public void TestShouldGive14()
{
var RPC = new ReversePolishCalculator();
RPC.InitOperations();
Assert.AreEqual(14d, RPC.Calculation("5 1 2 + 4 * + 3 -"));
}
public void TestComplexExpressions()
{
var RPC = new ReversePolishCalculator();
RPC.InitOperations();
Assert.AreEqual(2d, RPC.Calculation("2 2 + 2 -"));
Assert.AreEqual(9d, RPC.Calculation("3 2 - 2 + 3 *"));
Assert.AreEqual(6d, RPC.Calculation("3 3 * 5 2 - + 2 /"));
}
public void TestNothingAndNull()
{
var RPC = new ReversePolishCalculator();
RPC.InitOperations();
Assert.AreEqual(0d, RPC.Calculation(""));
Assert.AreEqual(0d, RPC.Calculation(null));
}
public void TestAllOperaters()
{
var RPC = new ReversePolishCalculator();
RPC.InitOperations();
Assert.AreEqual(4d, RPC.Calculation("2 2 +"));
Assert.AreEqual(1d, RPC.Calculation("3 2 -"));
Assert.AreEqual(9d, RPC.Calculation("3 3 *"));
Assert.AreEqual(1d, RPC.Calculation("3 3 /"));
Assert.AreEqual(81d, RPC.Calculation("3 4 ^"));
Assert.AreEqual(2d, RPC.Calculation("2 4 - abs"));
Assert.AreEqual(3d, RPC.Calculation("9 sqrt"));
}