public void CanMultiply()
{
var engine = new Engine();
engine.Digit(2);
engine.Times();
engine.Digit(3);
engine.Equals();
Assert.AreEqual(6, engine.Value);
}
public void PrecedenceTest2()
{
var engine = new Engine();
engine.Digit(1);
engine.Times();
engine.Digit(2);
engine.Plus();
engine.Digit(3);
engine.Times();
engine.Digit(4);
engine.Equals();
Assert.AreEqual(20, engine.Value);
}
public void CanEnterNegativeDecimals()
{
var engine = new Engine();
engine.Minus();
engine.Point();
engine.Digit(1);
Assert.AreEqual(-0.1, engine.Value);
engine.Digit(2);
Assert.AreEqual(-0.12, engine.Value);
engine.Times();
Assert.AreEqual(-0.12, engine.Value);
engine.Digit(3);
engine.Equals();
Assert.AreEqual(-0.36, engine.Value);
}