public void Solutions_MinusOperator_Test()
{
//Try to represent the equation ((5+1) x 3) - 4
IEquation node1 = new AddOperation(new Integer(5), new Integer(1));
IEquation node2 = new MultiplyOperation(node1, new Integer(3));
IEquation equation1 = new MinusOperation(node2, new Integer(4));
//Try to represent the equation 1 + 2 +3
IEquation node3 = new AddOperation(new Integer(1), new Integer(2));
IEquation equation2 = new AddOperation(node3, new Integer(3));
Solutions solutions = new Solutions();
solutions.Add(equation1);
solutions.Add(equation2);
IEquation equation3 = new Integer(4);
Solutions new_solutions = solutions - equation3;
Assert.AreEqual(2, new_solutions.Count);
Assert.AreEqual(10, new_solutions[0].Value);
Assert.AreEqual(2, new_solutions[1].Value);
new_solutions = equation3 - solutions;
Assert.AreEqual(2, new_solutions.Count);
Assert.AreEqual(-10, new_solutions[0].Value);
Assert.AreEqual(-2, new_solutions[1].Value);
}
public void Equation_Test3()
{
//Try to represent the equation ((6 / 3) + 2) x 5
IEquation node1 = new DivideOperation(new Integer(6), new Integer(3));
Assert.AreEqual(2, node1.Value);
IEquation node2 = new AddOperation(node1, new Integer(2));
Assert.AreEqual(4, node2.Value);
IEquation equation = new MultiplyOperation(node2, new Integer(5));
Assert.AreEqual(20, equation.Value);
Assert.AreEqual("((6 / 3) + 2) x 5", equation.ToString());
}
public void Equation_Test1()
{
//Try to represent the equation ((5+1) x 3) - 4
IEquation node1 = new AddOperation(new Integer(5), new Integer(1));
Assert.AreEqual(6, node1.Value);
MultiplyOperation node2 = new MultiplyOperation(node1, new Integer(3));
Assert.AreEqual(18, node2.Value);
MinusOperation equation = new MinusOperation(node2, new Integer(4));
Assert.AreEqual(14, equation.Value);
Assert.AreEqual("((5 + 1) x 3) - 4", equation.ToString());
}
public void MultiplyOperation_Test()
{
MultiplyOperation op = new MultiplyOperation(new Integer(2), new Integer(4));
Assert.AreEqual(8, op.Value);
Assert.AreEqual("2 x 4", op.ToString());
}