public void MultiplyTwoIntegers()
{
MultiplyExpression expr = new MultiplyExpression(new ConstantExpression(3), new ConstantExpression(2));
Assert.AreEqual(6, expr.Evaluate(null));
Assert.IsFalse(expr.HasVariable());
}
public void MultiplyIntegerByDouble()
{
MultiplyExpression expr = new MultiplyExpression(new ConstantExpression(2), new ConstantExpression(2.5));
Assert.AreEqual(2 * 2.5, expr.Evaluate(null));
}
public void MultiplyTwoDoubles()
{
MultiplyExpression expr = new MultiplyExpression(new ConstantExpression(2.5), new ConstantExpression(3.7));
Assert.AreEqual(2.5 * 3.7, expr.Evaluate(null));
}
public void MultiplyDoubleByInteger()
{
MultiplyExpression expr = new MultiplyExpression(new ConstantExpression(2.5), new ConstantExpression(3));
Assert.AreEqual(2.5 * 3, expr.Evaluate(null));
}