSubtraction()
{
BinaryOperator subtractionExpression = new SubtractionOperator();
subtractionExpression.SetFirstOperand(new Value(2.17M));
subtractionExpression.SetSecondOperand(new Value(2.07M));
Assert.AreEqual(0.1M, subtractionExpression.Evaluate());
}
public void TestPrintSubtractionExpression()
{
BinaryOperator subtractOperation = new SubtractionOperator();
subtractOperation.SetFirstOperand(new Value(2.9M));
subtractOperation.SetSecondOperand(new Value(3));
Assert.AreEqual("2.9 - 3".Replace(" ", ""), subtractOperation.ToString().Replace(" ", ""));
}
