public void EvaluateAdditionTest()
{
Expression myExp = new Expression();
Evaluate Eval = new Evaluate();
var ex = myExp.Parse("5 + 1", Eval);
string actual = Eval.EvaluateFirst(ex);
string expected = "6";
Assert.AreEqual(expected, actual);
}
public void TestingOutputOfVariableAssignment()
{
Expression myExp = new Expression();
Evaluate Eval = new Evaluate();
var ex = myExp.Parse("x = 3", Eval);
var actual = Eval.EvaluateFirst(ex);
string expected = "saved 'x' as '3'";
Assert.AreEqual(expected, actual);
}
public void EvalStackLastQuestion()
{
Expression myExp = new Expression();
Evaluate Eval = new Evaluate();
var ex = myExp.Parse("6 * 2", Eval);
var eqnresult = Eval.EvaluateFirst(ex);
string actual = Eval.last();
string expected = "6*2";
Assert.AreEqual(expected, actual);
}
public void EvalStackLastAnswer()
{
Expression myExp = new Expression();
Evaluate Eval = new Evaluate();
var ex = myExp.Parse("6 * 2", Eval);
var eqnresult = Eval.EvaluateFirst(ex);
int actual = Eval.lastA();
int expected = 12;
Assert.AreEqual(expected, actual);
}
